1
  As filed with the Securities and Exchange Commission on December 18, 1998
                                                 Registration No. 333-__________


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM S-8
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933
                       -----------------------------------

                             APPLIED MATERIALS, INC.
               (Exact name of issuer as specified in its charter)

                                      
          Delaware                                    94-1655526
  (State or other jurisdiction           (I.R.S. employer identification number)
of incorporation or organization)
3050 Bowers Avenue, Santa Clara, California 95054 (Address of principal executive offices) (Zip Code) CONSILIUM, INC. 1996 STOCK OPTION PLAN CONSILIUM, INC. 1993 STOCK OPTION PLAN CONSILIUM, INC. AMENDED AND RESTATED 1990 OUTSIDE DIRECTORS STOCK OPTION PLAN CONSILIUM, INC. NONSTATUTORY STOCK OPTION AGREEMENT BY AND BETWEEN CONSILIUM, INC. AND LAURENCE R. HOOTNICK (Full title of the plans) Joseph J. Sweeney Applied Materials, Inc. 3050 Bowers Avenue, Santa Clara, California 95054 (Name and address of agent for service) Telephone number, including area code, of agent for service: (408) 727-5555 Copy to: John E. Aguirre Orrick, Herrington & Sutcliffe LLP 400 Sansome Street San Francisco, California 94111 CALCULATION OF REGISTRATION FEE
============================================================================================================ Proposed Maximum Proposed Maximum Title of Securities to Amount to be Offering Price Per Aggregate Offering Amount of be Registered Registered Share* Price* Registration Fee* ============================================================================================================ Common Stock, and 309,848 shares $40.65625 $12,597,257.75 $3,503 Options to Purchase Common Stock ============================================================================================================
* Estimated solely for the purpose of calculating the registration fee on the basis of $40.65625 per share, the average of the high and low prices for the Common Stock on December 15, 1998 as reported by Nasdaq. 1 2 INFORMATION REQUIRED IN THE REGISTRATION STATEMENT INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE The following documents are incorporated by reference in this registration statement: (i) the latest annual report of Applied Materials, Inc. (the "Registrant") filed pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"); (ii) all other reports filed by the Registrant pursuant to Sections 13(a) or 15(d) of the Exchange Act since the end of the fiscal year covered by the annual report referred to in clause (i) above; and (iii) the description of the Registrant's common stock set forth in the Registrant's Registration Statement on Form 8-A relating thereto, including any amendment or report filed for the purpose of updating such description. All documents filed by the Registrant after the date of this registration statement pursuant to Sections 13(a), 13(c), 14, and 15(d) of the Exchange Act, prior to the filing of a post-effective amendment (that indicates all securities offered have been sold or deregisters all securities then remaining unsold), shall be deemed to be incorporated by reference in this registration statement and to be a part hereof from the date of filing of such documents. ITEM 4. DESCRIPTION OF SECURITIES Inapplicable. ITEM 5. INTERESTS OF NAMED EXPERTS AND COUNSEL Inapplicable. ITEM 6. INDEMNIFICATION OF DIRECTORS AND OFFICERS Section 145 of the Delaware General Corporation Law (the "Delaware Law") authorizes a court to award, or a corporation's board of directors to grant, indemnity to directors and officers in terms sufficiently broad to permit such indemnification under certain circumstances for liabilities (including reimbursement for expenses incurred) arising under the Securities Act of 1933, as amended. The Registrant's Certificate of Incorporation provides for indemnification of the Registrant's directors, officers, employees and other agents to the maximum extent permitted by Delaware Law. ITEM 7. EXEMPTION FROM REGISTRATION CLAIMED Inapplicable. ITEM 8. EXHIBITS 4.1 Consilium, Inc. 1996 Stock Option Plan, as amended. 4.2 Consilium, Inc. 1993 Stock Option Plan, as amended. 4.3 Consilium, Inc. Amended and Restated 1990 Outside Directors Stock Option, as amended. 2 3 4.4 Consilium, Inc. Nonstatutory Stock Option Agreement by and between Consilium, Inc. and Laurence R. Hootnick, as amended. 5.1 Opinion of Orrick, Herrington & Sutcliffe LLP. 23.1 Consent of PricewaterhouseCoopers LLP, Independent Accountants. 23.2 Consent of Orrick, Herrington & Sutcliffe LLP is included in Exhibit 5.1 to this Registration Statement. 24.1 Power of Attorney of Directors. ITEM 9. UNDERTAKINGS (a) The undersigned registrant hereby undertakes: (1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement: (i) To include any prospectus required by section 10(a)(3) of the Securities Act of 1933; (ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement; (iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement; Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the registration statement is on Form S-3 or Form S-8 and the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed by the registrant pursuant to section 13 or section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement. (2) That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. (3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering. (b) The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant's annual report pursuant to section 13(a) or section 15(d) of the Securities Exchange Act of 1934 (and, where 3 4 applicable, each filing of an employee benefit plan's annual report pursuant to section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. (c) Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue. 4 5 Signatures THE REGISTRANT Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Santa Clara, State of California on the 17th day of December, 1998. APPLIED MATERIALS, INC. Registrant) /s/ James C. Morgan - ------------------------------------- James C. Morgan Chairman of the Board and Chief Executive Officer Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.
Signature Title Date Principal Executive Officer: /s/ James C. Morgan - -------------------------------- James C. Morgan Chairman of the Board and December 17, 1998 Chief Executive Officer Principal Financial Officer: /s/ Joseph R. Bronson - -------------------------------- Joseph R. Bronson Senior Vice President, Chief December 17, 1998 Financial Officer and Chief Administrative Officer Principal Accounting Officer: /s/ Michael K. O'Farrell - -------------------------------- Michael K. O'Farrell Vice President and December 17, 1998 Corporate Controller (Principal Accounting Officer)
5 6 Directors: * - -------------------------------- James C. Morgan Director December 17, 1998 * - -------------------------------- Dan Maydan Director December 17, 1998 * - -------------------------------- Michael H. Armacost Director December 17, 1998 * - -------------------------------- Deborah A. Coleman Director December 17, 1998 * - -------------------------------- Herbert M. Dwight, Jr. Director December 17, 1998 * - -------------------------------- Philip V. Gerdine Director December 17, 1998 * - -------------------------------- Tsuyoshi Kawanishi Director December 17, 1998 * - -------------------------------- Paul R. Low Director December 17, 1998
6 7 * - -------------------------------- Alfred J. Stein Director December 17, 1998 *By /s/ James C. Morgan ----------------------------- James C. Morgan Attorney-in-Fact
A majority of the members of the Board of Directors. 7 8 EXHIBIT INDEX 4.1 Consilium, Inc. 1996 Stock Option Plan, as amended. 4.2 Consilium, Inc. 1993 Stock Option Plan, as amended. 4.3 Consilium, Inc. Amended and Restated 1990 Outside Directors Stock Option Plan, as amended. 4.4 Consilium, Inc. Nonstatutory Stock Option Agreement by and between Consilium, Inc. and Laurence R. Hootnick, as amended. 5.1 Opinion of Orrick, Herrington & Sutcliffe LLP. 23.1 Consent of PricewaterhouseCoopers LLP, Independent Accountants. 23.2 Consent of Orrick, Herrington & Sutcliffe LLP is included in Exhibit 5.1 to this Registration Statement. 24.1 Power of Attorney of Directors. 8
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                                                                     EXHIBIT 4.1

                                 CONSILIUM,INC.

                             1996 STOCK OPTION PLAN

     1. ESTABLISHMENT, PURPOSE AND TERM OF PLAN.

        1.1 ESTABLISHMENT. The Consilium, Inc. 1996 Stock Option Plan (the
"Plan") is hereby established effective as of December 13, 1996 (the "EFFECTIVE
DATE").

        1.2 PURPOSE. The purpose of the Plan is to advance the interests of the
Participating Company Group and its stockholders by providing an incentive to
attract, retain and reward persons performing services for the Participating
Company Group and by motivating such persons to contribute to the growth and
profitability of the Participating Company Group.

        1.3 TERM OF PLAN. The Plan shall continue in effect until the earlier of
its termination by the Board or the date on which all of the shares of Stock
available for issuance under the Plan have been issued and all restrictions on
such shares under the terms of the Plan and the agreements evidencing Options
granted under the Plan have lapsed. However, all Incentive Stock Options shall
be granted, if at all, within ten (10) years from the earlier of the date the
Plan is adopted by the Board or the date the Plan is duly approved by the
stockholders of the Company. Notwithstanding the foregoing, if the maximum
number of shares of Stock issuable pursuant to the Plan as provided in Section
4.1 has been increased at any time, all Incentive Stock Options shall be
granted, if at all, no later than the last day preceding the tenth (10th)
anniversary of the earlier of (a) the date on which the latest such increase in
the maximum number of shares of Stock issuable under the Plan was approved by
the stockholders of the Company or (b) the date such amendment was adopted by
the Board.

     2. DEFINITIONS AND CONSTRUCTION.

        2.1 DEFINITIONS. Whenever used herein, the following terms shall have
their respective meanings set forth below:

            (a) "BOARD" means the Board of Directors of the Company. If one or
more Committees have been appointed by the Board to administer the Plan, "Board"
also means such Committee(s).

            (b) "CODE" means the Internal Revenue Code of 1986, as amended, and
any applicable regulations promulgated thereunder.

            (c) "COMMITTEE" means the Compensation Committee or other committee
of the Board duly appointed to administer the Plan and having such powers as
shall be specified by the Board. Unless the powers of the Committee have been
specifically limited, the Committee shall have all of the powers of the Board
granted herein, including, without limitation, the power to amend or terminate
the Plan at any time, subject to the terms of the Plan and any applicable
limitations imposed by law. 



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            (d) "COMPANY" means Consilium, Inc., a Delaware corporation, or any
successor corporation thereto. 

            (e) "CONSULTANT" means any person, including an advisor, engaged by
a Participating Company to render services other than as an Employee or a
Director. 

            (f) "DIRECTOR" means a member of the Board or of the board of
directors of any other Participating Company. 

            (g) "EMPLOYEE" means any person treated as an employee (including an
officer or a Director who is also treated as an employee) in the records of a
Participating Company; provided, however, that neither service as a Director nor
payment of a director's fee shall be sufficient to constitute employment for
purposes of the Plan.

            (h) "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended. 

            (i) "FAIR MARKET VALUE" means, as of any date, the value of a share
of Stock or other property as determined by the Board, in its sole discretion or
by the Company, in its sole discretion, if such determination is expressly
allocated to the Company herein, subject to the following: 

               (i) If, on such date, there is a public market for the Stock, the
Fair Market Value of a share of Stock shall be the closing sale price of a share
of Stock (or the mean of the closing bid and asked prices of a share of Stock if
the Stock is so quoted instead) as quoted on the Nasdaq National Market, the
Nasdaq Small-Cap Market or such other national or regional securities exchange
or market system constituting the primary market for the Stock, as reported in
the Wall Street Journal or such other source as the Company deems reliable. If
the relevant date does not fall on a day on which the Stock has traded on such
securities exchange or market system, the date on which the Fair Market Value
shall be established shall be the last day on which the Stock was so traded
prior to the relevant date, or such other appropriate day as shall be determined
by the Board, in its sole discretion.

               (ii) If, on such date, there is no public market for the Stock,
the Fair Market Value of a share of Stock shall be as determined by the Board
without regard to any restriction other than a restriction which, by its terms,
will never lapse.

            (j) "INCENTIVE STOCK OPTION" means an Option intended to be (as set
forth in the Option Agreement) and which qualifies as an incentive stock option
within the meaning of Section 422(b) of the Code.

            (k) "INSIDER" means an officer or a Director of the Company or any
other person whose transactions in Stock are subject to Section 16 of the
Exchange Act.

            (l) "NONSTATUTORY STOCK OPTION" means an Option not intended to be
(as set forth in the Option Agreement) or which does not qualify as an Incentive
Stock Option. 



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            (m) "OPTION" means a right to purchase Stock (subject to adjustment
as provided in Section 4.2) pursuant to the terms and conditions of the Plan. An
Option may be either an Incentive Stock Option or a Nonstatutory Stock Option.

            (n) "OPTION AGREEMENT" means a written agreement between the Company
and an Optionee setting forth the terms, conditions and restrictions of the
Option granted to the Optionee and any shares acquired upon the exercise
thereof. 

            (o) "OPTIONEE" means a person who has been granted one or more
Options. 

            (p) "PARENT CORPORATION" means any present or future "parent
corporation" of the Company, as defined in Section 424(e) of the Code. 

            (q) "PARTICIPATING COMPANY" means the Company or any Parent
Corporation or Subsidiary Corporation.

            (r) "PARTICIPATING COMPANY GROUP" means, at any point in time, all
corporations collectively which are then Participating Companies. 

            (s) "RULE 16b-3" means Rule 16b-3 under the Exchange Act, as amended
from time to time, or any successor rule or regulation. 

            (t) "SECTION 162(m)" means Section 162(m) of the Code, as amended by
the Revenue Reconciliation Act of 1993 (P.L. 103-66). 

            (u) "STOCK" means the common stock, par value $0.01, of the Company,
as adjusted from time to time in accordance with Section 4.2. 

            (v) "SUBSIDIARY CORPORATION" means any present or future "subsidiary
corporation" of the Company, as defined in Section 424(f) of the Code.

            (w) "TEN PERCENT OWNER OPTIONEE" means an Optionee who, at the time
an Option is granted to the Optionee, owns stock possessing more than ten
percent (10%) of the total combined voting power of all classes of stock of a
Participating Company within the meaning of Section 422(b)(6) of the Code. 

        2.2 CONSTRUCTION. Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of the Plan. Except when otherwise indicated by the context, the
singular shall include the plural and the plural shall include the singular. Use
of the term "or" is not intended to be exclusive, unless the context clearly
requires otherwise.

     3. ADMINISTRATION.

        3.1 ADMINISTRATION BY THE BOARD. The Plan shall be administered by the
Board, including any duly appointed Committee of the Board. All questions of
interpretation of the Plan or of any Option shall be determined by the Board,
and such determinations shall be



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final and binding upon all persons having an interest in the Plan or such
Option. Any officer of a Participating Company shall have the authority to act
on behalf of the Company with respect to any matter, right, obligation,
determination or election which is the responsibility of or which is allocated
to the Company herein, provided the officer has apparent authority with respect
to such matter, right, obligation, determination or election.

        3.2 ADMINISTRATION WITH RESPECT TO INSIDERS. With respect to
participation by Insiders in the Plan, at any time that any class of equity
security of the Company is registered pursuant to Section 12 of the Exchange
Act, the Plan shall be administered in compliance with the requirements, if any,
of Rule 16b-3. 

        3.3 POWERS OF THE BOARD. In addition to any other powers set forth in
the Plan and subject to the provisions of the Plan, the Board shall have the
full and final power and authority, in its sole discretion:

            (a) to determine the persons to whom, and the time or times at
which, Options shall be granted and the number of shares of Stock to be subject
to each Option;

            (b) to designate Options as Incentive Stock Options or Nonstatutory
Stock Options; 

            (c) to determine the Fair Market Value of shares of Stock or other
property; 

            (d) to determine the terms, conditions and restrictions applicable
to each Option (which need not be identical) and any shares acquired upon the
exercise thereof, including, without limitation, (i) the exercise price of the
Option, (ii) the method of payment for shares purchased upon the exercise of the
Option, (iii) the method for satisfaction of any tax withholding obligation
arising in connection with the Option or such shares, including by the
withholding or delivery of shares of stock, (iv) the timing, terms and
conditions of the exercisability of the Option or the vesting of any shares
acquired upon the exercise thereof, (v) the time of the expiration of the
Option, (vi) the effect of the Optionee's termination of employment or service
with the Participating Company Group on any of the foregoing, and (vii) all
other terms, conditions and restrictions applicable to the Option or such shares
not inconsistent with the terms of the Plan;

            (e) to approve one or more forms of Option Agreement;

            (f) to amend, modify, extend, or renew, or grant a new Option in
substitution for, any Option or to waive any restrictions or conditions
applicable to any Option or any shares acquired upon the exercise thereof; 

            (g) to accelerate, continue, extend or defer the exercisability of
any Option or the vesting of any shares acquired upon the exercise thereof,
including with respect to the period following an Optionee's termination of
employment or service with the Participating Company Group;



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            (h) to prescribe, amend or rescind rules, guidelines and policies
relating to the Plan, or to adopt supplements to, or alternative versions of,
the Plan, including, without limitation, as the Board deems necessary or
desirable to comply with the laws of, or to accommodate the tax policy or custom
of, foreign jurisdictions whose citizens may be granted Options; and

            (i) to correct any defect, supply any omission or reconcile any
inconsistency in the Plan or any Option Agreement and to make all other
determinations and take such other actions with respect to the Plan or any
Option as the Board may deem advisable to the extent consistent with the Plan
and applicable law.

        3.4 COMMITTEE COMPLYING WITH SECTION 162(m). If a Participating Company
is a "publicly held corporation" within the meaning of Section 162(m), the Board
may establish a Committee of "outside directors" within the meaning of Section
162(m) to approve the grant of any Option which might reasonably be anticipated
to result in the payment of employee remuneration that would otherwise exceed
the limit on employee remuneration deductible for income tax purposes pursuant
to Section 162(m).

    4. SHARES SUBJECT TO PLAN.

        4.1 MAXIMUM NUMBER OF SHARES ISSUABLE. Subject to adjustment as provided
in Section 4.2, the maximum aggregate number of shares of Stock that may be
issued under the Plan shall be the sum of (a) Eight Hundred Ninety Thousand
(890,000) shares, (b) the number of shares of Stock, as of the Effective Date,
subject to outstanding options granted pursuant to the Company's Fourth Amended
and Restated 1983 Stock Option Plan and 1993 Stock Option Plan (collectively,
the "PRIOR PLANS"), which amount is One Million Six Hundred Seventy-Seven
Thousand Six Hundred Fifty-Four (1,677,654) shares (the "PRIOR PLAN OPTIONS"),
and (c) the number of shares of Stock available for future grant under the Prior
Plans as of the Effective Date, which amount is Two Hundred Forty-Five Thousand
Six Hundred Twenty-Four (245,624) (the "PRIOR PLAN AVAILABLE SHARES"), resulting
in an aggregate total of Two Million Eight Hundred Thirteen Thousand Two Hundred
Seventy-Eight (2,813,278) shares (the "SHARE RESERVE") and shall consist of
authorized but unissued or reacquired shares of Stock or any combination
thereof. Notwithstanding the foregoing, the Share Reserve, determined at any
time, shall be reduced by (a) the number of shares remaining subject to
outstanding Prior Plan Options, (b) the number of shares issued upon the
exercise of Prior Plan Options, and (c) the number of shares, if any, of the
Prior Plan Available Shares which are issued upon the exercise of options
granted under the Prior Plans subsequent to the Effective Date. If an
outstanding Option for any reason expires or is terminated or canceled, or if
shares of Stock acquired, subject to repurchase, upon the exercise of an Option
are repurchased by the Company, the shares of Stock allocable to the unexercised
portion of such Option or such repurchased shares of Stock shall again be
available for issuance under the Plan.

        4.2 ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE. In the event of any
stock dividend, stock split, reverse stock split, recapitalization, combination,
reclassification or similar change in the capital structure of the Company,
appropriate adjustments shall be made in the number and class of shares subject
to the Plan and to any outstanding Options, in the Section 162(m) Grant Limit
set forth in Section 5.4, and in the exercise price per share of any



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outstanding Options. If a majority of the shares which are of the same class as
the shares that are subject to outstanding Options are exchanged for, converted
into, or otherwise become (whether or not pursuant to an Ownership Change Event,
as defined in Section 8.1) shares of another corporation (the "New Shares"), the
Board may unilaterally amend the outstanding Options to provide that such
Options are exercisable for New Shares. In the event of any such amendment, the
number of shares subject to, and the exercise price per share of, the
outstanding Options shall be adjusted in a fair and equitable manner as
determined by the Board, in its sole discretion. Notwithstanding the foregoing,
any fractional share resulting from an adjustment pursuant to this Section 4.2
shall be rounded up or down to the nearest whole number, as determined by the
Board, and in no event may the exercise price of any Option be decreased to an
amount less than the par value, if any, of the stock subject to the Option. The
adjustments determined by the Board pursuant to this Section 4.2 shall be final,
binding and conclusive. 

    5. ELIGIBILITY AND OPTION LIMITATIONS.

       5.1 PERSONS ELIGIBLE FOR OPTIONS. Options may be granted only to
Employees, Consultants, and Directors. For purposes of the foregoing sentence,
"Employees," "Consultants" and "Directors" shall include prospective Employees,
prospective Consultants and prospective Directors to whom Options are granted in
connection with written offers of employment or other service relationship with
the Participating Company Group. Eligible persons may be granted more than one
(1) Option.

        5.2 OPTION GRANT RESTRICTIONS Any person who is not an Employee on the
effective date of the grant of an Option to such person may be granted only a
Nonstatutory Stock Option. An Incentive Stock Option granted to a prospective
Employee upon the condition that such person become an Employee shall be deemed
granted effective on the date such person commences service with a Participating
Company, with an exercise price determined as of such date in accordance with
Section 6.1. 

        5.3 FAIR MARKET VALUE LIMITATION. To the extent that options designated
as Incentive Stock Options (granted under all stock option plans of the
Participating Company Group, including the Plan) become exercisable by an
Optionee for the first time during any calendar year for stock having an
aggregate Fair Market Value greater than One Hundred Thousand Dollars
($100,000), the portion of such options which exceeds such amount shall be
treated as Nonstatutory Stock Options. For purposes of this Section 5.3, options
designated as Incentive Stock Options shall be taken into account in the order
in which they were granted, and the Fair Market Value of stock shall be
determined as of the time the option with respect to such stock is granted. If
the Code is amended to provide for a different limitation from that set forth in
this Section 5.3, such different limitation shall be deemed incorporated herein
effective as of the date and with respect to such Options as required or
permitted by such amendment to the Code. If an Option is treated as an Incentive
Stock Option in part and as a Nonstatutory Stock Option in part by reason of the
limitation set forth in this Section 5.3, the Optionee may designate which
portion of such Option the Optionee is exercising. In the absence of such
designation, the Optionee shall be deemed to have exercised the Incentive Stock
Option portion of the Option first. Separate certificates representing each such
portion shall be issued upon the exercise of the Option. 



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        5.4 SECTION 162(m) GRANT LIMIT. Subject to adjustment as provided in
Section 4.2, at any such time as a Participating Company is a "publicly held
corporation" within the meaning of Section 162(m), no Employee shall be granted
one or more Options within any fiscal year of the Company which in the aggregate
are for the purchase of more than Two Hundred Thousand (200,000) shares;
provided, however, that the Company may make grant any newly-hired Employee an
Option for the purchase of up to Three Hundred Thousand (300,000) shares (the
"SECTION 162(m) GRANT LIMIT"). An Option which is canceled in the same fiscal
year of the Company in which it was granted shall continue to be counted against
the Section 162(m) Grant Limit for such period.

    6. TERMS AND CONDITIONS OF OPTIONS. Options shall be evidenced by Option
Agreements specifying the number of shares of Stock covered thereby, in such
form as the Board shall from time to time establish. Option Agreements may
incorporate all or any of the terms of the Plan by reference and shall comply
with and be subject to the following terms and conditions:

        6.1 EXERCISE PRICE. The exercise price for each Option shall be
established in the sole discretion of the Board; provided, however, that (a) the
exercise price per share for an Option shall be not less than the Fair Marked
Value of a share of Stock on the effective date of grant of the Option and (b)
no Incentive Stock Option granted to a Ten Percent Owner Optionee shall have an
exercise price per share less than one hundred ten percent (110%) of the Fair
Market Value of a share of Stock on the effective date of grant of the Option.
Notwithstanding the foregoing, an Option (whether an Incentive Stock Option or a
Nonstatutory Stock Option) may be granted with an exercise price lower than the
minimum exercise price set forth above if such Option is granted pursuant to an
assumption or substitution for another option in a manner qualifying under the
provisions of Section 424(a) of the Code.

        6.2 EXERCISE PERIOD. Options shall be exercisable at such time or times,
or upon such event or events, and subject to such terms, conditions, performance
criteria, and restrictions as shall be determined by the Board and set forth in
the Option Agreement evidencing such Option; provided, however, that (a) no
Incentive Stock Option shall be exercisable after the expiration of ten (10)
years after the effective date of grant of such Option, (b) no Incentive Stock
Option granted to a Ten Percent Owner Optionee shall be exercisable after the
expiration of five (5) years after the effective date of grant of such Option,
and (c) no Option granted to a prospective Employee, prospective Consultant or
prospective Director may become exercisable prior to the date on which such
person commences service with a Participating Company. 

        6.3 PAYMENT OF EXERCISE PRICE.

            (a) FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise provided
below, payment of the exercise price for the number of shares of Stock being
purchased pursuant to any Option shall be made (i) in cash, by check, or cash
equivalent, (ii) by tender to the Company of shares of Stock owned by the
Optionee having a Fair Market Value (as determined by the Company without regard
to any restrictions on transferability applicable to such stock by reason of
federal or state securities laws or agreements with an underwriter for the
Company) not less than the exercise price, (iii) by the assignment of the
proceeds of a sale or



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loan with respect to some or all of the shares being acquired upon the exercise
of the Option (including, without limitation, through an exercise complying with
the provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System) (a "Cashless Exercise"), (iv) by the
Optionee's promissory note in a form approved by the Company, (v) by such other
consideration as may be approved by the Board from time to time to the extent
permitted by applicable law, or (vi) by any combination thereof. The Board may
at any time or from time to time, by adoption of or by amendment to the standard
forms of Option Agreement described in Section 7, or by other means, grant
Options which do not permit all of the foregoing forms of consideration to be
used in payment of the exercise price or which otherwise restrict one or more
forms of consideration.

            (b) TENDER OF STOCK. Notwithstanding the foregoing, an Option may
not be exercised by tender to the Company of shares of Stock to the extent such
tender of Stock would constitute a violation of the provisions of any law,
regulation or agreement restricting the redemption of the Company's stock.
Unless otherwise provided by the Board, an Option may not be exercised by tender
to the Company of shares of Stock unless such shares either have been owned by
the Optionee for more than six (6) months or were not acquired, directly or
indirectly, from the Company.

            (c) CASHLESS EXERCISE. The Company reserves, at any and all times,
the right, in the Company's sole and absolute discretion, to establish, decline
to approve or terminate any program or procedures for the exercise of Options by
means of a Cashless Exercise. 

            (d) PAYMENT BY PROMISSORY NOTE. No promissory note shall be
permitted if the exercise of an Option using a promissory note would be a
violation of any law. Any permitted promissory note shall be on such terms as
the Board shall determine at the time the Option is granted. The Board shall
have the authority to permit or require the Optionee to secure any promissory
note used to exercise an Option with the shares of Stock acquired upon the
exercise of the Option or with other collateral acceptable to the Company.
Unless otherwise provided by the Board, if the Company at any time is subject to
the regulations promulgated by the Board of Governors of the Federal Reserve
System or any other governmental entity affecting the extension of credit in
connection with the Company's securities, any promissory note shall comply with
such applicable regulations, and the Optionee shall pay the unpaid principal and
accrued interest, if any, to the extent necessary to comply with such applicable
regulations.

        6.4 TAX WITHHOLDING. The Company shall have the right, but not the
obligation, to deduct from the shares of Stock issuable upon the exercise of an
Option, or to accept from the Optionee the tender of, a number of whole shares
of Stock having a Fair Market Value, as determined by the Company, equal to all
or any part of the federal, state, local and foreign taxes, if any, required by
law to be withheld by the Participating Company Group with respect to such
Option or the shares acquired upon the exercise thereof. Alternatively or in
addition, in its sole discretion, the Company shall have the right to require
the Optionee, through payroll withholding, cash payment or otherwise, including
by means of a Cashless Exercise, to make adequate provision for any such tax
withholding obligations of the Participating Company Group arising in connection
with the Option or the shares acquired upon the exercise thereof. 



                                        8
   9

The Company shall have no obligation to deliver shares of Stock or to release
shares of Stock from an escrow established pursuant to the Option Agreement
until the Participating Company Group's tax withholding obligations have been
satisfied by the Optionee.

    7. STANDARDS FORMS OF OPTION AGREEMENT.

       7.1 INCENTIVE STOCK OPTIONS. Unless otherwise provided by the Board at
the time the Option is granted, an Option designated as an "Incentive Stock
Option" shall comply with and be subject to the terms and conditions set forth
in the appropriate form of Incentive Stock Option Agreement adopted by the Board
concurrently with its adoption of the Plan and as amended from time to time.

       7.2 NONSTATUTORY STOCK OPTIONS. Unless otherwise provided by the Board
at the time the Option is granted, an Option designated as a "Nonstatutory Stock
Option" shall comply with and be subject to the terms and conditions set forth
in the appropriate form of Nonstatutory Stock Option Agreement adopted by the
Board concurrently with its adoption of the Plan and as amended from time to
time.

       7.3 STANDARD TERM OF OPTIONS. Except as otherwise provided in Section
6.2 or by the Board in the grant of an Option, any Option granted hereunder
shall have a term of ten (10) years from the effective date of grant of the
Option.

       7.4 AUTHORITY TO VARY TERMS. The Board shall have the authority from
time to time to vary the terms of any of the standard forms of Option Agreement
described in this Section 7 either in connection with the grant or amendment of
an individual Option or in connection with the authorization of a new standard
form or forms; provided, however, that the terms and conditions of any such new,
revised or amended standard form or forms of Option Agreement are not
inconsistent with the terms of the Plan. Such authority shall include, but not
by way of limitation, the authority to grant Options which are immediately
exercisable subject to the Company's right to repurchase any unvested shares of
Stock acquired by an Optionee upon the exercise of an Option in the event such
Optionee's employment or service with the Participating Company Group is
terminated for any reason, with or without cause. 

    8. TRANSFER OF CONTROL.

       8.1 DEFINITIONS.

           (a) An "OWNERSHIP CHANGE EVENT" shall be deemed to have occurred if
any of the following occurs with respect to the Company:

               (i) the direct or indirect sale or exchange in a single or series
of related transactions by the stockholders of the Company of more than fifty
percent (50%) of the voting stock of the Company;

               (ii) a merger or consolidation in which the Company is a party;

               (iii) the sale, exchange, or transfer of all or substantially all
of the assets of the Company; or



                                        9
   10

               (iv) a liquidation or dissolution of the Company. 

            (b) A "TRANSFER OF CONTROL" shall mean an Ownership Change Event or
a series of related Ownership Change Events (collectively, the "TRANSACTION")
wherein the stockholders of the Company immediately before the Transaction do
not retain immediately after the Transaction, in substantially the same
proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final,
binding and conclusive.

            8.2 EFFECT OF TRANSFER OF CONTROL ON OPTIONS. In the event of a
Transfer of Control, the surviving, continuing, successor, or purchasing
corporation or parent corporation thereof, as the case may be (the "ACQUIRING
CORPORATION"), may either assume the Company's rights and obligations under
outstanding Options or substitute for outstanding Options substantially
equivalent options for the Acquiring Corporation's stock. For purposes of this
Section 8.2, an Option shall be deemed assumed if, following the Transfer of
Control, the Option confers the right to purchase, for each share of Stock
subject to the Option immediately prior to the Transfer of Control, the
consideration (whether stock, cash or other securities or property) to which a
holder of a share of Stock on the effective date of the Transfer of Control was
entitled. In the event the Acquiring Corporation assumes or substitutes for an
outstanding Option in connection with a Transfer of Control, no acceleration of
exercisability or vesting shall occur, unless otherwise provided in the Option
Agreement evidencing such Option or a change of control agreement between the
Company and the Optionee, if any. In the event the Acquiring Corporation elects
not to assume or substitute for outstanding Options in connection with a
Transfer of Control, any unexercisable or unvested portion of the outstanding
Options shall be immediately exercisable and vested in full as of the date ten
(10) days prior to the date of the Transfer of Control. The exercise or vesting
of any Option that was permissible solely by reason of this Section 8.2 shall be
conditioned upon the consummation of the Transfer of Control. Any Options which
are neither assumed or substituted for by the Acquiring Corporation in
connection with the Transfer of Control nor exercised as of the date of the
Transfer of Control shall terminate and cease to be outstanding effective as of
the date of the Transfer of Control. Notwithstanding the foregoing, shares
acquired upon exercise of an Option prior to the Transfer of Control and any
consideration received pursuant to the Transfer of Control with respect to such
shares shall continue to be subject to all applicable provisions of the Option
Agreement evidencing such Option except as otherwise provided in such Option
Agreement. Furthermore, notwithstanding the foregoing, if the corporation the
stock of which is subject to the outstanding Options immediately prior to an
Ownership Change Event described in Section 8.1(a)(i) constituting a Transfer of
Control is the surviving or continuing corporation and immediately after such
Ownership Change Event less than fifty percent (50%) of the total combined
voting 



                                       10
   11

power of its voting stock is held by another corporation or by other
corporations that are members of an affiliated group within the meaning of
Section 1504(a) of the Code without regard to the provisions of Section 1504(b)
of the Code, the outstanding Options shall not terminate unless the Board
otherwise provides in its sole discretion.

        9. PROVISION OF INFORMATION. Each Optionee shall be given access to
information concerning the Company equivalent to that information generally made
available to the Company's common stockholders.

        10. NONTRANSFERABILITY OF INCENTIVE STOCK OPTIONS. During the lifetime
of the Optionee, an Option shall be exercisable only by the Optionee or the
Optionee's guardian or legal representative. No Option shall be assignable or
transferable by the Optionee, except by will or by the laws of descent and
distribution. Notwithstanding the foregoing, a Nonstatutory Stock Option shall
be assignable or transferable to the extent permitted by the Board and set forth
in the Option Agreement evidencing such Option.

        11. INDEMNIFICATION. In addition to such other rights of indemnification
as they may have as members of the Board or officers or employees of the
Participating Company Group, members of the Board and any of officers or
employees of the Participating Company Group to whom authority to act for the
Board or the Company is delegated shall be indemnified by the Company against
all reasonable expenses, including attorneys' fees, actually and necessarily
incurred in connection with the defense of any action, suit or proceeding, or in
connection with any appeal therein, to which they or any of them may be a party
by reason of any action taken or failure to act under or in connection with the
Plan, or any right granted hereunder, and against all amounts paid by them in
settlement thereof (provided such settlement is approved by independent legal
counsel selected by the Company) or paid by them in satisfaction of a judgment
in any such action, suit or proceeding, except in relation to matters as to
which it shall be adjudged in such action, suit or proceeding that such person
is liable for gross negligence, bad faith or intentional misconduct in duties;
provided, however, that within sixty (60) days after the institution of such
action, suit or proceeding, such person shall offer to the Company, in writing,
the opportunity at its own expense to handle and defend the same.

        12. TERMINATION OR AMENDMENT OF PLAN. The Board may terminate or amend
the Plan at any time. However, subject to changes in applicable law, regulations
or rules that would permit otherwise, without the approval of the Company's
stockholders, there shall be (a) no increase in the maximum aggregate number of
shares of Stock that may be issued under the Plan (except by operation of the
provisions of Section 4.2), (b) no change in the class of persons eligible to
receive Incentive Stock Options, and (c) no other amendment of the Plan that
would require approval of the Company's stockholders under any applicable law,
regulation or rule. In any event, no termination or amendment of the Plan may
adversely affect any then outstanding Option or any unexercised portion thereof,
without the consent of the Optionee, unless such termination or amendment is
required to enable an Option designated as an Incentive Stock Option to qualify
as an Incentive Stock Option or is necessary to comply with any applicable law,
regulation or rule.



                                       11
   12

               IN WITNESS WHEREOF, the undersigned Secretary of the Company
certifies that the foregoing is the Consilium, Inc. 1996 Stock Option Plan as
duly adopted by the Board on December 13, 1996 and amended by the Board through
December 16, 1997.


                                        
                                        ----------------------------------------
                                        Secretary



                                       12
   13
                             AMENDMENT NO. 1 TO THE
                                 CONSILIUM, INC.
                             1996 STOCK OPTION PLAN

               CONSILIUM, INC., having established the Consilium, Inc. 1996
Stock Option Plan (the "Plan"), hereby amends the Plan, effective as of December
11, 1998, as follows:

        1.      Section 1.3 of the Plan is hereby amended in its entirety as 
                follows:
                
                        1.3 TERM OF PLAN. In connection with the merger (the
                "Merger") on December 11, 1998 of Consilium, Inc. (the
                "Company") and Pennsylvania Acquisition Sub, Inc.,
                ("Pennsylvania") a Delaware corporation and a wholly-owned
                subsidiary of Applied Materials, Inc. ("AMAT"), Options
                previously granted to Optionees under the Plan that remain
                outstanding as of December 11, 1998 (the "Outstanding Options"),
                have been modified pursuant to the Agreement and Plan of Merger
                and Reorganization dated as of October 12, 1998 (the "Merger
                Agreement"), among the Company, Pennsylvania and AMAT, so as to
                be exercisable only into shares of common stock of AMAT, par
                value $0.01 per share (the "Stock"), all as set forth in such
                Merger Agreement and subject to its terms and conditions.
                Effective as of December 11, 1998, except with respect to the
                Outstanding Options, the Plan is terminated. Accordingly, no
                shares of Stock remain available for future grant under the
                Plan, other than pursuant to the Outstanding Options.

        2.      Section 3.1 of the Plan is hereby amended in its entirety to
                read as follows:

                        3.1 ADMINISTRATION. The Plan shall be administered by
                the Stock Option and Compensation Committee of the Board of
                Directors of AMAT. As used throughout this Plan, the "Committee"
                and the "Board" shall mean the Stock Option and Compensation
                Committee of the Board of Directors of AMAT.

                        3. The first two sentences of Section 4.1 are hereby
                replaced with the following sentence: 

                AMAT has reserved such number of shares of Stock as are
                necessary to satisfy the Outstanding Options described in
                Section 1.3 of the Plan.



                                        1
   14

        4.      Section 5.1 of the Plan is hereby amended in its entirety to
                read as follows:

                        5.1 NO FURTHER OPTION GRANTS. Effective December 11,
                1998, except with respect to the Outstanding Options, the Plan
                is terminated. Accordingly, no further Options shall be granted
                under the Plan. Optionees holding Outstanding Options may
                continue to exercise such Outstanding Options in accordance with
                their terms, subject to the terms and conditions of the Merger
                Agreement.

        5.      Section 12 of the Plan is hereby amended by adding the following
                sentence to the end thereof to read as follows:

                Except with respect to the Outstanding Options, the Plan shall
                terminate effective as of December 11, 1998.

                IN WITNESS WHEREOF, Consilium, Inc., by the officer identified
below, who has been duly authorized by the Board of Directors of the Company,
has executed this Amendment No. 1 on the date indicated below.


                                        CONSILIUM, INC.


                                        By:
                                           -------------------------------------
                                        Title:
                                              ----------------------------------
                                        Date:
                                             -----------------------------------



                                        2
   1
                                                                     EXHIBIT 4.2

                                CONSILIUM, INC.

                             1993 STOCK OPTION PLAN

     1. Purpose. The Consilium, Inc. 1993 Stock Option Plan (the "Plan") is
established to create additional incentive for key employees (excluding any such
employees who are also officers or directors) of Consilium, Inc. and any present
or future parent and/or subsidiary corporations of such corporation
(collectively referred to as the "Company") to promote the financial success and
progress of the Company. For purposes of the Plan, a parent corporation and a
subsidiary corporation shall be as defined in sections 424(e) and 424(f) of the
Internal Revenue Code of 1986, as amended (the "Code").

     2. Administration. The Plan shall be administered by the Board of Directors
of the Company (the "Board") and/or by a duly appointed committee of the Board
having such powers as shall be specified by the Board. Any subsequent references
herein to the Board shall also mean the committee if such committee has been
appointed and, unless the powers of the committee have been specifically
limited, the committee shall have all of the powers of the Board granted herein,
including, without limitation, the power to terminate or amend the Plan at any
time, subject to the terms of the Plan and any applicable limitations imposed by
law. All question of interpretations of the Plan or of any options granted under
the Plan (an "Option") shall be determined by the Board, and such determinations
shall be final and binding upon all persons having an interest in the Plan
and/or any Option. Options may only be non-qualified stock options, that is,
options which do not meet the requirements of section 422(b) of the Code. Any
officer of the Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.

     3. Eligibility.

        (a) Eligible Persons. The Options may be granted only to employees of
the Company who are not also officers or directors of the Company. The Board
shall, in the Board's sole discretion, determine which of such persons shall be
granted Options (an "Optionee"). An Optionee may, if he is otherwise eligible,
be granted additional Options.

    4. Shares Subject to Option. The maximum number of shares which may be
issued under the Plan shall be 500,000 shares of the Company's authorized but
unissued common stock and/or common stock which are treasury shares, subject to
adjustment as provided in paragraph 7. In the event that any outstanding Option
for any reason expires or is terminated and/or shares subject to repurchase are
repurchased by the Company, the shares of common stock allocable to the
unexercised portion of such Option, or such repurchased shares, may again be
subjected to an Option.

    5. Time for Granting Options. All Options shall be granted, if at all,
within ten (10) years from March 16, 1993.



                                        1
   2

    6. Terms, Conditions and Form of Options. Subject to the provisions of
the Plan, the Board shall determine for each Option (which need not be
identical) the number of shares for which the Option shall be granted, the
Option price of the Option, the exercisability of the Option, and all other
terms and conditions of the Option not inconsistent with the Plan. Options
granted pursuant to the Plan shall be evidenced by written agreements specifying
the number of shares covered thereby, in such form as the Board shall from time
to time establish, and shall comply with and be subject to the following terms
and conditions:

        (a) Exercise Price. The exercise price per share for an Option shall be
not less than the fair market value, as determined by the Board, of the shares
of common stock of the Company on the date of the granting of the Option.

        (b) Exercise Period of Options. The Board shall have the power to set
the time or times within which each Option shall be exercisable or the event or
events upon the occurrence of which all or a portion of each Option shall be
exercisable and the term of each Option; provided, however, that no Option shall
be exercisable after the expiration of ten (10) years from the date such Option
is granted.

        (c) Payment of Exercise Price. Payment of the exercise price for the
number of shares being purchased shall be made (1) in cash, by check, or cash
equivalent, (2) by tender to the Company of shares of the Company's stock which
(a) either have been owned by the Optionee for more than six (6) months or were
not acquired, directly or indirectly, from the Company, and (b) have a value, as
determined by the Board (but without regard to any restrictions on
transferability applicable to such stock by reason of federal or state
securities laws or agreements with an underwriter for the Company), not less
than the option price, (3) by the assignment of the proceeds of a sale of some
or all of the shares being acquired upon the exercise of an Option (including,
without limitation, through an exercise complying with the provision so
Regulation T as promulgated from time to time by the Board of Governors of the
Federal Reserve System), or (4) by such other consideration (including, without
limitation, the Optionee's promissory note) as the Board may approve at the time
the option is granted. In the event the Board permits the exercise of an Option
in whole or in part by means of the Optionee's promissory note, the Board shall
determine the provisions of such note; provided, however, that the note shall
not represent more than ninety percent (90%) of the option price, the principal
shall be due and payable not more than five (5) years after the Option is
exercised, and interest shall be payable at least annually and be at least equal
to the minimum interest rate necessary to avoid imputed interest pursuant to all
applicable sections of the Code.

            (x) Unless otherwise provided by the Board, in the event the Company
at any time is subject to the regulations promulgated by the Board of Governors
of the Federal Reserve System or any other governmental entity affecting the
extension of credit in connection with the Company's securities, any promissory
note shall comply with such applicable regulations, and the Optionee shall pay
the unpaid principal and accrued interest, if any, to the extent necessary to
comply with such applicable regulations.

            (y) The Company reserves, at any and all times, the right, in the
Company's sole and absolute discretion, to establish, decline to approve and/or
terminate any



                                        2
   3

program and/or procedures for the exercise of Options by means of an assignment
of the proceeds of a sale of some or all of the shares of stock to be acquired
upon such exercise.

        (d) Options Non-Transferable. During the lifetime of the Optionee, the
Option shall be exercisable only by the Optionee. No Option shall be assignable
or transferable by the Optionee, except by will or by the laws of descent and
distribution.

        (e) Standard Option Terms. Unless otherwise provided for by the Board in
the grant of an Option, all Options shall comply with and be subject to the
terms and conditions set forth in the form of stock option agreement attached
hereto as Exhibit A and incorporated herein by reference.

     7. Effect of Change in Stock Subject to Plan. Appropriate adjustments shall
be made in the number and class of shares of stock subject to the Plan and to
any outstanding Options and in the option price of any outstanding Options in
the event of a stock dividend, stock split, reverse stock split,
recapitalization, combination, reclassification, or like change in the capital
structure of the Company.

     8. Termination or Amendment of Plan. The Board, including any duly
appointed committee of the Board, may terminate or amend the Plan at any time.
In any event, no amendment may adversely affect any then outstanding Options or
any unexercised portions thereof, without the consent of the Optionee.


     IN WITNESS WHEREOF, the undersigned Secretary of the Company certifies
that the foregoing Consilium, Inc. 1993 Stock Option Plan was duly adopted by
the Board of Directors of the Company on the 16th day of March, 1993.





                                        ----------------------------------------



                                        3
   4
                             AMENDMENT NO. 1 TO THE
                                 CONSILIUM, INC.
                             1993 STOCK OPTION PLAN

               CONSILIUM, INC., having established the Consilium, Inc. 1993
Stock Option Plan (the "Plan"), hereby amends the Plan, effective as of December
11, 1998, as follows:

     1.   Section 1 of the Plan is hereby amended in its entirety as follows:
                   

               1. Term of Plan. In connection with the merger (the "Merger") on
          December 11, 1998 of Consilium, Inc. (the "Company") and Pennsylvania
          Acquisition Sub, Inc., ("Pennsylvania") a Delaware corporation and a
          wholly-owned subsidiary of Applied Materials, Inc. ("AMAT"), options
          ("Options") previously granted to optionees ("Optionees") under the
          Consilium, Inc. 1993 Stock Option Plan (the "Plan") that remain
          outstanding as of December 11, 1998 (the "Outstanding Options"), have
          been modified pursuant to the Agreement and Plan of Merger and
          Reorganization dated as of October 12, 1998 (the "Merger Agreement"),
          among the Company, Pennsylvania and AMAT, so as to be exercisable only
          into shares of common stock of AMAT, par value $0.01 per share (the
          "Stock"), all as set forth in such Merger Agreement and subject to its
          terms and conditions. Effective as of December 11, 1998, except with
          respect to the Outstanding Options, the Plan is terminated.
          Accordingly, no shares of Stock remain available for future grant
          under the Plan, other than pursuant to the Outstanding Options.

     2.   Section 2 of the Plan is hereby amended in its entirety to read as
          follows:

               2. Administration. The Plan shall be administered by the Stock
          Option and Compensation Committee of the Board of Directors of AMAT.
          As used throughout this Plan, the "Committee" and the "Board" shall
          mean the Stock Option and Compensation Committee of the Board of
          Directors of AMAT.

     3.   Section 3 of the Plan is hereby amended in its entirety to read as
          follows:

               3. No Further Option Grants. Effective December 11, 1998, except
          with respect to the Outstanding Options, the Plan is terminated.
          Accordingly, no further Options shall be granted under the Plan.
          Optionees holding Outstanding Options may continue to exercise such
          Outstanding Options in accordance with their terms, subject to the
          terms and conditions of the Merger Agreement.

     4.   The first sentence of Section 4 of the Plan is hereby replaced with
          the following:

          AMAT has reserved such number of shares of Stock as are necessary to 
          satisfy the Outstanding Options described in Section 1 of the Plan.



                                        1
   5

     5.   Section 8 of the Plan is hereby amended by adding the following
          sentence to the end thereof to read as follows:

          Except with respect to the Outstanding Options, the Plan shall
          terminate effective as of December 11, 1998.

          IN WITNESS WHEREOF, Consilium, Inc., by the officer identified below,
who has been duly authorized by the Board of Directors of the Company, has
executed this Amendment No. 1 on the date indicated below.


                                        CONSILIUM, INC.


                                        By:
                                           -------------------------------------
                                        Title:
                                              ----------------------------------
                                        Date:
                                             -----------------------------------



                                        2
   1
                                                                     EXHIBIT 4.3

                                 CONSILIUM, INC.
                              AMENDED AND RESTATED
                    1990 OUTSIDE DIRECTORS STOCK OPTION PLAN


           1. Purpose. The Consilium, Inc. 1990 Outside Directors Stock Option
Plan (the "Prior Plan") was established effective as of January 17, 1990 (the
"Effective Date") to create additional incentive for the outside directors of
Consilium, Inc. and any successor corporation thereto (collectively referred to
as the "Company") to promote the financial success and progress of the Company.
The Prior Plan was amended and restated effective as of April 29, 1992 to
provide for annual grants of immediately exercisable options; and was amended
and restated again as of February 9, 1993 in the form set forth herein (the
"Plan").

           2. Administration. The Plan shall be administered by the Board of
Directors of the Company (the "Board") and/or by a duly appointed committee of
the Board having such powers as shall be specified by the Board. Any subsequent
references to the Board shall also mean the committee if such committee has been
appointed and, unless the powers of the committee have been specifically
limited, the committee shall have all of the powers of the Board granted herein,
including, without limitation, the power to terminate or amend the Plan at any
time, subject to the terms of the Plan and any applicable limitations imposed by
law. All questions of interpretation of the Plan or of any options granted under
the Plan (an "Option") shall be determined by the Board, and such determinations
shall be final and binding upon all persons having an interest in the Plan
and/or any Option. All Options shall be nonqualified stock options. Any officer
of the Company shall have the authority to act on behalf of the Company with
respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.

           3. Eligibility and Type of Option. The Options may be granted only to
directors of the Company who are not employees of the Company or any present or
future parent and/or subsidiary corporations of the Company. Options granted to
eligible directors of the Company ("Outside Directors") shall be nonqualified
stock options; that is, options which are not treated as having been granted
under section 422(b) of the Internal Revenue Code of 1986, as amended (the
"Code"). For purposes of the Plan, a parent corporation and a subsidiary
corporation shall be as defined in sections 424(e) and 424(f) of the Code.

           4. Shares Subject to Option. Options shall be options for the
purchase of the authorized but unissued common stock of the Company (the
"Stock"), subject to adjustment as provided in paragraph 8 below. The maximum
number of shares of Stock which may be issued under the Plan shall be 150,000
shares. In the event that any outstanding Option for any reason expires or is
terminated and/or shares of Stock subject to repurchase are repurchased by the
Company, the shares allocable to the unexercised portion of such Option, or such
repurchased shares, may again be subjected to an Option. Notwithstanding the
foregoing, any such shares shall be made subject to a new Option only if the
grant of such new Option and the issuance of such shares pursuant to such new
Option would not cause the Plan or any Option granted under 



                                        1
   2

the Plan to contravene Rule 16b-3 under the Securities Exchange Act of 1934, as
amended, and as amended from time to time or any successor rule or regulation
("Rule 16b-3").

           5. Time for Granting Options. All Options shall be granted, if at
all, within ten (10) years from the Effective Date.

           6. Terms, Conditions and Forms of Options. Options granted pursuant
to the Plan shall be evidenced by written agreements specifying the number of
shares of Stock covered thereby, in substantially the two forms attached hereto
as Exhibit A and Exhibit B, respectively, and incorporated herein by reference
(the "Option Agreements"), and shall comply with and be subject to the following
terms and conditions:

            (a) Automatic Grant of Options. Subject to execution by each Outside
Director of the appropriate Option Agreement:

                (i) Each Outside Director who first serves on the Board after
the Effective Date shall be granted an Option to purchase fifteen thousand
(15,000) shares of Stock upon the first date of service.

                (ii) In addition to any other grant made to an Outside Director
under the Plan, an Outside Director shall be granted an immediately exercisable
Option to purchase shares of Stock in an amount equal to two thousand five
hundred (2,500) times the number of full years of service of such Outside
Director during the period from October 31, 1990 through the date of the 1993
Annual Meeting of Stockholders.

                (iii) In addition to any other grant made to an Outside Director
under the Plan, an Outside Director shall be granted an immediately exercisable
Option to purchase two thousand five hundred (2,500) shares of Stock on the date
of the first meeting of the Board of Directors in each successive fiscal year
commencing in fiscal 1994, provided that if an Outside Director has served less
than one full year at the date of grant, such director's grant will be pro-rated
to the number of shares (rounded to the nearest hundred shares) equal to 2,500
divided by twelve and multiplied by the number of full months of service by such
director on the date of grant.

                (iv) Notwithstanding the foregoing, any Outside Director may
elect not to receive an Option granted pursuant to this paragraph 6(a) by
delivering written notice of such election to the Board (1) in the case of an
initial Option grant, no later than the date upon which such Outside Director
commences service on the Board, or (2) in the case of an Option grant pursuant
to paragraph 6(a)(iii), no later than six (6) months prior to the date of such
first meeting of the fiscal year.

            (b) Option Price. The option price per share for an Option shall be
the fair market value, as determined by the average of the high and low prices
of a sale of a share of Stock on the National Association of Securities Dealers
Automated Quotations system (the "NASDAQ System") or other national securities
exchange, on the date of the granting of the Option. If the date of the granting
of the Option does not fall on a day on which the Company's Stock is trading on
the NASDAQ System or other national securities exchange, the date on which the
option price per share shall be established shall be the last day on which the



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Company's Stock was so traded prior to the date of the granting of the Option.
Notwithstanding the foregoing, an Option may be granted with an exercise price
lower than the minimum exercise price set forth above if such Option is granted
pursuant to an assumption or substitution for another option in a manner
qualifying with the provisions of section 424(a) of the Code.

            (c) Exercise Period of Options. Any Option granted hereunder shall
be exercisable for a term of ten (10) years.

            (d) Payment of Option Price. Payment of the option price for the
number of shares of Stock being purchased pursuant to any Option shall be made
in cash, by check or in cash equivalent.

            (e) Shareholder Approval. Any Option granted pursuant to the Plan
under section 6(a)(ii) or (iii) shall be subject to obtaining shareholder
approval of the Plan at the first annual meeting of shareholders after the
adoption of such provision.

         7. Authority to Vary Terms. The Board shall have the authority from
time to time to vary the terms of the Option Agreements, either in connection
with the grant of an individual Option or in connection with the authorization
of a new standard form or forms; provided, however, that the terms and
conditions of such revised or amended form or forms of stock option agreement
shall be in accordance with the terms of the Plan. Such authority shall include,
but not by way of limitation, the authority to grant Options which are
immediately exercisable subject to the Company's right to repurchase any
unvested shares of Stock acquired by the Optionee on exercise of an Option in
the event such Optionee's service as a director of the Company is terminated for
any reason.

         8. Effect of Change in Stock Subject to Plan. Appropriate adjustments
shall be made in the number and class of Stock subject to the Plan and to any
outstanding Options and in the option price of any outstanding Options in the
event of a stock dividend, stock split, reverse stock split, combination,
reclassification, or like change in the capital structure of the Company.

         9. Transfer of Control. A "Transfer of Control" shall be deemed to have
occurred in the event any of the following occurs with respect to the Company.

            (a) the sale or exchange by the shareholders of the Company of more
than fifty percent (50%) of the voting stock of the Company where the
shareholders of the Company before such sale or exchange do not retain, directly
or indirectly, at least a majority of the beneficial interest in the voting
stock of the Company;

            (b) a merger in which the Company is not the surviving corporation;
or 

            (c) the sale of all or substantially all of the Company's assets
(other than a sale or transfer to a subsidiary of the Company). In the event of
a Transfer of Control, any unexercisable and/or unvested portion of the
outstanding Options shall be immediately exercisable and vested as of a date
prior to the Transfer of Control, as the Board so determines. The exercise
and/or vesting of any Option that was permissible solely by reason of this
paragraph 9 shall be conditioned upon the



                                        3
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consummation of the Transfer of Control. Any Options which are not exercised as
of the date of the Transfer of Control shall terminate effective as of the date
of the Transfer of Control.

           10. Options Non-Transferable. During the lifetime of the Optionee,
the Option shall be exercisable only by the Optionee. No Option shall be
assignable or transferable by the Optionee, except by will or by the laws of
descent and distribution.

           11. Termination or Amendment of Plan. The Board, including any duly
appointed committee of the Board, may terminate or amend the Plan at any time;
provided, however, that without the approval of the stockholders of the Company,
there shall be (a) no increase in the total number of shares of Stock covered by
the Plan (except by operation of the provisions of paragraph 8 above) and (b) no
expansion in the class of persons eligible to receive Options; and provided
further, that the provisions of the Plan addressing eligibility to participate
in the Plan and the amount, price and timing of grants of Options shall not be
amended more than once every six (6) months, other than to comport to changes in
the Code, or the rules thereunder. In addition to the foregoing, the approval of
the Company's stockholders shall be sought for any amendment to the Plan for
which the Board deems stockholder approval necessary in order to comply with
Rule 16b-3. In any event, no termination or amendment may adversely affect any
then outstanding Option or any unexercised portion thereof, without the consent
of the Optionee.

           12. Options Granted Under the Prior Plan. Any Option previously
granted by the Company under the Prior Plan shall continue to be governed under
the terms of the Prior Plan and the terms of the agreement documenting that
Option.

        The undersigned Secretary of the Company hereby certifies that the
foregoing is the Amended and Restated Consilium, Inc. 1990 Outside Directors
Stock Option Plan as adopted by the Board on February 9, 1993 and amended by the
Board through December 16, 1997.



                                        ----------------------------------------
                                        Secretary



                                        4
   5

                             AMENDMENT NO. 1 TO THE
                                 CONSILIUM, INC.
                              AMENDED AND RESTATED
                    1990 OUTSIDE DIRECTORS STOCK OPTION PLAN

               CONSILIUM, INC., having established the Consilium, Inc. Amended
and Restated 1990 Outside Directors Stock Option Plan (the "Plan"), hereby
amends the Plan, effective as of December 11, 1998, as follows:

        1.  Section 1 of the Plan is hereby amended in its entirety as follows:
                    
                        1. Term of Plan. In connection with the merger (the
            "Merger") on December 11, 1998 of Consilium, Inc. (the "Company")
            and Pennsylvania Acquisition Sub, Inc., ("Pennsylvania") a Delaware
            corporation and a wholly-owned subsidiary of Applied Materials, Inc.
            ("AMAT"), options ("Options") previously granted to outside
            directors of the Company ("Outside Directors") under the Consilium,
            Inc. Amended and Restated 1990 Outside Directors Stock Option Plan
            (the "Plan") that remain outstanding as of December 11, 1998 (the
            "Outstanding Options"), have been modified pursuant to the Agreement
            and Plan of Merger and Reorganization dated as of October 12, 1998
            (the "Merger Agreement"), among the Company, Pennsylvania and AMAT,
            so as to be exercisable only into shares of common stock of AMAT,
            par value $0.01 per share (the "Stock"), all as set forth in such
            Merger Agreement and subject to its terms and conditions. Effective
            as of December 11, 1998, except with respect to the Outstanding
            Options, the Plan is terminated. Accordingly, no shares of Stock
            remain available for future grant under the Plan, other than
            pursuant to the Outstanding Options.

        2.  Section 2 is hereby amended in its entirety to read as follows:

                        2. Administration. The Plan shall be administered by the
            Stock Option and Compensation Committee of the Board of Directors of
            AMAT. As used throughout this Plan, the "Board" shall mean the Stock
            Option and Compensation Committee of the Board of Directors of AMAT.

        3.  Section 3 is hereby amended in its entirety to read as follows:
            
                        3. No Further Option Grants. Effective December 11,
            1998, except with respect to the Outstanding Options, the Plan is
            terminated. Accordingly, no further Options shall be granted under
            the Plan. Optionees holding Outstanding Options may continue to
            exercise such Outstanding Options in accordance with their terms,
            subject to the terms and conditions of the Merger Agreement.



                                        1
   6
        4.  The first two sentences of Section 4 are hereby replaced with the
            following:

            AMAT has reserved such number of shares of Stock as are necessary to
            satisfy the Outstanding Options described in Section 1 of the Plan.

        5.  Section 11 is hereby amended by adding the following sentence to the
            end thereto to read as follows:

            Except with respect to the Outstanding Options, the Plan shall
            terminate effective as of December 11, 1998.

            IN WITNESS WHEREOF, Consilium, Inc., by the officer identified
below, who has been duly authorized by the Board of Directors of the Company,
has executed this Amendment No. 1 on the date indicated below.
                                          


                                        CONSILIUM, INC.
                                       
                                        By:
                                           -------------------------------------
                                        Title:
                                              ----------------------------------
                                        Date:
                                             -----------------------------------



                                        2
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                                                                     EXHIBIT 4.4

                                 CONSILIUM, INC.
                       NONSTATUTORY STOCK OPTION AGREEMENT

            THIS NONSTATUTORY STOCK OPTION AGREEMENT (the "OPTION AGREEMENT") is
made and entered into as of May 19, 1997, by and between Consilium, Inc. and
Laurence R. Hootnick (the "OPTIONEE").

               The Company has granted to the Optionee an option to purchase
certain shares of Stock upon the terms and conditions set forth in this Option
Agreement (the "OPTION"). This Option has not been granted pursuant to any stock
option plan of the Company.

            1. DEFINITIONS AND CONSTRUCTION.

               1.1 DEFINITIONS. Whenever used herein, the following terms shall
have their respective meanings set forth below:

                   (a) "DATE OF OPTION GRANT" means May 19, 1997.

                   (b) "NUMBER OF OPTION SHARES" means 25,000 shares of Stock,
as adjusted from time to time pursuant to Section 9. 

                   (c) "EXERCISE PRICE" means $2.625 per share of Stock, as
adjusted from time to time pursuant to Section 9.

                   (d) "INITIAL VESTING DATE" means the date occurring one (1)
month after the Date of Option Grant.

                   (e) "VESTED RATIO" means, except as otherwise provided
herein, on any relevant date, the ratio determined as follows:

Vested ------ Ratio ----- Prior to Initial Vesting Date 0 On Initial Vesting Date, provided the 1/48 Optionee's Service is continuous from the Date of Option Grant until the Initial Vesting Date Plus ---- For each full month of the Optionee's 1/48 continuous Service from the Initial Vesting Date until the Vested Ratio equals 1/1, an additional
1 2 (f) "OPTION EXPIRATION DATE" means the date ten (10) years after the Date of Option Grant. (g) "BOARD" means the Board of Directors of the Company. "Board" shall also mean the Compensation Committee or other committee of the Board duly authorized to administer this Option Agreement and having such powers as shall be specified by the Board. Unless the powers of the Committee have been specifically limited, the Committee shall have all of the powers of the Board granted herein. (h) "CODE" means the Internal Revenue Code of 1986, as amended, and any applicable regulations promulgated thereunder. (i) "COMPANY" means Consilium, Inc., a Delaware corporation, or any successor corporation thereto. (j) "CONSULTANT" means any person, including an advisor, engaged by a Participating Company to render services other than as an Employee or a Director. (k) "DIRECTOR" means a member of the Board or of the board of directors of any other Participating Company. (l) "DISABILITY" means the permanent and total disability of the Optionee within the meaning of Section 22(e)(3) of the Code. (m) "EMPLOYEE" means any person treated as an employee (including an officer or a Director who is also treated as an employee) in the records of a Participating Company; provided, however, that neither service as a Director nor payment of a director's fee shall be sufficient to constitute employment for this purpose. (n) "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended. (o) "FAIR MARKET VALUE" means, as of any date, the value of a share of Stock or other property as determined by the Board, in its sole discretion, or by the Company, in its sole discretion, if such determination is expressly allocated to the Company herein, subject to the following: (i) If, on such date, there is a public market for the Stock, the Fair Market Value of a share of Stock shall be the closing sale price of a share of Stock (or the mean of the closing bid and asked prices of a share of Stock if the Stock is so quoted instead) as quoted on the Nasdaq National Market, the Nasdaq Small-Cap Market or such other national or regional securities exchange or market system constituting the primary market for the Stock, as reported in the Wall Street Journal or such other source as the Company deems reliable. If the relevant date does not fall on a day on which the Stock has traded on such securities exchange or market system, the date on which the Fair Market Value shall be established shall be the last day on which the Stock was so traded prior to the relevant date, or such other appropriate day as shall be determined by the Board, in its sole discretion. 2 3 (ii) If, on such date, there is no public market for the Stock, the Fair Market Value of a share of Stock shall be as determined by the Board without regard to any restriction other than a restriction which, by its terms, will never lapse. (p) "PARENT CORPORATION" means any present or future "parent corporation" of the Company, as defined in Section 424(e) of the Code. (q) "PARTICIPATING COMPANY" means the Company or any Parent Corporation or Subsidiary Corporation. (r) "PARTICIPATING COMPANY GROUP" means, at any point in time, all corporations collectively which are then Participating Companies. (s) "RULE 16b-3" means Rule 16b-3 under the Exchange Act, as amended from time to time, or any successor rule or regulation. (t) "SECURITIES ACT" means the Securities Act of 1933, as amended. (u) "SERVICE" means the Optionee's employment or service with the Participating Company Group, whether in the capacity of an Employee, a Director or a Consultant. The Optionee's Service shall not be deemed to have terminated merely because of a change in the capacity in which the Optionee renders Service to the Participating Company Group or a change in the Participating Company for which the Optionee renders such Service, provided that there is no interruption or termination of the Optionee's Service. The Optionee's Service shall be deemed to have terminated either upon an actual termination of Service or upon the corporation for which the Optionee performs Service ceasing to be a Participating Company. Subject to the foregoing, the Company, in its sole discretion, shall determine whether the Optionee's Service has terminated and the effective date of such termination. (v) "STOCK" means the common stock, par value $0.01, of the Company, as adjusted from time to time in accordance with Section 9. (w) "SUBSIDIARY CORPORATION" means any present or future "subsidiary corporation" of the Company, as defined in Section 424(f) of the Code. 1.2 CONSTRUCTION. Captions and titles contained herein are for convenience only and shall not affect the meaning or interpretation of any provision of this Option Agreement. Except when otherwise indicated by the context, the singular shall include the plural and the plural shall include the singular. Use of the term "or" is not intended to be exclusive, unless the context clearly requires otherwise. 2. TAX STATUS OF OPTION. This Option is intended to be a nonstatutory stock option and shall not be treated as an incentive stock option within the meaning of Section 422(b) of the Code. 3. ADMINISTRATION. All questions of interpretation concerning this Option Agreement shall be determined by the Board. All determinations by the Board shall be final and binding upon all persons having an interest in the Option. Any officer of a Participating 3 4 Company shall have the authority to act on behalf of the Company with respect to any matter, right, obligation, or election which is the responsibility of or which is allocated to the Company herein, provided the officer has apparent authority with respect to such matter, right, obligation, or election. 4. EXERCISE OF THE OPTION. 4.1 RIGHT TO EXERCISE. Except as otherwise provided herein, the Option shall be exercisable on and after the Initial Vesting Date and prior to the termination of the Option (as provided in Section 6) in an amount not to exceed the Number of Option Shares multiplied by the Vested Ratio less the number of shares previously acquired upon exercise of the Option. In no event shall the Option be exercisable for more shares than the Number of Option Shares. 4.2 METHOD OF EXERCISE. Exercise of the Option shall be by written notice to the Company which must state the election to exercise the Option, the number of whole shares of Stock for which the Option is being exercised and such other representations and agreements as to the Optionee's investment intent with respect to such shares as may be required pursuant to the provisions of this Option Agreement. The written notice must be signed by the Optionee and must be delivered in person, by certified or registered mail, return receipt requested, by confirmed facsimile transmission, or by such other means as the Company may permit, to the Chief Financial Officer of the Company, or other authorized representative of the Participating Company Group, prior to the termination of the Option as set forth in Section 6, accompanied by full payment of the aggregate Exercise Price for the number of shares of Stock being purchased. The Option shall be deemed to be exercised upon receipt by the Company of such written notice and the aggregate Exercise Price. 4.3 PAYMENT OF EXERCISE PRICE. (a) FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise provided below, payment of the aggregate Exercise Price for the number of shares of Stock for which the Option is being exercised shall be made (i) in cash, by check, or cash equivalent, (ii) by tender to the Company of whole shares of Stock owned by the Optionee having a Fair Market Value (as determined by the Company without regard to any restrictions on transferability applicable to such stock by reason of federal or state securities laws or agreements with an underwriter for the Company) not less than the aggregate Exercise Price, (iii) by means of a Cashless Exercise, as defined in Section 4.3(c), or (iv) by any combination of the foregoing. (b) TENDER OF STOCK. Notwithstanding the foregoing, the Option may not be exercised by tender to the Company of shares of Stock to the extent such tender of Stock would constitute a violation of the provisions of any law, regulation or agreement restricting the redemption of the Company's stock. The Option may not be exercised by tender to the Company of shares of Stock unless such shares either have been owned by the Optionee for more than six (6) months or were not acquired, directly or indirectly, from the Company. (c) CASHLESS EXERCISE. A "CASHLESS EXERCISE" means the assignment in a form acceptable to the Company of the proceeds of a sale or loan with respect to some or all of the shares of Stock acquired upon the exercise of the Option pursuant to a program or 4 5 procedure approved by the Company (including, without limitation, through an exercise complying with the provisions of Regulation T as promulgated from time to time by the Board of Governors of the Federal Reserve System). The Company reserves, at any and all times, the right, in the Company's sole and absolute discretion, to decline to approve or terminate any such program or procedure. 4.4 TAX WITHHOLDING. At the time the Option is exercised, in whole or in part, or at any time thereafter as requested by the Company, the Optionee hereby authorizes withholding from payroll and any other amounts payable to the Optionee, and otherwise agrees to make adequate provision for (including by means of a Cashless Exercise to the extent permitted by the Company), any sums required to satisfy the federal, state, local and foreign tax withholding obligations of the Participating Company Group, if any, which arise in connection with the Option, including, without limitation, obligations arising upon (i) the exercise, in whole or in part, of the Option, (ii) the transfer, in whole or in part, of any shares acquired upon exercise of the Option, (iii) the operation of any law or regulation providing for the imputation of interest, or (iv) the lapsing of any restriction with respect to any shares acquired upon exercise of the Option. The Optionee is cautioned that the Option is not exercisable unless the tax withholding obligations of the Participating Company Group are satisfied. Accordingly, the Optionee may not be able to exercise the Option when desired even though the Option is vested, and the Company shall have no obligation to issue a certificate for such shares or release such shares from any escrow provided for herein. 4.5 CERTIFICATE REGISTRATION. Except in the event the Exercise Price is paid by means of a Cashless Exercise, the certificate for the shares as to which the Option is exercised shall be registered in the name of the Optionee, or, if applicable, in the names of the heirs of the Optionee. 4.6 RESTRICTIONS ON GRANT OF THE OPTION AND ISSUANCE OF SHARES. The grant of the Option and the issuance of shares of Stock upon exercise of the Option shall be subject to compliance with all applicable requirements of federal, state or foreign law with respect to such securities. The Option may not be exercised if the issuance of shares of Stock upon exercise would constitute a violation of any applicable federal, state or foreign securities laws or other law or regulations or the requirements of any stock exchange or market system upon which the Stock may then be listed. In addition, the Option may not be exercised unless (i) a registration statement under the Securities Act shall at the time of exercise of the Option be in effect with respect to the shares issuable upon exercise of the Option or (ii) in the opinion of legal counsel to the Company, the shares issuable upon exercise of the Option may be issued in accordance with the terms of an applicable exemption from the registration requirements of the Securities Act. THE OPTIONEE IS CAUTIONED THAT THE OPTION MAY NOT BE EXERCISED UNLESS THE FOREGOING CONDITIONS ARE SATISFIED. ACCORDINGLY, THE OPTIONEE MAY NOT BE ABLE TO EXERCISE THE OPTION WHEN DESIRED EVEN THOUGH THE OPTION IS VESTED. Questions concerning this restriction should be directed to the Chief Financial Officer of the Company. The inability of the Company to obtain from any regulatory body having jurisdiction the authority, if any, deemed by the Company's legal counsel to be necessary to the lawful issuance and sale of any shares subject to the Option shall relieve the Company of any liability in respect of the failure to issue or sell such shares as to which such requisite authority shall not have been obtained. As a condition to the exercise of the Option, the 5 6 Company may require the Optionee to satisfy any qualifications that may be necessary or appropriate, to evidence compliance with any applicable law or regulation and to make any representation or warranty with respect thereto as may be requested by the Company. 4.7 FRACTIONAL SHARES. The Company shall not be required to issue fractional shares upon the exercise of the Option. 5. NONTRANSFERABILITY OF THE OPTION. The Option may be exercised during the lifetime of the Optionee only by the Optionee or the Optionee's guardian or legal representative and may not be assigned or transferred in any manner except by will or by the laws of descent and distribution. Following the death of the Optionee, the Option, to the extent provided in Section 7, may be exercised by the Optionee's legal representative or by any person empowered to do so under the deceased Optionee's will or under the then applicable laws of descent and distribution. 6. TERMINATION OF THE OPTION. The Option shall terminate and may no longer be exercised on the first to occur of (a) the Option Expiration Date, (b) the last date for exercising the Option following termination of the Optionee's Service as described in Section 7, or (c) a Transfer of Control to the extent provided in Section 8. 7. EFFECT OF TERMINATION OF SERVICE. 7.1 OPTION EXERCISABILITY. (a) DISABILITY. If the Optionee's Service with the Participating Company Group is terminated because of the Disability of the Optionee, the Option, to the extent unexercised and exercisable on the date on which the Optionee's Service terminated, may be exercised by the Optionee (or the Optionee's guardian or legal representative) at any time prior to the expiration of twelve (12) months after the date on which the Optionee's Service terminated, but in any event no later than the Option Expiration Date. (b) DEATH. If the Optionee's Service with the Participating Company Group is terminated because of the death of the Optionee, the Option, to the extent unexercised and exercisable on the date on which the Optionee's Service terminated, may be exercised by the Optionee's legal representative or other person who acquired the right to exercise the Option by reason of the Optionee's death at any time prior to the expiration of twelve (12) months after the date on which the Optionee's Service terminated, but in any event no later than the Option Expiration Date. The Optionee's Service shall be deemed to have terminated on account of death if the Optionee dies within three (3) months after the Optionee's termination of Service. (c) OTHER TERMINATION OF SERVICE. If the Optionee's Service with the Participating Company Group terminates for any reason, except Disability or death, the Option, to the extent unexercised and exercisable by the Optionee on the date on which the Optionee's Service terminated, may be exercised by the Optionee within three (3) months (or such other longer period of time as determined by the Board, in its sole discretion) after the date on which the Optionee's Service terminated, but in any event no later than the Option Expiration Date. 6 7 7.2 EXTENSION IF EXERCISE PREVENTED BY LAW. Notwithstanding the foregoing, if the exercise of the Option within the applicable time periods set forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option shall remain exercisable until three (3) months after the date the Optionee is notified by the Company that the Option is exercisable, but in any event no later than the Option Expiration Date. 7.3 EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(b). Notwithstanding the foregoing, if a sale within the applicable time periods set forth in Section 7.1 of shares acquired upon the exercise of the Option would subject the Optionee to suit under Section 16(b) of the Exchange Act, the Option shall remain exercisable until the earliest to occur of (i) the tenth (10th) day following the date on which a sale of such shares by the Optionee would no longer be subject to such suit, (ii) the one hundred and ninetieth (190th) day after the Optionee's termination of Service, or (iii) the Option Expiration Date. 7.4 LEAVE OF ABSENCE. For purposes of Section 7.1, the Optionee's Service with the Participating Company Group shall not be deemed to terminate if the Optionee takes any military leave, sick leave, or other bona fide leave of absence approved by the Company of ninety (90) days or less. In the event of a leave of absence in excess of ninety (90) days, the Optionee's Service shall be deemed to terminate on the ninety-first (91st) day of such leave unless the Optionee's right to return to Service with the Participating Company Group remains guaranteed by statute or contract. Notwithstanding the foregoing, unless otherwise designated by the Company (or required by law), a leave of absence shall not be treated as Service for purposes of determining the Optionee's Vested Ratio. 8. TRANSFER OF CONTROL. 8.1 DEFINITIONS. (a) An "OWNERSHIP CHANGE EVENT" shall be deemed to have occurred if any of the following occurs with respect to the Company: (i) the direct or indirect sale or exchange in a single or series of related transactions by the stockholders of the Company of more than fifty percent (50%) of the voting stock of the Company; (ii) a merger or consolidation in which the Company is a party; (iii) the sale, exchange, or transfer of all or substantially all of the assets of the Company; or (iv) a liquidation or dissolution of the Company. (b) A "TRANSFER OF CONTROL" shall mean an Ownership Change Event or a series of related Ownership Change Events (collectively, the "TRANSACTION") wherein the stockholders of the Company immediately before the Transaction do not retain immediately after the Transaction, in substantially the same proportions as their ownership of shares of the Company's voting stock immediately before the Transaction, direct or indirect beneficial ownership of more than fifty percent (50%) of the total combined voting power of the 7 8 outstanding voting stock of the Company or the corporation or corporations to which the assets of the Company were transferred (the "TRANSFEREE CORPORATION(S)"), as the case may be. For purposes of the preceding sentence, indirect beneficial ownership shall include, without limitation, an interest resulting from ownership of the voting stock of one or more corporations which, as a result of the Transaction, own the Company or the Transferee Corporation(s), as the case may be, either directly or through one or more subsidiary corporations. The Board shall have the right to determine whether multiple sales or exchanges of the voting stock of the Company or multiple Ownership Change Events are related, and its determination shall be final, binding and conclusive. 8.2 EFFECT OF TRANSFER OF CONTROL ON OPTION. (a) In the event of a Transfer of Control, the surviving, continuing, successor, or purchasing corporation or parent corporation thereof, as the case may be (the "ACQUIRING CORPORATION"), may either assume the Company's rights and obligations under the Option or substitute for the Option a substantially equivalent option for the Acquiring Corporation's stock. For purposes of this Section 8.2, an Option shall be deemed assumed if, following the Transfer of Control, the Option confers the right to purchase, for each share of Stock subject to the Option immediately prior to the Transfer of Control, the consideration (whether stock, cash or other securities or property) to which a holder of a share of Stock on the effective date of the Transfer of Control was entitled. In the event the Acquiring Corporation elects not to assume the Company's rights and obligations under the Option or substitute for the Option in connection with the Transfer of Control, any unexercised portion of the Option shall be immediately exercisable and vested in full as of the date ten (10) days prior to the date of the Transfer of Control. Any exercise of the Option that was permissible solely by reason of this Section 8.2 shall be conditioned upon the consummation of the Transfer of Control. The Option shall terminate and cease to be outstanding effective as of the date of the Transfer of Control to the extent that the Option is neither assumed or substituted for by the Acquiring Corporation in connection with the Transfer of Control nor exercised as of the date of the Transfer of Control. Notwithstanding the foregoing, shares acquired upon exercise of the Option prior to the Transfer of Control and any consideration received pursuant to the Transfer of Control with respect to such shares shall continue to be subject to all applicable provisions of this Option Agreement except as otherwise provided herein. Furthermore, notwithstanding the foregoing, if the corporation the stock of which is subject to the Option immediately prior to an Ownership Change Event described in Section 8.1(a)(i) constituting a Transfer of Control is the surviving or continuing corporation and immediately after such Ownership Change Event less than fifty percent (50%) of the total combined voting power of its voting stock is held by another corporation or by other corporations that are members of an affiliated group within the meaning of Section 1504(a) of the Code without regard to the provisions of Section 1504(b) of the Code, the Option shall not terminate unless the Board otherwise provides in its sole discretion. (b) Notwithstanding any provision herein to the contrary, in the event of a Transfer of Control (other than a Transfer of Control in which any unexercised portion of the Option shall be immediately exercisable and vested in full pursuant to Section 8(a) above), the Vested Ratio determined pursuant to Section 1.1(f) above shall be adjusted effective upon and following the date of the Transfer of Control by adding to the Vested Ratio as otherwise 8 9 determined pursuant to Section 1.1(f) the following fraction (provided that in no event shall the Vested Ratio exceed l/l): (i) twelve forty-eighths (12/48) if the consideration for each share of Stock received by the stockholders of the Company has a fair market value of less than fifteen dollars ($15); or (ii) thirty forty-eighths (30/48) if the consideration for each share of Stock received by the stockholders of the Company has a fair market value of at least fifteen dollars ($15) but less than eighteen dollars ($18); or (iii) thirty-six forty-eighths (36/48) if the consideration for each share of Stock received by the stockholders of the Company has a fair market value of at least eighteen dollars ($18). 9. ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE. In the event of any stock dividend, stock split, reverse stock split, recapitalization, combination, reclassification, or similar change in the capital structure of the Company, appropriate adjustments shall be made in the number, Exercise Price and class of shares of stock subject to the Option. If a majority of the shares which are of the same class as the shares that are subject to the Option are exchanged for, converted into, or otherwise become (whether or not pursuant to an Ownership Change Event) shares of another corporation (the "NEW SHARES"), the Board may unilaterally amend the Option to provide that the Option is exercisable for New Shares. In the event of any such amendment, the Number of Option Shares and the Exercise Price shall be adjusted in a fair and equitable manner, as determined by the Board, in its sole discretion. Notwithstanding the foregoing, any fractional share resulting from an adjustment pursuant to this Section 9 shall be rounded up or down to the nearest whole number, as determined by the Board, and in no event may the Exercise Price be decreased to an amount less than the par value, if any, of the stock subject to the Option. The adjustments determined by the Board pursuant to this Section 9 shall be final, binding and conclusive. 10. RIGHTS AS A STOCKHOLDER, EMPLOYEE OR CONSULTANT. The Optionee shall have no rights as a stockholder with respect to any shares covered by the Option until the date of the issuance of a certificate for the shares for which the Option has been exercised (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company). No adjustment shall be made for dividends, distributions or other rights for which the record date is prior to the date such certificate is issued, except as provided in Section 9. Nothing in this Option Agreement shall confer upon the Optionee any right to continue in the Service of a Participating Company or interfere in any way with any right of the Participating Company Group to terminate the Optionee's Service as an Employee or Consultant, as the case may be, at any time. 11. LEGENDS. The Company may at any time place legends referencing any applicable federal, state or foreign securities law restrictions on all certificates representing shares of stock subject to the provisions of this Option Agreement. The Optionee shall, at the request of the Company, promptly present to the Company any and all certificates representing 9 10 shares acquired pursuant to the Option in the possession of the Optionee in order to carry out the provisions of this Section. 12. RESTRICTIONS ON TRANSFER OF SHARES. No shares acquired upon exercise of the Option may be sold, exchanged, transferred (including, without limitation, any transfer to a nominee or agent of the Optionee), assigned, pledged, hypothecated or otherwise disposed of, including by operation of law, in any manner which violates any of the provisions of this Option Agreement, and any such attempted disposition shall be void. The Company shall not be required (a) to transfer on its books any shares which will have been transferred in violation of any of the provisions set forth in this Option Agreement or (b) to treat as owner of such shares or to accord the right to vote as such owner or to pay dividends to any transferee to whom such shares will have been so transferred. 13. BINDING EFFECT. Subject to the restrictions on transfer set forth herein, this Option Agreement shall inure to the benefit of and be binding upon the parties hereto and their respective heirs, executors, administrators, successors and assigns. 14. TERMINATION OR AMENDMENT. The Board may terminate or amend the Option at any time; provided, however, that except as provided in Section 8.2 in connection with a Transfer of Control, no such termination or amendment may adversely affect the Option or any unexercised portion hereof without the consent of the Optionee unless such termination or amendment is necessary to comply with any applicable law or government regulation. No amendment or addition to this Option Agreement shall be effective unless in writing. 15. INTEGRATED AGREEMENT. This Option Agreement constitutes the entire understanding and agreement of the Optionee and the Participating Company Group with respect to the subject matter contained herein, and there are no agreements, understandings, restrictions, representations, or warranties among the Optionee and the Participating Company Group with respect to such subject matter other than those as set forth or provided for herein, except for the provisions set forth in a change of control agreement between the Company and the Optionee, if any. To the extent contemplated herein, the provisions of this Option Agreement shall survive any exercise of the Option and shall remain in full force and effect. 16. APPLICABLE LAW. This Option Agreement shall be governed by the laws of the State of California as such laws are applied to agreements between California residents entered into and to be performed entirely within the State of California. CONSILIUM, INC. By: ------------------------------------- Title: ---------------------------------- 10 11 The Optionee represents that the Optionee is familiar with the terms and provisions of this Option Agreement and hereby accepts the Option subject to all of the terms and provisions thereof. The Optionee hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Board upon any questions arising under this Option Agreement. OPTIONEE Date: ------------------------------ -------------------------------- 11 12 AMENDMENT NO. 1 TO THE CONSILIUM, INC. NONSTATUTORY STOCK OPTION AGREEMENT CONSILIUM, INC., having entered into the Consilium, Inc. Nonstatutory Stock Option Agreement (the "Agreement") with Laurence R. Hootnick (the "Optionee") as of May 19, 1997, hereby amends the Agreement, effective as of December 11, 1998, as follows: 1. The second paragraph of the Preamble to the Agreement is hereby amended in its entirety to read as follows: Consilium, Inc. has granted to the Optionee an option to purchase certain shares of Stock upon the terms and conditions set forth in this Option Agreement (the "OPTION"). This Option has not been granted pursuant to any stock option plan of Consilium, Inc. 2. The Preamble to the Agreement is hereby amended by adding the following paragraph to the end thereof to read as follows: In connection with the merger (the "Merger") on December 11, 1998 of Consilium, Inc. (the "Consilium") and Pennsylvania Acquisition Sub, Inc., ("Pennsylvania") a Delaware corporation and a wholly-owned subsidiary of Applied Materials, Inc. (the "Company"), the portion of the Option previously granted to the Optionee under this Agreement that remains outstanding as of December 11, 1998 (the "Outstanding Option"), has been modified pursuant to the Agreement and Plan of Merger and Reorganization dated as of October 12, 1998 (the "Merger Agreement"), among Consilium, Pennsylvania and the Company, so as to be exercisable only into shares of common stock of the Company, par value $0.01 per share (the "Stock"), all as set forth in such Merger Agreement and subject to its terms and conditions. 3. Section 1.1(b) of the Agreement is hereby amended in its entirety to read as follows: (b) "NUMBER OF OPTION SHARES" means such number of shares of Stock as are necessary to satisfy the Outstanding Option described in the Preamble to this Agreement, as adjusted from time to time pursuant to Section 9. 4. Section 1.1(i) of the Agreement is hereby amended in its entirety to read as follows: 1 13 (i) "COMPANY" means Applied Materials, Inc., a Delaware corporation, or any successor corporation thereto. 5. Section 3 of the Agreement is hereby amended in its entirety to read as follows: 3. Administration. The Agreement shall be administered by the Stock Option and Compensation Committee of the Board of Directors of Applied Materials, Inc. As used throughout, this Agreement, the "Committee" and the "Board" shall mean the Stock Option and Compensation Committee of the Board of Directors of Applied Materials, Inc. IN WITNESS WHEREOF, Consilium, Inc., by the officer identified below, who has been duly authorized by the Board of Directors of Consilium, Inc. and the Optionee have executed this Amendment No. 1 on the date(s) indicated below. CONSILIUM, INC. By: ------------------------------------- Title: ---------------------------------- Date: ----------------------------------- LAURENCE R. HOOTNICK ---------------------------------------- Date: ----------------------------------- 2
   1
                                                                     EXHIBIT 5.1

                               December 15, 1998





Applied Materials, Inc.
3050 Bowers Avenue
Santa Clara, California  95054



                      Re:    Registration Statement on Form S-8



Ladies and Gentlemen:

               At your request, we are rendering this opinion in connection with
the proposed issuance pursuant to (1) the Consilium, Inc. 1996 Stock Option
Plan, as amended, (2) the Consilium, Inc. 1993 Stock Option Plan, as amended,
(3) the Consilium Inc. Amended and Restated 1990 Outside Directors Stock Option 
Plan, as amended, and (4) the Consilium, Inc. Nonstatutory Stock Option
Agreement by and between Consilium, Inc. and Laurence R. Hootnick, as amended
(collectively, the "Plans"), of up to 309,848 shares of common stock, $0.01 par
value ("Common Stock"), of Applied Materials, Inc., a Delaware corporation (the
"Company").

               We have examined instruments, documents, and records which we
deemed relevant and necessary for the basis of our opinion hereinafter
expressed. In such examination, we have assumed the following: (a) the
authenticity of original documents and the genuineness of all signatures; (b)
the conformity to the originals of all documents submitted to us as copies; and
(c) the truth, accuracy and completeness of the information, representations and
warranties contained in the records, documents, instruments and certificates we
have reviewed.

               Based on such examination, we are of the opinion that the
309,848 shares of Common Stock to be issued by the Company pursuant to the
Plans are validly authorized shares of Common Stock and, when issued in
accordance with the provisions of the Plans, will be legally issued, fully paid
and nonassessable.

               We hereby consent to the filing of this opinion as an exhibit to
this Registration Statement on Form S-8 and to the use of our name wherever it
appears in said Registration Statement. In giving such consent, we do not
consider that we are "experts" within the meaning of such term as used in the
Securities Act of 1933, as amended, or the rules and regulations of the
Securities and Exchange Commission issued thereunder, with respect to any part
of the Registration Statement, including this opinion as an exhibit or
otherwise.



                                       Very truly yours,


                                       /s/ Orrick, Herrington & Sutcliffe LLP

                                       ORRICK, HERRINGTON & SUTCLIFFE LLP



   1
                                                                   EXHIBIT 23.1

                     CONSENT OF PRICEWATERHOUSECOOPERS LLP,
                            INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in this Registration 
Statement on Form S-8 of our report dated November 19, 1997, which appears on 
page 52 of the Applied Materials, Inc. Annual Report to Stockholders which is 
incorporated by reference in its Annual Report on Form 10-K for the year ended 
October 26, 1997. We also consent to the incorporation by reference of our 
report on the Financial Statement Schedule, which appears on page 18 of such 
Annual Report on Form 10-K.



/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP
San Jose, California
December 18, 1998






   1
                                                                    EXHIBIT 24.1

                         POWER OF ATTORNEY OF DIRECTORS


KNOW BY ALL PERSONS BY THESE PRESENTS:

               Each of the undersigned directors of Applied Materials, Inc., a
Delaware corporation (the "Company"), hereby constitutes and appoints James C.
Morgan, Joseph R. Bronson and Michael K. O'Farrell and each of them with power
to act alone, his or her true and lawful attorney-in-fact, with full power of
substitution and resubstitution, for him or her and in his or her name, place
and stead, in any and all capacities, to execute a Registration Statement or
Registration Statements on Form S-8 or other appropriate form, under the
Securities Act of 1933, as amended, relating to such number of shares of Common
Stock as are necessary to satisfy the options that are to be assumed by the
Company and which were granted under the Consilium, Inc. 1983 Stock Option Plan,
the Consilium, Inc. 1990 Outside Directors Stock Option Plan, the Consilium,
Inc. 1993 Stock Option Plan, the Consilium, Inc. 1996 Stock Option Plan, and
substituted Consilium, Inc. Stock Options and that remain outstanding as of
December 11, 1998, and any and all amendments (including post-effective
amendments) to such Registration Statements, and to file such Registration
Statements and any and all amendments thereto, with exhibits thereto, and other
documents in connection therewith, with the Securities and Exchange Commission,
granting unto said attorney-in-fact full power and authority to do and perform
each and every act and thing necessary or desirable to be done in and about the
premises, as fully to all intents and purposes, as he or she might or could do
in person, thereby ratifying and confirming all that said attorney-in-fact or
his substitute or substitutes may lawfully do or cause to be done by virtue
hereof.

               IN WITNESS WHEREOF, I have hereunto set my hand this 11th day of
December, 1998.

                                           
/s/  MICHAEL H. ARMACOST                      /s/  JAMES C. MORGAN
- ------------------------------------          ----------------------------------
        Michael H. Armacost                           James C. Morgan


/s/ DEBORAH A. COLEMAN                        /s/ DAN MAYDAN
- ------------------------------------          ----------------------------------
       Deborah A. Coleman                                Dan Maydan


/s/ HERBERT M. DWIGHT, JR.                    /s/ ALFRED J. STEIN
- ------------------------------------          ----------------------------------
       Herbert M. Dwight, Jr.                          Alfred J. Stein


/s/ PHILIP V. GERDINE                         /s/ PAUL R. LOW
- ------------------------------------          ----------------------------------
        Philip V. Gerdine                             Paul R. Low


/s/ TSUYOSHI KAWANISHI
- ------------------------------------
         Tsuyoshi Kawanishi