PRI AUTOMATION INC
8-K, 1997-11-10
SPECIAL INDUSTRY MACHINERY, NEC
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<PAGE>
 
                      SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, DC 20549


                                 ____________



                                   FORM 8-K


                                CURRENT REPORT
                    PURSUANT TO SECTION 13 OR 15(D) OF THE
                        SECURITIES EXCHANGE ACT OF 1934



Date of report (Date of earliest event reported)       October 25, 1997
                                                -------------------------------



                             PRI Automation, Inc.
- --------------------------------------------------------------------------------
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)


       Massachusetts                      0-24934                04-2495703
- --------------------------------------------------------------------------------
(STATE OR OTHER JURISDICTION            (COMMISSION             (IRS EMPLOYER
       OF INCORPORATION)                FILE NUMBER)         IDENTIFICATION NO.)
 

805 Middlesex Turnpike, Billerica, Massachusetts                     01821-3986
- --------------------------------------------------------------------------------
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                              (ZIP CODE)



Registrant's telephone number, including area code       (978) 670-4270
                                                  ------------------------------


                                Not Applicable
- --------------------------------------------------------------------------------
         (FORMER NAME OR FORMER ADDRESS, IF CHANGED SINCE LAST REPORT)
<PAGE>
 
ITEM 5.   OTHER EVENTS.

          On October 25, 1997, PRI Automation, Inc., a Massachusetts corporation
("PRI"), signed agreements (the "Agreements") to acquire Equipe Technologies,
Inc., a California corporation ("Equipe"), and two related corporations, Equipe
Japan Corporation, a Japanese corporation ("Equipe Japan"), and E-Machine, Inc.,
a California corporation ("E-Machine") (Equipe Japan and E-Machine,
collectively, the "Related Companies").

          Equipe designs, manufactures and markets precision vacuum and
atmospheric robots for the semiconductor and flat panel industries. Equipe Japan
is a distributor of Equipe's products. E-Machine is a machine shop for the
precision vacuum robot and atmospheric robot industries, and Equipe is E-
Machine's principal customer. Equipe and the Related Companies will continue to
engage in the same lines of business in which they are presently engaged after
the consummation of the transactions contemplated by the Agreements.

          PRI will acquire Equipe pursuant to an Agreement and Plan of
Reorganization dated as of October 25, 1997 (the "Merger Agreement") among PRI,
Equipe, E-Acquisition Corp., a subsidiary of PRI ("E-Acquisition"), and certain
stockholders (the "Founders") of Equipe.  A copy of the Merger Agreement is
attached hereto as Exhibit 10.19.  PRI will acquire E-Machine and Equipe Japan
(the "Related Acquisitions") pursuant to stock purchase agreements dated as of
October 25, 1997 (the "Stock Purchase Agreements") among PRI and, respectively,
the shareholders of E-Machine and the shareholders of Equipe Japan.  Copies of
the Stock Purchase Agreements are attached hereto as Exhibits 10.20 and 10.21.

          Pursuant to the Merger Agreement, E-Acquisition will merge with and
into Equipe (the "Merger") and Equipe will thereby become a wholly owned
subsidiary of PRI.  Upon consummation of the Merger, PRI will issue an aggregate
of 4,088,020 shares of common stock, par value $.01 per share, of PRI (the "PRI
Common") to the stockholders of Equipe.  Pursuant to the Stock Purchase
Agreements, PRI will issue 276,000 shares of PRI Common to the stockholders of
the Related Companies in exchange for all of the issued and outstanding capital
stock of the Related Companies.  PRI will also reserve 849,646 shares of PRI
Common for issuance to employees of Equipe and the Related Companies upon the
exercise of options to be issued (the "Issued Options") or assumed (the "Assumed
Options") by PRI in connection with the Merger and the Related Acquisitions.  As
of June 29, 1997, there were 14,570,920 shares of PRI Common issued and
outstanding.

          Each Assumed Option will be exercisable at a per share price equal to
the quotient of (a) the exercise price per share at which such option is
exercisable immediately prior to the consummation of the Merger divided by (b)
0.760372 (the "Merger Ratio").  Each Issued Option will be exercisable at an
exercise price per share equal to the last reported sale price of PRI Common as
reported by the Nasdaq National Market on the date on which the Merger is
consummated.

          Pursuant to the Agreements, the stockholders of Equipe and the
Related Companies (the "Holders") will, subject to certain limitations,
indemnify PRI for any damages by reason of or otherwise arising out of a breach
by Equipe or any Founder of a representation, warranty or covenant contained in
the Merger Agreement.

                                      -2-
<PAGE>
 
          The terms of the Agreements, including the Merger Ratio, were the
results of arm's-length negotiations between PRI, on the one hand, and the
stockholders of Equipe and the Related Companies, on the other hand.
Consummation of the Merger and the other transactions contemplated by the Merger
Agreement is conditioned upon, among other things, (a) approval of the Merger
Agreement by the stockholders of Equipe and by the stockholders of PRI, (b) the
expiration or termination of the applicable waiting period under the Hart-Scott-
Rodino Antitrust Improvements Act of 1976, as amended, and (c) consummation of
the Related Acquisitions.  Consummation of the Related Acquisitions is
conditioned upon, among other things, the consummation of the Merger.

          A copy of the press release announcing the execution of the Agreements
is attached as Exhibit 10.18 to this Current Report on Form 8-K.

          THE PRECEDING DISCUSSION IS ONLY A SUMMARY AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO THE AGREEMENTS, COPIES OF WHICH ARE INCLUDED AS
EXHIBITS 10.19, 10.20 AND 10.21 TO THIS CURRENT REPORT ON FORM 8-K AND ARE
INCORPORATED BY REFERENCE HEREIN.

ITEM 7.   FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

          (a) Financial Statements of Businesses Acquired.
              ------------------------------------------- 

          The financial statements required by Item 7(a) of Form 8-K will be
filed by amendment of this Form 8-K not later than 60 days after the date
hereof.

          (b) Pro Forma Financial Information.
              ------------------------------- 

          The pro forma financial statements required by Item 7(b) of Form 8-K
will be filed by amendment of this Form 8-K not later than 60 days after the
date hereof.
 
          (c) Exhibits.
              ---------
EXHIBIT
NUMBER                DESCRIPTION
- ---------             ------------
 
10.18                 Press Release dated October 27, 1997, entitled "PRI
                      Automation to Acquire Equipe Technologies, Inc."
 
10.19                 Agreement and Plan of Reorganization, dated as of October
                      25, 1997, among PRI Automation, Inc., E-Acquisition Corp.,
                      Equipe Technologies, Inc. and Certain Stockholders of
                      Equipe Technologies, Inc.
 
10.20                 Stock Purchase Agreement, dated as of October 25, 1997,
                      among PRI Automation, Inc. and the Shareholders of E-
                      Machine, Inc.
 
10.21                 Stock Purchase Agreement, dated as of October 25, 1997,
                      among PRI Automation, Inc. and the Shareholders of Equipe
                      Japan Corporation
 

                                      -3-
<PAGE>
 
                                  SIGNATURES

          Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                            PRI AUTOMATION, INC.



Date: November 10, 1997                     By: /s/ Stephen D. Allison
                                               _________________________________
                                                Stephen D. Allison
                                                Chief Financial Officer

                                      -4-
<PAGE>
 
                                 EXHIBIT INDEX
 
EXHIBIT
NUMBER     DESCRIPTION
- ---------  ------------
 
10.18      Press Release dated October 27, 1997, entitled "PRI
           Automation to Acquire Equipe Technologies, Inc."
 
10.19      Agreement and Plan of Reorganization, dated as of October
           25, 1997, among PRI Automation, Inc., E-Acquisition
           Corp., Equipe Technologies, Inc. and Certain Stockholders
           of Equipe Technologies, Inc.
 
10.20      Stock Purchase Agreement, dated as of October 25, 1997,
           among PRI Automation, Inc. and the Shareholders of E-Machine, Inc.
 
10.21      Stock Purchase Agreement, dated as of October 25, 1997,
           among PRI Automation, Inc. and the Shareholders of Equipe
           Japan Corporation
 

<PAGE>
                                                                   EXHIBIT 10.18
                        [LETTERHEAD OF PRI AUTOMATION]


              PRI AUTOMATION TO ACQUIRE EQUIPE TECHNOLOGIES, INC.

    Acquisition Strengthens PRI's Position as a Leading Global Supplier of
                       Semiconductor Automation Systems

               Transaction Expected to be Immediately Accretive

BILLERICA, Mass--October 27, 1997--PRI Automation, Inc., (NASDAQ:PRIA) a leader
in semiconductor factory automation, announced today that it has agreed to
acquire Equipe Technologies, Inc., the leading supplier of wafer-handling robots
for semiconductor process tools. The merger will be effected by the issuance of
4.4 million shares of PRI common stock currently valued at approximately $172
million. The transaction strengthens PRI's position in semiconductor factory
automation, one of the fastest growing segments of the semiconductor capital
equipment market. The merger extends PRI's ability to deliver complete wafer-
flow automation solutions to its semiconductor customers. The acquisition of
privately held Equipe will be accounted for as a pooling of interests and is
expected to be immediately accretive to PRI's earnings. The acquisition is
expected to be completed in early January 1998, and is subject to PRI
shareholder approval.

"This acquisition provides a significant addition to PRI's array of wafer-
handling solutions," said Mitch Tyson, president of PRI Automation, Inc. "We can
now offer our end user and OEM customers an integrated solution to their
automation needs that optimizes the flow of wafers from chamber to chamber, from
bay to bay, and throughout their fabs. Equipe's excellent reputation and
outstanding people are a great addition to PRI, and Equipe's Sunnyvale,
California location will establish a strong base in Silicon Valley from which we
can support our West Coast customers."

Equipe Technologies, Inc. is the leading supplier of wafer-handling robots to
semiconductor process tool manufacturers with over 120 OEM accounts worldwide
and an installed base of more than 9,000 units. PRI plans to offer process tool
manufacturers a complete material-handling, front-end solution consisting of
Equipe's wafer-handling technologies and the buffering and interface
technologies of PRI's Tool Automation Systems Division.

"This is great news for process tool vendors," remarked G. Dan Hutcheson,
president of VLSI Research. "PRI has developed a terrific reputation for its
wafer transport systems. With the acquisition of Equipe, PRI extends its
capabilities to process tool chambers, which will help break down the barriers
that have existed between tools and fab automation."

<PAGE>
 
PRI AUTOMATION TO ACQUIRE EQUIPE TECHNOLOGIES, INC.
OCTOBER 27, 1997
PAGE 2 OF 3

"We are excited to join forces with the market leader of fab-wide material
handling solutions," said James Cameron, chief executive officer of Equipe.
"Equipe's process tool automation products fit perfectly with PRI's strategy of
providing total automation solutions to semiconductor manufacturers. The
combination of our expertise in building high precision, highly reliable wafer-
handling robots with PRI's worldwide factory automation experience, strengthens
us as a valued partner to both tool manufacturers and semiconductor
manufacturers." James Cameron will become president of the Equipe Division of
PRI Automation and report to Tyson.

"Automation is a critical enabler for the semiconductor industry, particularly
for 300mm wafer tools and fabs," said Mord Wiesler, chairman and CEO of PRI
Automation. "By combining the automated material handling expertise of PRI and
Equipe with the sophisticated scheduling software capabilities of our recent
Interval Logic Corporation acquisition, we will be uniquely positioned to
provide an integrated automation solution to optimize wafer flow throughout the
fab, improve overall fab productivity and help maximize our customers' return
on their capital investments."

ABOUT EQUIPE

Founded in 1990, Equipe Technologies, Inc., designs, manufactures and markets
precision vacuum and atmospheric robots for the semiconductor and flat panel 
industries. With an installed base of more than 9,000 units worldwide, Equipe is
the leading supplier of atmospheric robots. In 1996, Equipe ranked ninth on Inc.
Magazine's list of Fastest Growing Private Companies in America and was 
recognized as the fastest growing private company in Silicon Valley by the San 
Jose Business Journal. The company is headquartered in Sunnyvale, Calif., with 
sales and service offices worldwide. For more information, visit Equipe's Web 
site at http://www.equipetech.com.
        -------------------------

ABOUT PRI AUTOMATION

PRI Automation, Inc., headquartered in Billerica, Massachusetts, is a leading
global supplier of advanced factory automation systems that enhance the
competitiveness of semiconductor manufacturers. PRI is the only company to
provide a tightly integrated and flexible hardware and software solution that
optimizes the flow of wafers throughout the fab. The company currently has more
than 1,600 systems installed at approximately 100 locations worldwide. For more
information, visit PRI's Web site at http://www.pria.com.
                                     -------------------

                                      ###

SOME STATEMENTS MADE IN THIS RELEASE ARE FORWARD LOOKING. ACTUAL RESULTS COULD
DIFFER MATERIALLY FROM THESE STATEMENTS. CERTAIN FACTORS THAT MAY AFFECT FUTURE
RESULTS ARE LISTED IN PRI'S LATEST FORM 10-K FILED WITH THE SECURITIES AND
EXCHANGE COMMISSION.

          All trademarks are the property of their respective owners.

                                    -more-

<PAGE>
                                                                   EXHIBIT 10.19


================================================================================



                     AGREEMENT AND PLAN OF REORGANIZATION



                                     among



                             PRI AUTOMATION, INC.,



                             E-ACQUISITION CORP.,



                           EQUIPE TECHNOLOGIES, INC.



                                      and



               CERTAIN STOCKHOLDERS OF EQUIPE TECHNOLOGIES, INC.






                         Dated as of October 25, 1997



================================================================================
<PAGE>
 
                                TABLE OF CONTENTS
<TABLE> 
<CAPTION> 
                                                       ARTICLE 1. THE MERGER
<S>               <C>                                                                                           <C> 
Section 1.1.      Officers' Certificates..........................................................................1
Section 1.2.      Closing Date....................................................................................1
Section 1.3.      Effective Time..................................................................................1
Section 1.4.      Effect on Capital Stock.........................................................................2
Section 1.5.      Exchange of Equipe Certificates.................................................................3
Section 1.6.      Other Effects...................................................................................3
Section 1.7.      Accounting and Tax Treatment....................................................................3

                                 ARTICLE 2. REPRESENTATIONS AND WARRANTIES OF EQUIPE AND FOUNDERS

Section 2.1.      Corporate Status................................................................................4
Section 2.2.      Corporate Documents.............................................................................4
Section 2.3.      Capital Structure...............................................................................4
Section 2.4.      Authority.......................................................................................5
Section 2.5.      Investments.....................................................................................5
Section 2.6.      Financial Statements............................................................................6
Section 2.7.      Compliance with Applicable Laws.................................................................7
Section 2.8.      Litigation......................................................................................7
Section 2.9.      Properties......................................................................................7
Section 2.10.     Contracts.......................................................................................9
Section 2.11.     Taxes..........................................................................................10
Section 2.12.     Benefit Plans..................................................................................11
Section 2.13.     Absence of Certain Changes or Events...........................................................13
Section 2.14.     Officers, Directors and Key Employees..........................................................14
Section 2.15.     Potential Conflicts of Interest................................................................14
Section 2.16.     Finder's Fees..................................................................................14
Section 2.17.     Environmental Matters..........................................................................15
Section 2.18.     Insurance......................................................................................16
Section 2.19.     Employee Relations.............................................................................17
Section 2.20.     Proprietary Rights.............................................................................17
Section 2.21.     Certain Loans..................................................................................19
Section 2.22.     Customers, Suppliers, Sales Agents and Distributors............................................19
Section 2.23.     Business Activity Restrictions.................................................................19

                                             ARTICLE 3. REPRESENTATIONS AND WARRANTIES
                                      OF EQUIPE AND FOUNDERS REGARDING THE RELATED COMPANIES

Section 3.1.      Corporate Status...............................................................................19
Section 3.2.      Corporate Documents............................................................................19
Section 3.3.      Capital Structure..............................................................................20
Section 3.4.      Authority; Noncontravention....................................................................20
Section 3.5.      Investments....................................................................................20
Section 3.6.      Related Company Financial Statements...........................................................21
</TABLE> 

                                      (i)
<PAGE>
 
<TABLE> 
<CAPTION> 
                               ARTICLE 4. ADDITIONAL REPRESENTATIONS AND WARRANTIES OF THE FOUNDERS
<S>               <C>                                                                                           <C> 
Section 4.1.      Ownership of Equipe Common.....................................................................21
Section 4.2.      Authority......................................................................................21
Section 4.3.      Investment in PRI Common.......................................................................21
Section 4.4.      Government Consents............................................................................22
Section 4.5.      Finder's Fees..................................................................................23

                              ARTICLE 5. REPRESENTATIONS AND WARRANTIES OF PRI AND ACQUISITION CORP.

Section 5.1.      Corporate Status...............................................................................23
Section 5.2.      Capital Structure..............................................................................23
Section 5.3.      Authority......................................................................................23
Section 5.4.      SEC Documents..................................................................................25
Section 5.5.      Absence of Certain Events and Undisclosed Liabilities..........................................25
Section 5.6.      Litigation.....................................................................................25
Section 5.7.      Compliance with Applicable Laws................................................................26
Section 5.8.      Taxes..........................................................................................26
Section 5.9.      Proprietary Rights.............................................................................26
Section 5.10.     Finder's Fees..................................................................................26

                                     ARTICLE 6. COVENANTS OF EQUIPE AS TO CONDUCT OF BUSINESS

Section 6.1.      Ordinary Course................................................................................27
Section 6.2.      Corporate Documents............................................................................27
Section 6.3.      Capital Structure..............................................................................27
Section 6.4.      Compliance with Applicable Laws................................................................27
Section 6.5.      Investments and Acquisitions...................................................................27
Section 6.6.      Indebtedness...................................................................................27
Section 6.7.      Litigation.....................................................................................28
Section 6.8.      Properties.....................................................................................28
Section 6.9.      Contracts......................................................................................28
Section 6.10.     Taxes..........................................................................................28
Section 6.11.     Benefit Plans..................................................................................28
Section 6.12.     Insurance......................................................................................28
Section 6.13.     Employee Matters...............................................................................28
Section 6.14.     Proprietary Rights.............................................................................28
Section 6.15.     General........................................................................................28

                                       ARTICLE 7. COVENANTS OF PRI AS TO CONDUCT OF BUSINESS

Section 7.1.      Ordinary Course................................................................................29
Section 7.2.      Corporate Documents............................................................................29
Section 7.3.      Capital Structure..............................................................................29
Section 7.4.      Compliance with Applicable Laws................................................................29
Section 7.5.      Investments and Acquisitions...................................................................29
Section 7.6.      General........................................................................................29
</TABLE> 

                                     (ii)
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                  ARTICLE 8. ADDITIONAL COVENANTS
<S>               <C>                                                                                           <C>   
Section 8.1.      Proxy Statement................................................................................29
Section 8.2.      PRI Stockholders' Meeting......................................................................29
Section 8.3.      Related Company Acquisitions...................................................................30
Section 8.4.      Access to Information..........................................................................30
Section 8.5.      Confidentiality................................................................................30
Section 8.6.      Public Disclosure..............................................................................31
Section 8.7.      Exclusivity....................................................................................31
Section 8.8.      Securities Laws................................................................................31
Section 8.9.      Option Assumption; S-8 Registration Statement..................................................31
Section 8.10.     State Statutes.................................................................................31
Section 8.11.     Pooling Accounting.............................................................................31
Section 8.12.     Expenses.......................................................................................31
Section 8.13.     Consents; Further Assurances...................................................................31
Section 8.14.     Updates of Schedules...........................................................................32
Section 8.15.     Nomination of Director.........................................................................32
Section 8.16.     Indemnification of Equipe Officers and Directors...............................................32
Section 8.17.     Employee Matters...............................................................................33
Section 8.18.     Obligations of Acquisition Corp................................................................33
Section 8.19.     Affiliate's Agreements.........................................................................33

                                                  ARTICLE 9. CONDITIONS PRECEDENT

Section 9.1.      Conditions to Each Party's Obligations.........................................................33
Section 9.2.      Conditions to Obligations of PRI and Acquisition Corp..........................................34
Section 9.3.      Conditions to Obligations of Equipe and Founders...............................................36

                                                    ARTICLE 10. INDEMNIFICATION

Section 10.1.     Agreement to Indemnify.........................................................................36
Section 10.2.     Appointment of Stockholders' Representative....................................................37
Section 10.3.     Survival of Representations and Warranties.....................................................37
Section 10.4.     Certain Limitations............................................................................37

                                           ARTICLE 11. TERMINATION, AMENDMENT AND WAIVER

Section 11.1.     Termination....................................................................................38
Section 11.2.     Effect of Termination..........................................................................38
Section 11.3.     Amendment......................................................................................39
Section 11.4.     Extension; Waiver..............................................................................39

                                                     ARTICLE 12. MISCELLANEOUS

Section 12.1.     Arbitration....................................................................................39
Section 12.2.     Notices........................................................................................40
Section 12.3.     Construction...................................................................................41
Section 12.4.     Exhibits and Schedules.........................................................................41
Section 12.5.     Entire Agreement, Assignability, etc...........................................................41
Section 12.6.     Validity.......................................................................................41
</TABLE> 

                                     (iii)
<PAGE>
 
<TABLE> 
<S>               <C>                                                                                           <C>  
Section 12.7.     Further Assurances.............................................................................41
Section 12.8.     Jurisdiction and Venue.........................................................................41
Section 12.9.     Governing Law..................................................................................41
Section 12.10.    Counterparts...................................................................................41
</TABLE> 

<TABLE> 
<CAPTION> 
                                    EXHIBITS
<S>                        <C> 
Exhibit A-1.               E-Machine Purchase Agreement
Exhibit A-2.               Equipe Japan Purchase Agreement
Exhibit B-1.               Form of PRI Affiliate's Agreement
Exhibit B-2.               Form of Equipe Affiliate's Agreement
Exhibit C.                 Form of Employment Agreement
Exhibit D.                 Form of Registration Rights Agreement
Exhibit E.                 Form of Irrevocable Proxy
Exhibit F.                 Form of Opinion of Counsel for Equipe and the Founders
Exhibit G.                 Form of Opinion of Counsel for PRI and Acquisition Corp.
</TABLE> 

                                     (iv)
<PAGE>
 
      THIS AGREEMENT AND PLAN OF REORGANIZATION dated as of October 25, 1997
(this "Agreement") is entered into among PRI Automation, Inc., a Massachusetts
corporation ("PRI"), E-Acquisition Corp., a California corporation and wholly
owned subsidiary of PRI ("Acquisition Corp."), Equipe Technologies, Inc., a
California corporation ("Equipe"), and each of James Cameron, Frantisek Pavlik,
Paul Rogan, Lubomir Skrobak and Steven The (each a "Founder" and collectively
the "Founders").


                                   RECITALS

      Each of the Founders is the record holder of the number of issued and
outstanding shares of common stock of Equipe ("Equipe Common") set forth on
Schedule 2.3 to this Agreement.
- ------------

      Simultaneously with entering into this Agreement, PRI, the Founders and
the holders of the capital stock of the Related Companies (as defined below)
have entered into share purchase agreements (collectively, the "Related Company
Acquisition Agreements") in the forms attached hereto as Exhibit A-1 and Exhibit
                                                         -----------------------
A-2 relating to the purchase by PRI (collectively, the "Related Company
- ---
Acquisitions") of all of the outstanding capital stock of E-Machine, Inc.
("E-Machine") and Equipe Japan Corporation ("Equipe Japan"). (E-Machine and
Equipe Japan are sometimes referred to herein as the "Related Companies.")

      The parties hereto desire to effect a reorganization in which Acquisition
Corp. shall be merged into Equipe, with (a) the surviving corporation to be a
wholly owned subsidiary of PRI, (b) all of the issued and outstanding shares of
Equipe Common to be converted into shares of common stock, $.01 par value, of
PRI ("PRI Common") and (c) all of the outstanding options to purchase Equipe
Common (the "Equipe Options") to become exercisable (if and when vested) to
acquire shares of PRI Common, all upon the terms and conditions set herein.

      NOW, THEREFORE, PRI, Acquisition Corp., Equipe and the Founders hereby
agree as follows:


                             ARTICLE 1. THE MERGER

      Section 1.1. Officers' Certificates. Subject to and upon the terms and
conditions of this Agreement, and on the basis of the agreements, covenants,
representations and warranties herein contained, at the closing of the
transactions contemplated by this Agreement (the "Closing") authorized officers
of each of Equipe and Acquisition Corp. shall execute the officers' certificates
(the "Officers' Certificates") required by Section 1103 of the California
General Corporation Law in connection with the statutory merger of Acquisition
Corp. with and into Equipe (the "Merger").

      Section 1.2. Closing Date. The Closing shall be held within five (5) days
following the satisfaction of each of the conditions set forth in Article 9 and
shall take place at the office of Foley, Hoag & Eliot LLP, Boston,
Massachusetts, at 9 A.M., Pacific time, or on such other date, or at such other
time and place, as the parties may agree upon in writing. The date on which the
Closing is to be held is herein referred to as the "Closing Date."

      Section 1.3. Effective Time.  Subject to the provisions of this 
Agreement, as soon as practicable on or after the Closing Date, a certificate of
satisfaction of the California Franchise Tax Board relating to Acquisition Corp.
(the "Certificate of Satisfaction"), a copy of this Agreement (or a merger
agreement as contemplated by Section 1101 of the California General Corporation
Law) and the executed original Officers' Certificates shall be filed in
accordance with the California General Corporation Law. The

                                       1
<PAGE>
 
Merger shall become effective as of the time (the "Effective Time") and on such
date (the "Effective Date") as the latest of such filings has been made
(provided that all such filings are subsequently accepted in due course by the
Secretary of State of the State of California). Under this Agreement, shares of
Equipe Common issued and outstanding immediately prior to the Effective Time
will be converted into fully paid and nonassessable shares of PRI Common, in
accordance with Section 1.4.

      Section 1.4. Effect on Capital Stock. At the Effective Time, by virtue of
the Merger and without any action on the part of any party:

            1.4.1. All of the 1,000 issued and outstanding shares of common
      stock of Acquisition Corp. shall be converted into an aggregate of 1,000
      shares of common stock of the Surviving Corporation (as defined in Section
      1.6). Each stock certificate representing shares of common stock of
      Acquisition Corp. prior to the Effective Time shall represent an equal
      number of shares of common stock of the Surviving Corporation from and
      after the Effective Time.

            1.4.2. Each share of Equipe Common issued and outstanding
      immediately prior to the Effective Time shall be converted, subject to the
      indemnification provisions of Article 10, into the right to receive the
      consideration set forth below. Subject to the terms and conditions of this
      Agreement, as of the Effective Time, by virtue of the Merger and without
      any action on the part of Acquisition Corp., Equipe or the holder of any
      shares of the capital stock of Equipe, the following shall occur:

               (a) Each holder of record of Equipe Common issued and
            outstanding immediately prior to the Effective Time (each a
            "Holder") shall receive a number of shares of PRI Common equal to
            the product of the number of shares of such Equipe Common held of
            record by such Holder immediately prior to the Effective Time
            multiplied by 0.760372 (the "Merger Ratio").

               (b) Each outstanding Equipe Option will be assumed by PRI as
            of the Effective Time and shall thereafter entitle its holder, upon
            exercise of such Equipe Option (if and when vested) following the
            Effective Time, to receive that number of shares of PRI Common equal
            to the product of the number of shares of Equipe Common that were
            issuable upon exercise of such Equipe Option immediately prior to
            the Effective Time (without regard to vesting) multiplied by the
            Merger Ratio, rounded up to the nearest whole number of shares of
            PRI Common. In addition, following the Effective Time, the per share
            exercise price for the PRI Common issuable upon exercise of each
            Equipe Option shall be equal to the quotient, rounded down to the
            nearest whole cent, of the exercise price per share of Equipe Common
            at which such Equipe Option was exercisable immediately prior to the
            Effective Time divided by the Merger Ratio. Following the Effective
            Time, each assumed Equipe Option shall continue to have, and be
            subject to, the same terms and conditions as provided in the option
            agreement governing such Equipe Option immediately prior to the
            Effective Time, except as set forth in this Section.

            1.4.3. No fractional shares of PRI Common shall be issuable in
      connection with the Merger, but in lieu thereof each Holder who would
      otherwise be entitled to a fraction of a share of PRI Common shall receive
      from PRI an amount of cash (rounded to the nearest whole cent) equal to
      the product of (i) the fraction and (ii) the average of the last reported
      sale price of the PRI Common on the Nasdaq National Market on each of the
      twenty consecutive trading days immediately preceding the Effective Time
      (the "Average Price").


                                       2
<PAGE>
 
            1.4.4. If, between the date of this Agreement and the Effective
      Time, the outstanding shares of PRI Common shall have been changed into a
      different number of shares or a different class by reason of any
      reclassification, recapitalization, split up, combination, exchange of
      shares or readjustment, the Merger Ratio shall be correspondingly
      adjusted.

      Section 1.5. Exchange of Equipe Certificates. PRI hereby appoints Foley,
Hoag & Eliot LLP to act as exchange agent (the "Exchange Agent") in the Merger,
to act in accordance with the terms hereof and with such other instructions as
PRI may provide from time to time at or prior to the Closing. At the Closing,
the Holders shall surrender to the Exchange Agent certificates (the "Equipe
Certificates") representing all of the outstanding shares of Equipe Common and
the Exchange Agent shall deliver to each of the Holders certificates
representing the shares of PRI Common issuable pursuant to Section 1.4 in
exchange for shares represented by the Equipe Certificates and cash in lieu of
fractional shares pursuant to Section 1.4.3. Upon the delivery of such
certificates, the Equipe Certificates shall forthwith be canceled. The shares of
PRI Common delivered to the Holders pursuant to this Section 1.5 shall be deemed
to have been delivered in full satisfaction of all rights pertaining to the
ownership of the shares represented by the Equipe Certificates.

      Section 1.6. Other Effects.  At the Effective Time:

            (a)   the separate existence of Acquisition Corp. shall cease and
                  Acquisition Corp. shall be merged with and into Equipe, with
                  Equipe remaining as the surviving corporation (the "Surviving
                  Corporation");

            (b)   the bylaws of Acquisition Corp. shall be the bylaws of the
                  Surviving Corporation;

            (c)   the articles of incorporation of Acquisition Corp., as in
                  effect immediately prior to the Effective Time, shall be the
                  articles of incorporation of the Surviving Corporation until
                  the same shall be amended thereafter in accordance with the
                  California General Corporation Law and such articles of
                  incorporation; provided, however, that Article First of the
                  articles of incorporation of the Surviving Corporation shall
                  be amended to read as follows: "The name of the corporation is
                  Equipe Technologies, Inc.";

            (d)   the directors and officers of Acquisition Corp. shall be the
                  directors and officers of the Surviving Corporation; and

            (e)   the Merger shall, from and after the Effective Time, have all
                  of the effects provided by applicable law, including, without
                  limitation, the effects provided for in Section 1107 of the
                  California General Corporation Law.

      Section 1.7. Accounting and Tax Treatment. The parties intend that the
Merger shall be treated as a pooling of interests for accounting purposes and as
a reorganization under Section 368(a)(2)(E) of the Internal Revenue Code of
1986, as amended (the "Code").


                                       3
<PAGE>
 
       ARTICLE 2.  REPRESENTATIONS AND WARRANTIES OF EQUIPE AND FOUNDERS

      Except as set forth in the disclosure schedule dated as of the date of
this Agreement delivered to PRI by Equipe (the "Disclosure Schedule"), Equipe
and each of the Founders, jointly and severally, represent and warrant to PRI
and Acquisition Corp. as follows (except where the context expressly precludes
such reference, references to "Equipe" in the following representations and
warranties shall be deemed to include Equipe and the Related Companies, and the
assets, liabilities, operations and business of each of them, on a combined
basis):

      Section 2.1. Corporate Status. Equipe is a corporation duly incorporated,
validly existing and in good standing under the laws of the State of California,
with all requisite corporate power to own, lease and operate its properties and
to carry on its business as now being conducted. Equipe is duly qualified to do
business as a foreign corporation, and is in good standing, in each other
jurisdiction in which it owns or leases property or conducts business, except
where the failure to be so qualified does not have any effect that is, or is
reasonably likely to be, materially adverse to its results of operations or
financial condition, including the Related Companies, on a combined basis, other
than such effects resulting from (i) general economic changes affecting the
semiconductor capital equipment industry in general or (ii) this Agreement or
the transactions contemplated hereby or the announcement hereof (an "Equipe
Material Adverse Effect").

      Section 2.2. Corporate Documents. Equipe has delivered to PRI true and
complete copies of its articles of incorporation, as amended to date (the
"Equipe Charter"), and its bylaws, as amended to date (the "Equipe Bylaws"). The
Equipe Charter and the Equipe Bylaws are in full force and effect, and, except
as contemplated hereby, no further amendment or restatement thereof has been
adopted or proposed. Equipe is not in violation of any provision of the Equipe
Charter or the Equipe Bylaws. The minute books and stock records of Equipe,
copies of which have heretofore been delivered to PRI, are true and complete and
are the only minute books and stock records of Equipe as of the date hereof.
Schedule 2.2 sets forth the current directors and officers of Equipe.
- ------------

      Section 2.3. Capital Structure. The authorized capital stock of Equipe
consists of (a) 10,000,000 shares of Equipe Common, of which 5,376,344 shares
are outstanding as of the date hereof and (b) 1,000,000 shares of preferred
stock, none of which are outstanding. No shares of Equipe Common are held as
treasury stock. All shares of Equipe Common issued and outstanding as of the
date hereof are duly authorized, validly issued, fully paid and nonassessable
and not subject to preemptive rights created by statute, the Equipe Charter, the
Equipe Bylaws or any agreement to which Equipe is a party or is bound. The name
of each holder of an Equipe Option, the grant date of each Equipe Option, and
the number of shares of Equipe Common for which each Equipe Option is
exercisable are set forth on Schedule 2.3. The terms of the Equipe Options are
                             ------------
reflected in written option agreements, true and complete copies of which have
been delivered to PRI. Equipe has not accelerated the vesting schedule or
otherwise modified the terms of any of the Equipe Options. Equipe has not
issued, nor is Equipe or any stockholder of Equipe a party to or bound by: (a)
any option, warrant, call, right or agreement, other than the Equipe Options,
obligating Equipe to issue, deliver or sell additional shares of capital stock
of Equipe or to grant or modify any such option, warrant, call, right or
agreement; (b) any option, warrant, call, right or agreement obligating any such
stockholder of Equipe, in any circumstances, to deliver or sell, or offer for
delivery or sale, any shares of the capital stock of Equipe or obligating any
such stockholder to grant or modify any such option, warrant, call, right or
agreement, including any agreement containing provisions with respect to
preemptive rights, rights of first refusal, purchase rights, "tag-along" or
"come-along" arrangements, or similar rights; (c) any voting trust, proxy or
other agreement or understanding with respect to the voting of shares of capital
stock of Equipe; and (d) any other agreement restricting the transfer of, or
affecting rights with respect to, shares of the capital stock of Equipe.

                                       4
<PAGE>
 
      Section 2.4.   Authority.

            2.4.1. Equipe has all requisite corporate power to execute and
      deliver this Agreement and each of the Employment Agreements and to cause
      its officers to execute and deliver the Officers' Certificate of Equipe
      (each as defined herein and collectively the "Equipe Corollary
      Agreements") and to consummate the transactions contemplated hereby and
      thereby. The execution and delivery of this Agreement and the Equipe
      Corollary Agreements, and the consummation of the transactions
      contemplated hereby and thereby, have been duly and validly authorized by
      all requisite corporate action on the part of Equipe no other corporate
      proceedings on the part of Equipe are necessary to authorize the execution
      and delivery of this Agreement or any of the Equipe Corollary Agreements
      or to consummate the transactions contemplated hereby and thereby. This
      Agreement has been duly and validly executed and delivered by Equipe and,
      assuming the due and valid execution and delivery of this Agreement by the
      other parties hereto, constitutes a legal, valid and binding obligation of
      Equipe enforceable in accordance with its terms, all as may be subject to
      or affected by any bankruptcy, reorganization, insolvency, moratorium or
      similar laws of general application from time to time in effect and
      relating to or affecting the rights or remedies of creditors generally
      (the "Creditor Exception"). As of the Closing Date, each of the Equipe
      Corollary Agreements will be duly and validly executed and delivered by
      Equipe and will constitute a legal, valid and binding obligation of Equipe
      enforceable in accordance with its terms, all as may be subject to or
      affected by the Creditor Exception.

            2.4.2. The execution and delivery of this Agreement do not, and the
      execution and delivery of the Equipe Corollary Agreements and the
      consummation of the transactions contemplated hereby and thereby will not,
      result in any Violation (as defined below) of any provision of the Equipe
      Charter, the Equipe Bylaws, any Contract (as defined in Section 2.10),
      including any loan or credit agreement, note, mortgage, indenture, lease
      or employee benefit plan, any of the Permits (as defined in Section 2.7),
      or any judgment, order, decree, statute, law, ordinance, rule or
      regulation of any Governmental Entity (as defined below) applicable to
      Equipe or its properties or assets, other than Violations that do not and
      will not, individually or in the aggregate, have an Equipe Material
      Adverse Effect. Equipe does not have any plans, programs or agreements to
      which it is a party or subject pursuant to which payments may be required
      or acceleration of benefits may be required upon a change of control of
      Equipe. No consent, approval, order or authorization of, or registration,
      declaration or filing with, any Governmental Entity is required by or with
      respect to Equipe in connection with the execution and delivery of this
      Agreement or any of the Equipe Corollary Agreements or the consummation of
      the transactions contemplated hereby and thereby, other than pursuant to
      the HSR Act (as hereinafter defined) and except for the filing of the
      Certificate of Satisfaction, a copy of this Agreement and the executed
      original Officers' Certificates with the Secretary of State of the State
      of California. As used herein: "Violation" means, with respect to a
      provision, (A) any conflict with, violation of or default (with or without
      notice or lapse of time, or both) under such provision, (B) the arising of
      any right of termination, cancellation or acceleration of any obligation,
      or loss of any material benefit, under such provision, or (C) the arising
      of any lien, pledge, claim, charge, security interest, mortgage, easement,
      servitude, refusal, claim of infringement, condition or other restriction
      or encumbrance of any kind, including any restriction on use, voting (in
      the case of any security), transfer, receipt of income or exercise of any
      other attribute of ownership on assets; and "Governmental Entity" means
      any domestic or foreign court, administrative agency or commission, or
      other governmental authority or instrumentality.

      Section 2.5.   Investments.  Equipe does not directly or indirectly own,
or have the right to acquire, any equity interest or investment in the equity
capital of any Person (as defined below). Equipe

                                       5
<PAGE>
 
has no obligation to acquire any class of securities (including debt securities)
issued by any Person. Equipe has not owned or controlled any subsidiary
corporation or any stock or other interest in any Person and is not a party to,
and has not been a party to, or bound by any partnership, joint venture,
voluntary association, cooperative or business trust agreement or arrangement
other than in the ordinary course of business. Equipe has delivered to PRI true
and complete copies of any such agreements or arrangements that were entered
into in the ordinary course of business and any provision of which is currently
in effect. As used herein, "Person" means any individual, corporation,
partnership, firm, joint venture, association, joint-stock company, trust,
unincorporated organization, Governmental Entity or any other entity.

      Section 2.6.   Financial Statements.

            2.6.1. The audited balance sheets of Equipe at each of December 31,
      1994, 1995 and 1996 and the related audited statements of operations,
      changes in stockholders' equity and cash flows for the years then ended
      (including the notes thereto), and the unaudited balance sheets of Equipe
      at June 30, 1996 and 1997 and the related unaudited statements of
      operations, changes in stockholders' equity and cash flows for the
      six-month period then ended (including the notes thereto), as provided by
      Equipe to PRI, have been prepared in accordance with generally accepted
      accounting principles ("GAAP"), applied on a consistent basis throughout
      the periods involved (except that the unaudited financial statements do
      not contain all the notes that may be required by GAAP and were or are
      subject to normal and recurring year-end adjustments that were not or are
      not expected to be material in amount), and fairly present in all material
      respects the financial position of Equipe as at the dates thereof and the
      results of its operations and its cash flows for the periods then ended.
      As used herein, "Financial Statements" means all of such financial
      statements and notes collectively, "1997 Balance Sheet" means the
      unaudited balance sheet of Equipe at June 30, 1997, and "1997 Financial
      Statements" means the 1997 Balance Sheet and the related unaudited
      financial statements of Equipe for the six months ended June 30, 1997
      (including the notes thereto). The books of account of Equipe have been
      prepared and maintained in accordance with Equipe's normal practice,
      consistent in all material respects with the accounting principles and
      policies reflected in the Financial Statements.

            2.6.2. All accounts receivable reflected on the 1997 Balance Sheet
      and Equipe's books and records as of the date hereof represent sales
      actually made in the ordinary course of business and in a manner
      consistent with Equipe's regular credit practices. The reserve for
      doubtful accounts reflected on the 1997 Balance Sheet was established
      based upon and consistent with past practice.

            2.6.3. Equipe has no liabilities, asserted liabilities or
      obligations of any nature, whether absolute, accrued, contingent or
      otherwise, other than (a) those disclosed or reflected on the 1997
      Financial Statements or disclosed in accordance with this Agreement
      (including any Schedule hereto), (b) those incurred since June 30, 1997 in
      the ordinary course of Equipe's business consistent with past practice,
      and (c) liabilities or obligations that are not material, individually or
      in the aggregate, or that are not required under GAAP to be disclosed or
      reflected on the 1997 Financial Statements.

            2.6.4. Equipe does not have any outstanding Indebtedness (as defined
      below) for borrowed money or any other Indebtedness, other than
      Indebtedness reflected or reserved against in the 1997 Balance Sheet,
      accounts payable incurred since June 30, 1997 in the ordinary course of
      business consistent with past practice, and Indebtedness disclosed in
      accordance with this Agreement (including any Schedule hereto). For
      purposes of this Agreement, "Indebtedness"

                                       6
<PAGE>
 
      means (a) all items (except items of capital stock, stockholders' equity,
      surplus or retained earnings, and general contingency reserves) that in
      accordance with GAAP would be included in determining total liabilities of
      Equipe as at the date as of which Indebtedness is to be determined, (b)
      indebtedness secured by any mortgage, pledge, lien, security interest or
      conditional sale or other title retention agreement to which any property
      or asset owned or held by Equipe is subject, whether or not the
      indebtedness secured thereby shall have been assumed, and (c) indebtedness
      of others which Equipe has directly or indirectly guaranteed, endorsed
      (otherwise than for collection or deposit in the ordinary course of
      business), sold or discounted with recourse or (contingently or otherwise)
      to purchase or repurchase or otherwise acquire, or in respect of which
      Equipe has agreed to supply or advance funds (whether by way of loan,
      stock purchase, capital contribution or otherwise) or otherwise become
      directly or indirectly liable.

      Section 2.7. Compliance with Applicable Laws. Equipe holds all permits,
licenses, variances, certificates of occupancy, exemptions, orders, approvals
and authorizations of all Governmental Entities that are material to the
operation of its business (the "Permits"). All of the Permits are in full force
and effect, and Equipe has delivered to PRI true and complete copies of all of
the Permits. Equipe is in compliance with the terms of the Permits, except where
any such failure so to comply, individually or in the aggregate with any other
such failures, would not have an Equipe Material Adverse Effect. Equipe has not
received notice from any Governmental Entity that it is in Violation of any
Permit, and no proceeding is pending, or, to the knowledge of Equipe or any
Founder, threatened, to revoke, suspend, cancel or limit any of the Permits. No
action by Equipe, PRI, the Surviving Corporation or any other party is required
in order that all of the Permits will remain in full force and effect following
the Merger. The business of Equipe is not being conducted in violation of or
conflict with any law, ordinance or regulation or any order, judgment,
injunction, award or decree of any Governmental Entity (except for Environmental
Laws, which are the subject of Section 2.17) (collectively "Laws"), except such
violations or conflicts as do not and will not, individually or in the
aggregate, have an Equipe Material Adverse Effect. As of the date of this
Agreement, no investigation or review by any Governmental Entity with respect to
Equipe is pending or, to the knowledge of Equipe or any Founder, threatened,
and, to the knowledge of Equipe and each Founder, the continued use, occupancy
and operation of the Leased Real Property (as defined in Section 2.9.2) as
currently used, occupied and operated does not constitute a nonconforming use
under any Law.

      Section 2.8. Litigation. Except as set forth on Schedule 2.8, there is no
                                                      ------------
claim, dispute, action, suit, appeal, legal, administrative or arbitral
proceeding, or investigation, at law or in equity, pending against Equipe, or
involving any of its assets or properties, or in respect of which Equipe has
agreed to indemnify or defend any other Person, before any court, agency,
authority, arbitration panel or other tribunal, and, to the knowledge of Equipe
and each Founder, none has been threatened. Equipe is not subject to any
subpoena, warrant, order, writ, injunction or decree of any court, agency,
authority, arbitration panel or other tribunal, nor is it in default with
respect to any such subpoena, warrant, order, writ, injunction or decree. No
judgment has been entered by, and no claim, dispute, action, suit, appeal,
legal, administrative or arbitral proceeding, or investigation, at law or in
equity, is pending or, to the knowledge of Equipe or any Founder, threatened,
that materially and adversely affects, or could materially and adversely affect,
the ability of Equipe to perform under this Agreement or that seeks to enjoin or
prohibit any of the transactions contemplated by this Agreement.

      Section 2.9. Properties.

            2.9.1. Owned Properties. Equipe does not own and has never owned any
real property.


                                       7
<PAGE>
 
            2.9.2. Leased Properties. Equipe has delivered to PRI true and
      complete copies of all leases, subleases, licenses, revocable use permits
      and other agreements (collectively, the "Real Property Leases") under
      which Equipe uses or occupies any real property (the land and improvements
      covered by the Real Property Leases being herein called the "Leased Real
      Property"), which Real Property Leases involve aggregate payments by
      Equipe of $100,000 or more per year. Each Real Property Lease is valid,
      binding and in full force and effect, no written notice of default or
      termination thereunder is outstanding with respect to any Real Property
      Lease, all rent and other material sums due and payable by Equipe under
      each Real Property Lease are current, neither Equipe nor, to the knowledge
      of Equipe, the lessor, is in default in any material respect in its
      obligations under any Real Property Lease, and no event has occurred nor
      condition exists which, with the giving of notice or the lapse of time or
      both, would constitute a material default under any Real Property Lease.
      Equipe holds the leasehold estate under and interest in each Real Property
      Lease free and clear of all liens, claims, charges and encumbrances
      (together, "Encumbrances") except for (a) Encumbrances reflected in the
      1997 Financial Statements with respect to which no default (or event that,
      with notice or lapse of time or both, would constitute a default) exists,
      (b) Encumbrances securing taxes, assessments, governmental charges or
      levies, or the claims of materialmen, carriers, landlords and like
      persons, all of which are not yet due and payable, (c) restrictions on use
      contained in Real Property Leases that do not restrict the property
      subject thereto from being used as such property is currently used or (d)
      imperfections of title and other minor Encumbrances that do not materially
      detract from the value or impair the use of the asset subject thereto or
      impair the operations of Equipe (collectively, the Encumbrances described
      in clauses (a), (b), (c) and (d) shall be referred to as "Permitted
      Encumbrances"). Neither Equipe nor any of its officers, directors or
      stockholders has any ownership, financial or other interest in the
      landlord under any Real Property Lease.

            2.9.3. Entire Premises. All of the land, buildings, structures and
      other improvements used by Equipe in the conduct of Equipe's business (the
      "Improvements") are included in the Leased Real Property. To the knowledge
      of Equipe and each Founder, Equipe has taken no action and has suffered no
      action to occur that would materially adversely affect the interest of
      Equipe in the Leased Real Property. Equipe does not own or hold, and is
      not obligated under or a party to, any option, right of first refusal or
      other contractual right to purchase, acquire, sell or dispose of the
      Leased Real Property or any portion thereof or interest therein.

            2.9.4. Personal Property. Equipe has good and marketable title to,
      or holds under valid leasehold estates, all personal property necessary
      for the operation of Equipe's business, free and clear of any imperfection
      of title or Encumbrance, other than Permitted Encumbrances and
      imperfections and Encumbrances that, individually or in the aggregate,
      would not have an Equipe Material Adverse Effect.

            2.9.5. Condition of Property. The Leased Real Property and all
      personal property owned or leased by Equipe and necessary for the
      operation of Equipe's business are in good operating condition and repair
      in all material respects, ordinary wear and tear excepted.

            2.9.6. Condemnation. To the knowledge of Equipe and each Founder,
      there is no threatened condemnation proceeding affecting the Leased Real
      Property or any part thereof or any sale or other disposition of the
      Leased Real Property or any part thereof in lieu of condemnation.

            2.9.7. Space Leases. Equipe has not entered into any lease,
      sublease, license or other agreement granting to any person other than
      Equipe any right to the possession, use, occupancy or enjoyment of the
      Leased Real Property or any portion thereof.

                                       8
<PAGE>
 
      Section 2.10. Contracts. Set forth on Schedule 2.10 is a list of the
                                            -------------
following written agreements, contracts, instruments, guaranties, or commitments
to which Equipe or either of the Related Companies is a party or by which or to
which any of such company's assets or properties are bound or subject
("Contracts"), true and complete copies of which have been provided to PRI:

      (a)   Contracts with any current or former officer, director, employee,
            consultant, agent, representative or security holder, including any
            employment, consulting or deferred compensation agreement and any
            executive compensation, bonus or incentive plan agreement;

      (b)   Contracts for the purchase, sale or lease of materials, supplies,
            equipment, goods, research and development, or capital assets, or
            the receipt of services, the performance of which will extend over a
            period of more than one year or involve consideration in excess of
            $100,000;

      (c)   Contracts currently in effect that were entered into in the ordinary
            course of business and that involve payment of consideration to or
            by Equipe in excess of $100,000;

      (d)   Contracts for the sale of any assets or properties of Equipe other
            than in the ordinary course of business or for the grant to any
            Person of any preferential rights to purchase any assets or
            properties of Equipe;

      (e)   Contracts establishing joint ventures or partnerships;

      (f)   Contracts establishing franchise, distribution or sales agency
            arrangements;

      (g)   Contracts under which Equipe agrees to indemnify any party other
            than Contracts entered into in the ordinary course of business;

      (h)   Contracts containing obligations or liabilities of any kind to
            holders of the capital stock of Equipe as such;

      (i)   Contracts relating to the acquisition by Equipe of any operating
            business or any capital stock of any other Person (including,
            without limitation, either of the Related Companies);

      (j)   Contracts containing options for the purchase of any asset tangible
            or intangible, for an aggregate purchase price of more than
            $100,000;

      (k)   Contracts requiring the payment to any person of any override or
            similar commission or fee;
 
      (l)   Contracts for the borrowing of money;

      (m)   Contracts calling for an aggregate purchase price or payments by
            Equipe in any one year of more than $100,000 in any one case (or in
            the aggregate, in the case of any related series of Contracts); and

      (n)   any other Contracts that were not made in the ordinary course of
            business and that are, individually or in the aggregate, material to
            Equipe.

With respect to each Contract referred to above:

                                       9
<PAGE>
 
      (1)   the Contract is legal, valid and binding, is enforceable in
            accordance with its terms, and is in full force and effect;

      (2)   the Contract will continue to be legal, valid and binding,
            enforceable in accordance with its terms, and in full force and
            effect on identical terms following the Merger;

      (3)   neither Equipe nor, to the knowledge of Equipe or any Founder, any
            other party to the Contract is in material breach or default, and no
            event has occurred which with notice or lapse of time would
            constitute a material breach or default by Equipe, or, to the
            knowledge of Equipe or any Founder, by any other party, or permit
            termination, modification or acceleration under the Contract; and

      (4)   neither Equipe nor, to the knowledge of Equipe or any Founder, any
            other party to the Contract has repudiated any material provision of
            the Contract;

provided that the foregoing representations and warranties are qualified by the
Creditor Exception, and assume (x) the due and valid execution and delivery by
or on behalf of each of the other parties thereto, (y) that each of such other
parties had the power to enter into and perform its obligations thereunder and
(z) that the Contracts constitute the legal, valid, binding and enforceable
obligation of each such other party.

      Section 2.11. Taxes.

            2.11.1. Equipe and each of the Related Companies has timely filed in
      accordance with applicable law all Tax Returns (as defined below) they
      were required to file, and the Founders individually have filed in
      accordance with applicable law all Tax Returns they were required to file
      with respect to the operations and assets of Equipe and each of the
      Related Companies. All Taxes (as defined below) shown as due on such Tax
      Returns have been paid. All Tax Returns filed by Equipe, the Related
      Companies and the Founders with respect to Taxes were prepared in
      compliance with all applicable laws and regulations and were true and
      complete in all material respects as of the date on which they were filed
      or as subsequently amended to the date hereof. Equipe has delivered to PRI
      true and complete copies of federal, state, local and foreign Tax Returns
      and the related Form K-1's of Equipe, the Related Companies and the
      Founders for each of the years ended December 31, 1996, 1995 and 1994 and
      all revenue agent's reports and other written assertions of deficiencies
      or other liabilities for Taxes with respect to past periods for which the
      applicable statute of limitations has not expired. None of such Tax
      Returns is or has been subject to audit. Equipe will provide to PRI copies
      of any such reports or written assertions received after the date hereof
      within ten days of their first being received by Equipe.

            2.11.2. Equipe and each Related Company has timely paid, or will
      timely pay on or prior to the Closing Date, all Taxes for which a notice
      of, or assessment or demand for, payment has been received or which are
      otherwise due and payable up to and including the Closing Date with
      respect to Equipe, its operations and assets (in each case, whether or not
      shown on any Tax Return), except for Taxes that are being contested in
      good faith by appropriate proceedings (all of which are set forth on
      Schedule 2.11) and Taxes for which adequate reserves are reflected on the
      -------------
      1997 Balance Sheet.

            2.11.3. Equipe and each Related Company has complied with all
      applicable laws, rules and regulations relating to the withholding of
      Taxes and has timely collected or withheld and paid over (and up to the
      Closing Date will have timely collected or withheld and paid over) to the
      proper

                                       10
<PAGE>
 
      Governmental Entities all amounts required to be so collected or withheld
      and paid over for all periods up to the Closing Date under all applicable
      laws. There are not currently in effect any waivers or extensions of any
      applicable statute of limitations for the assessment or collection of
      Taxes with respect to any Tax Return that relates to Equipe or either of
      the Related Companies, and no request for any such waiver or extension is
      pending. There are no Tax rulings, requests for rulings or closing
      agreements relating to Equipe that could affect its liability for Taxes
      for any period after the Closing Date.

            2.11.4. Neither Equipe nor either Related Company has any current or
      potential contractual obligation to indemnify any other Person with
      respect to Taxes, or any obligation to make distributions in respect of
      Taxes. No claim has ever been made by a taxing authority in a jurisdiction
      where Equipe does not file Tax Returns that Equipe is or may be subject to
      taxation by such jurisdiction. No power of attorney has been granted by
      Equipe with respect to any matter relating to Taxes, which power of
      attorney is currently in force. Equipe has not filed a consent under Code
      section 341(f) or any comparable provision of state law.

As used herein: "Taxes" means all taxes of any kind, charges, fees, customs,
duties, imposts, levies or other assessments, including all net income, gross
receipts, ad valorem, value added, transfer, gains, franchise, profits,
inventory, net worth, capital stock, asset, sales, use, license, estimated,
withholding, payroll, transaction, capital, employment, social security, workers
compensation, unemployment, excise, severance, stamp, occupation, and property
taxes, together with any interest and any penalties, additions to tax or
additional amounts, imposed by any taxing authority; and "Tax Return" means all
returns, declarations, reports, forms, estimates, information returns and
statements required to be filed in respect of any Taxes or to be supplied to a
taxing authority in connection with any Taxes.

      Section 2.12. Benefit Plans.

            2.12.1. Schedule 2.12 sets forth a true and complete list of all
                    -------------
      employee benefit plans (whether or not they constitute employee benefit
      plans within the meaning of section 3(3) of Title IV of Employee
      Retirement Income Security Act of 1974, as amended), arrangements,
      policies or commitments (including any employment, consulting or deferred
      compensation agreement, executive compensation, bonus, incentive, pension,
      profit-sharing, savings, retirement, stock option, stock purchase or
      severance pay plan, any life, health, disability or accident insurance
      plan, or any holiday or vacation practice) as to which Equipe or any
      Commonly Controlled Entity has any direct or indirect, actual or
      contingent liability (each a "Benefit Plan"). Equipe has, with respect to
      each Benefit Plan, delivered to PRI, where applicable, true and complete
      copies of: (a) all plan texts and agreements and related trust agreements
      or annuity contracts; (b) all summary plan descriptions and material
      employee communications; (c) the most recent annual report (Form 5500
      series, including all schedules thereto); (d) the most recent actuarial
      valuation; (e) the most recent annual audited financial statement and
      opinion; (f) if the plan is intended to qualify under Code section 401(a)
      or 403(a), the most recent determination letter received from the Internal
      Revenue Service (the "IRS"); and (g) all material communications with any
      Governmental Entity, including the Pension Benefit Guaranty Corporation
      (the "PBGC") and the IRS.

            2.12.2. No Benefit Plan is subject to Title IV of Employee
      Retirement Income Security Act of 1974, as amended ("ERISA"), or to Code
      section 412 or is a defined benefit plan within the meaning of ERISA
      section 3(35) or Code section 414(i). Equipe and any entity which is under
      common control with Equipe within the meaning of Code section 414(b), (c),
      (m) or (o) (a "Commonly Controlled Entity") has made all payments due from
      it to date with respect to each Benefit Plan. All amounts properly accrued
      as liabilities to or expenses of any Benefit Plan that

                                       11
<PAGE>
 
      have not been paid have been properly reflected on the 1997 Financial
      Statements. Each Benefit Plan conforms to, and its administration is in
      compliance with, all applicable laws and regulations except where the
      failure to so conform or comply would not have an Equipe Material Adverse
      Effect. There are no actions, liens, suits or claims pending or, to the
      knowledge of Equipe, threatened (other than routine claims for benefits)
      with respect to any Benefit Plan which would have an Equipe Material
      Adverse Effect. Each Benefit Plan which is intended to qualify under Code
      section 401(a) or 403(a) so qualifies except where the failure to so
      qualify would not have an Equipe Material Adverse Effect. No event has
      occurred, and there exists no condition or set of circumstances, that
      presents a material risk of a partial termination (within the meaning of
      Code section 411(d)(3)) of any Benefit Plan. Except as set forth on
      Schedule 2.12, Equipe does not have any Benefit Plan that is a "group
      -------------
      health plan" (as defined in ERISA section 607(1)). No assets of Equipe are
      allocated to or held in a "rabbi trust" or similar funding vehicle. Equipe
      does not have any Benefit Plan that is a welfare plan within the meaning
      of ERISA section 3(1) (regardless of whether the plan is covered by ERISA)
      and that provides benefits to current or former employees beyond their
      retirement or other termination of service (other than coverage mandated
      by COBRA, the cost of which is fully paid by the current or former
      employee or his dependents); and there exists no (a) unfunded benefit
      obligations with respect to any employee of Equipe which are not fairly
      reflected by reserves shown on Equipe's most recent financial statements
      or (b) reserves, assets, surpluses or prepaid premiums with respect to any
      Benefit Plan that is a welfare plan within the meaning of ERISA section
      3(1) (regardless of whether the plan is covered by ERISA).

            2.12.3. The consummation of the transactions contemplated by this
      Agreement will not (a) entitle any current or former individual employed
      by Equipe or any Commonly Controlled Entity to severance pay, unemployment
      compensation or any similar payment, (b) accelerate the time of payment or
      vesting, or increase the amount of any compensation due to, any current or
      former employed by Equipe or any Commonly Controlled Entity, (c)
      constitute or involve a prohibited transaction (as defined in ERISA
      section 406 or Code section 4975), constitute or involve a breach of
      fiduciary responsibility within the meaning of ERISA section 502(1) or
      otherwise violate Part 4 of Title I of ERISA or (d) result in the payment
      of compensation that would, in combination with any other payment, result
      in an "excess parachute payment" within the meaning of Code section
      280G(b).

            2.12.4. As of the Closing, neither Equipe nor any Commonly
      Controlled Entity has incurred any liability or obligation under the
      Worker Adjustment and Retraining Notification Act, as it may be amended
      from time to time, and within the six-month period immediately following
      the Closing, neither will incur any such liability or obligation if,
      during such six-month period, only terminations of employment in the
      normal course of operations occur.

            2.12.5. With respect to the Benefit Plans, individually and in the
      aggregate, no event has occurred, and to the knowledge of Equipe and each
      Founder, there exists no condition or set of circumstances in connection
      with which Equipe could be subject to any liability under ERISA, the Code
      or any other applicable law that is reasonably likely to have an Equipe
      Material Adverse Effect, other than any liability for benefits claims and
      funding obligations payable in the ordinary course.

            2.12.6. With respect to the Benefit Plans, there are no funded
      benefit obligations for which contributions have not been made or properly
      accrued and there are no unfunded benefit obligations that have not been
      accounted for by reserves, or otherwise properly footnoted in accordance
      with GAAP, on the 1997 Balance Sheet, except for obligations that are not,
      individually and in the aggregate, reasonably likely to have an Equipe
      Material Adverse Effect.

                                       12
<PAGE>
 
      Section 2.13. Absence of Certain Changes or Events. Except as contemplated
by this Agreement, since June 30, 1997, Equipe has conducted its business only
in the ordinary course consistent with past practice. Without limiting the
generality of the foregoing, during such period:

      (a)   there has been no Equipe Material Adverse Effect;

      (b)   neither the business, properties nor assets of Equipe have suffered
            a material adverse loss (whether or not covered by insurance) as the
            result of fire, explosion, earthquake, accident, labor trouble,
            condemnation or taking of property by any Governmental Entity,
            flood, windstorm, pestilence, embargo, riot, act of God or the
            public enemy or any other casualty or similar event;

      (c)   Equipe has not declared or paid any dividend or other distribution
            (whether in cash, stock or property or any combination thereof) in
            respect of the capital stock of Equipe;

      (d)   Equipe has not purchased, redeemed or otherwise acquired (or
            committed itself to purchase, redeem or acquire), directly or
            indirectly, any shares of the capital stock of Equipe;

      (e)   Equipe has not made any acquisition of all or any part of the
            assets, properties, capital stock or business of any other Person,
            other than inventory, equipment and supplies acquired in the
            ordinary course of business consistent with past practice;

      (f)   Equipe has not, except in the ordinary course of business consistent
            with past practice, sold or otherwise disposed of any material
            assets of Equipe;

      (g)   Equipe has not sold, assigned, transferred, conveyed or licensed, or
            committed itself to sell, assign, transfer, convey or license, any
            Proprietary Rights (as defined in Section 2.20), other than in the
            ordinary course of business;

      (h)   Equipe has not waived or released any right or claim of material
            value to its business, including any write-off or other compromise
            of any material account receivable of Equipe;

      (i)   Equipe has not paid, directly or indirectly, any of its material
            liabilities before the same became due in accordance with its terms
            or otherwise than in the ordinary course of business consistent with
            past practice;

      (j)   Equipe has not made any payment or commitment to pay any severance
            or termination pay to any employee of Equipe;

      (k)   Equipe has not made any wage or salary increase or bonus, or
            increase in any other direct or indirect compensation for or to any
            employee, officer, director, consultant, agent or other
            representative, other than in the ordinary course of business
            consistent with past practice;

      (l)   Equipe has not made any loan or advance to any of its stockholders,
            officers, directors, employees, consultants, agents or other
            representatives (other than travel advances made in the ordinary
            course of business), or made any other loan or advance otherwise
            than in the ordinary course of business consistent with past
            practice;

      (m)   Equipe has not pledged or otherwise, voluntarily or involuntarily,
            encumbered any of its assets or properties, except for liens for
            current taxes which are not yet delinquent and purchase- 

                                       13
<PAGE>
 
            money liens arising out of the purchase or sale of products made in
            the ordinary and usual course of business and in any event not in
            excess of $25,000 for any single item or $50,000 in the aggregate;

      (n)   Equipe has not materially changed any of its accounting methods,
            principles or procedures;

      (o)   Equipe has not materially changed any of its business policies or
            practices, including advertising, marketing, pricing, purchasing,
            personnel, sales or budget policies;

      (p)   Equipe has not suffered or incurred any damage, destruction or loss,
            whether or not covered by insurance, which will have or could
            reasonably be expected to have an Equipe Material Adverse Effect;
            and

      (q)   Equipe has not entered into any agreement to do any of the
            foregoing.

      Section 2.14. Officers, Directors and Key Employees. Equipe has provided
to PRI:

      (a)   the name, position held and compensation of each Person who is
            either an officer or director of Equipe or an employee, consultant,
            agent or other representative of Equipe whose current annual rate of
            compensation (including bonuses and commissions) exceeds $100,000;
            and

      (b)   any arrangement or obligation of Equipe to make any payment to any
            such Person as a result of, or conditioned on, the consummation of
            the transactions contemplated hereby.

      Section 2.15. Potential Conflicts of Interest. Except for normal
compensation received as employees, no officer, director or stockholder of
Equipe and, other than the Related Companies, no entity known by Equipe to be
controlled by any officer, director or stockholder of Equipe:

      (a)   is directly or indirectly engaged in business as a competitor,
            lessor, lessee, customer or supplier of Equipe; owns directly or
            indirectly any interest (excepting no more than five percent
            stockholdings for investment purposes in securities of publicly held
            companies) in any Person that is directly or indirectly engaged in
            business as a competitor, lessor, lessee, franchisee, customer or
            supplier of Equipe; or is an officer, director, employee or
            consultant of any such Person;

      (b)   owns directly or indirectly, in whole or in part, any material
            tangible or intangible property that Equipe uses;

      (c)   has any cause of action or other claim whatsoever against, or owes
            any amount to, Equipe, except for claims in the ordinary course of
            business, such as for accrued vacation pay, and similar matters in
            agreements existing on the date hereof; or

      (d)   has made any payment or commitment to pay any commission, fee or
            other amount to, or purchase or obtain or otherwise contract to
            purchase or obtain any goods or services from, any Person of which
            any officer or director of Equipe is a partner or stockholder
            (excepting no more than five percent stockholdings for investment
            purposes in securities of publicly held companies).

      Section 2.16. Finder's Fees. Equipe has not incurred any liability,
contingent or otherwise, for brokerage fees, finder's fees, agent's commissions,
financial advisory fees or other similar forms of

                                       14
<PAGE>
 
compensation in connection with this Agreement or any of the transactions
contemplated hereby, other than as described in its engagement letter with BT
Alex. Brown Incorporated dated July 7, 1997, a copy of which has been provided
to PRI.

      Section 2.17. Environmental Matters.

            2.17.1. Equipe has been in the past and is now in compliance with
      all Environmental Laws (as defined below) and all requirements of
      applicable permits, licenses, approvals and other authorizations
      pertaining thereto other than any such noncompliance that would not have
      an Equipe Material Adverse Effect.

            2.17.2. Equipe has received no notification that it is or could be,
      and there is no basis for it to become, and, to Equipe's knowledge, it is
      not, subject to any claim, action, obligation, proceeding, investigation
      or evaluation, directly or indirectly relating to any of its current or
      past operations, or those of any predecessor or affiliate (as defined
      below), or any by-product thereof, or any of its current or formerly
      owned, leased or operated properties, or those of any predecessor or
      affiliate, that could reasonably be expected to directly or indirectly
      result in the incurrence of any Environmental Liabilities and Costs (as
      defined below) by Equipe.

            2.17.3. To Equipe's knowledge, there are not now and never have been
      any underground storage tanks situated on any real property owned, leased
      or operated by Equipe or any of its affiliates.

            2.17.4. Equipe has entered into no agreement with any Governmental
      Entity or other Person by which responsibility was assumed for, either
      directly or indirectly, the conduct of any Remedial Action or the
      incurrence of any other Environmental Liabilities and Costs.

            2.17.5. Equipe has not prepared, caused to be prepared or received
      any environmental audits, environmental risk assessments or site
      assessments. Equipe is not a party to any Contract with respect to the
      removal or disposal of any Oil or Hazardous Material.

As used herein:

      (a)   "affiliate" shall mean a Person that, directly or indirectly,
            through one or more intermediaries, controls, is controlled by, or
            is under common control with, the first mentioned Person;

      (b)   "Environment" shall mean all navigable waters, waters of the
            contiguous zone, ocean waters, natural resources, surface waters,
            ground water, drinking water supply, land surface, subsurface
            strata, ambient air, both inside and outside of buildings and
            structures, and plant and animal life on Earth;

      (c)   "Environmental Laws" shall mean all federal, state, local and
            foreign laws, principles of common law, rules, regulations and
            codes, as well as orders, decrees, judgments or injunctions issued,
            promulgated, approved or entered thereunder relating to pollution,
            protection of the Environment or public health and safety, including
            the Release or threatened Release of Oil or Hazardous Material into
            the Environment or otherwise relating to presence, manufacture,
            processing, distribution, use, treatment, storage, disposal,
            transport or handling of Oil or Hazardous Material;

                                       15
<PAGE>
 
      (d)   "Environmental Liabilities and Costs" shall mean all costs, expenses
            or losses, whether direct or indirect, known or unknown, current or
            potential, past, present or future, arising from, relating to or
            imposed by, under or pursuant to Environmental Laws and in any way
            based on, arising out of or otherwise in respect of (1) the
            ownership or operation by Equipe or any predecessor or affiliate, of
            the businesses of Equipe or (2) the condition or operation of any
            real property, assets, equipment or facilities owned, leased or
            operated by or related to the businesses of Equipe (including, in
            each case, the disposal or arrangement for the disposal of any Oil
            or Hazardous Material, or other substances or wastes On-site or Off-
            site), including all costs, expenses or losses (A) related to
            Remedial Actions, (B) necessary for compliance with any requirements
            of Environmental Laws and any applicable permits, licenses,
            approvals or other authorizations, (C) necessary to make full
            economic use of the property, assets, equipment and facilities of
            Equipe (assuming that Equipe's properties are operated for
            substantially the same purpose and at substantially the same levels
            as at the date hereof) and (D) related to reasonable fees,
            disbursements and expenses of counsel and consultants;

      (e)   "Off-site" shall mean any property of any Person other than those
            properties included within the definition of On-site;

      (f)   "Oil or Hazardous Material" shall mean any waste, pollutant,
            hazardous substance, toxic substance, hazardous waste, special
            waste, industrial substance or waste, petroleum or petroleum-derived
            substance or waste, asbestos-containing substance or waste,
            radioactive material or any constituent of any such substance or
            waste including any such substance regulated under or defined by any
            Environmental Law;

      (g)   "On-site" shall mean any property owned, leased, or operated by
            Equipe;

      (h)   "Release" shall mean any release, spill, emission, leaking, pumping,
            injection, deposit, disposal, discharge, dispersal, leaching,
            migration, or movement of Oil or Hazardous Material through the
            indoor or outdoor Environment; and

      (i)   "Remedial Action" shall mean all actions reasonably necessary,
            whether voluntary or involuntary, to (A) clean up, remove, treat or
            in any other way adjust Oil or Hazardous Material in the indoor or
            outdoor Environment; (B) prevent the Release of Oil or Hazardous
            Material so that they do not migrate or endanger or threaten to
            endanger public health or welfare or the indoor or outdoor
            Environment; or (C) perform investigations, remedial studies,
            restoration and post-remedial studies and monitoring on, in, under,
            above or about any assets or properties On-site or Off-site.

      Section 2.18. Insurance. Equipe and each of the Related Companies has in
force insurance against such risks and in such amounts as are reasonable and
prudent for a similarly situated corporation engaged in Equipe or such Related
Company's business, as the case may be, and as are required by applicable law.
Equipe has delivered to PRI true and complete copies of all insurance policies
or binders to which Equipe or either of the Related Companies is a party or
under which any of such companies is covered and true and complete copies of all
applications for insurance policies. All insurance policies to which Equipe or
either of the Related Companies is a party or that provide coverage to Equipe or
either of the Related Companies are in full force and effect. Since January 1,
1995, neither Equipe nor either of the Related Companies has received any
refusal of coverage, or any notice of suspension, revocation, modification or
cancellation or any other indication that any insurance policy is no longer in
full force or effect or that the issuer of any policy is not willing or able to
perform its obligations thereunder or any notice from an insured to discontinue
any coverage afforded to any of such companies and, to the

                                       16
<PAGE>
 
knowledge of Equipe and each Founder, there is no basis for the issuance of any
such notice or the taking of any such action. Equipe and each of the Related
Companies has paid all premiums due and has otherwise performed all of its
respective obligations under each such policy, except such as will not adversely
affect such company's coverage thereunder. There was no claim in excess of
$5,000 asserted under any of the insurance policies of Equipe or either of the
Related Companies for the period from January 1, 1995 to the date hereof.
Neither Equipe nor either of the Related Companies is party to, or bound by, any
Contract requiring such company (a) to name a third party as loss payee under
any insurance policy or binder held by or on behalf of such company or otherwise
requiring such company to obtain insurance for or on behalf of any third party
or (b) to provide coverage to third parties (such as, for example, under leases
or service agreements). There is no self-insurance arrangement by or affecting
Equipe or either of the Related Companies.

      Section 2.19. Employee Relations. Equipe has never been a party to a
collective bargaining agreement and has never made any final or binding offer to
a labor union or association representing its employees with respect to any
terms or conditions of employment. Equipe has never had, nor is there now
threatened, a union organizing effort, strike, picket, organized work stoppage,
organized work slowdown, or other labor trouble that has had, or could
reasonably be expected to have, an Equipe Material Adverse Effect. Equipe has
complied with all applicable laws relating to employment, equal opportunity,
nondiscrimination, immigration, wages, hours, benefits, collective bargaining,
the payment of social security and similar taxes, occupational safety and
health, and plant closings, except where the failure so to be in compliance
would not have an Equipe Material Adverse Effect.

      Section 2.20. Proprietary Rights.

            2.20.1. Equipe owns, or is licensed or otherwise possesses legally
      enforceable rights to use, all patents, trademarks, trade names, service
      marks, copyrights, and any applications therefor, maskworks, net lists,
      schematics, trade secrets, blueprints, designs, technology, know-how,
      computer software programs or applications (in both source code and object
      code form), and tangible or intangible proprietary information or material
      (excluding Commercial Software, as defined below) that are material to the
      business of Equipe as currently conducted or as proposed to be conducted
      by Equipe (the "Proprietary Rights").

            2.20.2. Schedule 2.20 sets forth a complete list of all patents,
                    -------------
      trademarks and registered copyrights, trade names and service marks, and
      any applications therefor, included in the Proprietary Rights, specifying,
      where applicable, the jurisdictions in which each such Proprietary Right
      has been issued or registered or in which an application for such issuance
      and registration has been filed, including the respective registration or
      application numbers and the names of all registered owners. No software
      product marketed by Equipe has been registered for copyright protection
      with the United States Copyright Office or any foreign offices nor has
      Equipe been requested to make any such registration. Equipe has delivered
      to PRI true and complete copies of all material licenses, sublicenses and
      other agreements (excluding End-User Licenses, as defined below) as to
      which Equipe is a party and pursuant to which Equipe or any other person
      is authorized to use any Proprietary Right or other trade secret material
      to Equipe. Equipe is not in Violation of any such license, sublicense or
      agreement except for such Violations that do not, in the aggregate,
      materially impair Equipe's rights under such license, sublicense or
      agreement. Equipe is the exclusive owner or the licensee of, with all
      right, title and interest in and to (free and clear of any and all
      Encumbrances), the Proprietary Rights, and has exclusive rights (and is
      not contractually obligated to pay any compensation to any third party in
      respect thereof) to the use thereof or the material covered thereby in
      connection with the services or products in respect of which the
      Proprietary Rights are being used. No claims with respect to the
      Proprietary Rights have

                                       17
<PAGE>
 
      been asserted or, to the knowledge of Equipe, are threatened by any person
      (a) to the effect that the business of Equipe as currently conducted or as
      proposed to be conducted by Equipe, including Equipe's design,
      development, use, import, manufacture and sale of the products, technology
      (including products or technology currently under development) or services
      of Equipe, infringes on or misappropriates any copyright, patent,
      trademark, service mark, trade secret or other proprietary rights of any
      other Person or constitutes unfair competition or trade practices under
      any Law, (b) against the use by Equipe of any trademarks, service marks,
      trade names, trade secrets, copyrights, patents, technology, know-how or
      computer software programs and applications used in Equipe's business as
      currently conducted or as proposed to be conducted by Equipe, or (c)
      challenging the ownership by Equipe, validity or effectiveness of any of
      the Proprietary Rights. All registered trademarks, service marks and
      copyrights included in the Proprietary Rights are valid and subsisting,
      all necessary registration, maintenance and renewal fees in connection
      with such Proprietary Rights have been paid and all necessary documents
      and certificates in connection with such Proprietary Rights have been
      filed with the relevant Governmental Entities for the purposes of
      maintaining such Proprietary Right. There has been, to the knowledge of
      Equipe and the Founders, no material unauthorized use, infringement or
      misappropriation of any of the Proprietary Rights by any third party,
      including any employee or former employee of Equipe. No Proprietary Right
      or product of Equipe is subject to any outstanding decree, order,
      judgment, or stipulation restricting in any manner the licensing thereof
      by Equipe. There are no Contracts between Equipe and any other Person with
      respect to Proprietary Rights under which there is any dispute known to
      Equipe regarding the scope of such Contract, or performance under such
      Contract, including with respect to any payments to be made or received by
      Equipe thereunder.

            2.20.3. To the extent that any Proprietary Rights have been
      developed or created by a third party for which Equipe has, directly or
      indirectly, paid, Equipe has a written agreement with such third party
      with respect thereto and Equipe thereby has obtained valid ownership of or
      rights sufficient for the conduct of Equipe's business to all such
      Proprietary Rights by operation of law or by valid assignment or license.
      Each employee, officer and consultant of Equipe, and, to the knowledge of
      Equipe and the Founders, each employee, officer and consultant of each of
      the Related Companies, has executed a confidentiality agreement in
      substantially the form provided to PRI, providing Equipe with title and
      ownership to Proprietary Rights developed or used by Equipe in its
      business. To the knowledge of Equipe and the Founders, no employee,
      officer or consultant of Equipe is in violation of any term of any
      employment or consulting contract, proprietary information and inventions
      agreement, non-competition agreement, or any other contract or agreement
      relating to the relationship of any such employee, officer or consultant
      with Equipe or any previous employer.

As used herein:

      (a)   "Commercial Software" means packaged commercially available software
            programs generally available to the public through retail dealers in
            computer software which have been licensed to Equipe pursuant to
            End-User Licenses and which are used in Equipe's business but are in
            no way a component of or incorporated in or specifically required to
            develop or support any of Equipe's products and related trademarks,
            technology and know-how; and

      (b)   "End-User Licenses" means any object code and end-user licenses
            granted to end-users in the ordinary course of business that permit
            use of software products without a right to modify, distribute or
            sublicense the same.

                                       18
<PAGE>
 
      Section 2.21. Certain Loans. There are no loans, receivables, advances or
similar amounts owed to Equipe by any director, officer, employee, consultant or
stockholder of Equipe, or owing by any affiliate of any director or officer of
Equipe, nor is any amount owed by Equipe to any of its directors, officers,
employees or stockholders other than normal compensation and advances in the
ordinary course of business to officers and employees for reimbursable business
expenses not exceeding $1,000 for any one individual.

      Section 2.22. Customers, Suppliers, Sales Agents and Distributors. Equipe
has provided to PRI a true and complete summary listing (a) the twenty largest
customers and vendors of Equipe (by dollar volume of purchases) for the year
ended December 31, 1996, and (b) each sales agent and each distributor of
Equipe, if any, not identified in a Contract listed in Schedule 2.10, together
                                                       -------------
with the territory and term of engagement of each such agent and distributor.
The relationships of Equipe with its suppliers, customers, sales agents and
distributors are good commercial working relationships, and no material
customer, supplier, sales agent or distributor of Equipe has canceled or
otherwise terminated, or threatened in writing to cancel or otherwise terminate,
its relationship with Equipe since January 1, 1997.

      Section 2.23. Business Activity Restrictions. There is no agreement
(noncompetition or otherwise), commitment, judgment, injunction, order or decree
to which Equipe or any officer, employee or consultant of Equipe is a party or
that otherwise is binding upon Equipe or such officer, employee or consultant
that has or reasonably could be expected to have the effect of prohibiting or
impairing any business practice of Equipe, any acquisition of property (tangible
or intangible) by Equipe or the conduct of business by Equipe. Equipe has not
entered into any agreement under which Equipe is restricted from selling,
licensing or otherwise distributing any of its technology or products to, or
providing services to, customers or potential customers or any class of
customers, in any geographic area, during any period of time or in any segment
of the market or line of business.


                    ARTICLE 3. REPRESENTATIONS AND WARRANTIES
             OF EQUIPE AND FOUNDERS REGARDING THE RELATED COMPANIES

      Equipe and each of the Founders, jointly and severally, represent and
warrant to PRI and Acquisition Corp. as follows:

      Section 3.1. Corporate Status. Each of the Related Companies (to the
extent, in the case of Equipe Japan, that the following concepts are recognized
under the laws of Japan), is a corporation duly incorporated, validly existing
and in good standing under the laws of the jurisdiction of its incorporation,
with all requisite corporate power to own, lease and operate its properties and
to carry on its business as now being conducted. None of the Related Companies
is qualified to do business as a foreign corporation in any jurisdiction other
than the jurisdiction of its incorporation and the failure to be so qualified
does not and will not have an Equipe Material Adverse Effect.

      Section 3.2. Corporate Documents. Equipe has delivered to PRI true and
complete copies of the charter documents, as amended to date, and the bylaws, as
amended to date, of each of the Related Companies. Such charter documents and
such bylaws are all in full force and effect, and, except as contemplated
hereby, no further amendment or restatement thereof has been adopted or
proposed. None of the Related Companies is in violation of any provision of its
charter or bylaws. The minute books and stock records of each of the Related
Companies, copies of which have heretofore delivered to PRI, are true and
complete and are the only minute books and stock records of each of the Related
Companies. Schedule 3.2 sets forth the current directors and officers of each of
           ------------
the Related Companies.

                                       19
<PAGE>
 
      Section 3.3. Capital Structure. The authorized capital stock of E-Machine
consists of 1,000,000 shares of common stock, of which 833,333 shares are
outstanding as of the date hereof. The authorized capital stock of Equipe Japan
consists of 4,000 shares, (Y)50,000 par value, of which 1,000 shares are
outstanding as of the date hereof. No shares of capital stock of either of the
Related Companies are held as treasury stock. The name of each holder of capital
stock of each of the Related Companies and the number of shares and class of
capital stock owned of record by each such holder as of the date hereof are set
forth on Schedule 3.3. All shares of capital stock of each of the Related
         ------------
Companies issued and outstanding as of the date hereof are duly authorized,
validly issued, fully paid and nonassessable and not subject to preemptive
rights created by statute, the charter documents or bylaws of such Related
Company or any agreement to which such Related Company is a party or is bound.
No options to purchase capital stock of either Related Company have been issued
or are outstanding. None of the Related Companies and none of the stockholders
of the Related Companies is a party to or bound by: (a) any option, warrant,
call, right or agreement obligating either of the Related Companies to issue,
deliver or sell additional shares of capital stock or to grant or modify any
such option, warrant, call, right or agreement; (b) any option, warrant, call,
right or agreement obligating any stockholder of either of the Related
Companies, in any circumstances, to deliver or sell, or offer for delivery or
sale, any shares of capital stock, including any agreement containing provisions
with respect to preemptive rights, rights of first refusal, purchase rights,
"tag-along" or "come-along" arrangements, or similar rights; (c) any voting
trust, proxy or other agreement or understanding with respect to the voting of
shares of capital stock of either of the Related Companies; and (d) any other
agreement restricting the transfer of, or affecting rights with respect to,
shares of the capital stock of either of the Related Companies.

      Section 3.4. Authority; Noncontravention.

            3.4.1. Each stockholder of a Related Company has all requisite
      corporate power to execute and deliver the Related Company Acquisition
      Agreement to which he is a party and to consummate the transactions
      contemplated hereby and thereby. Each of the Related Company Acquisition
      Agreements has been duly and validly executed and delivered by each
      stockholder of such Related Company and constitutes a legal, valid and
      binding obligation of such stockholder enforceable in accordance with its
      terms, all as may be subject to or affected by the Creditor Exception.

            3.4.2. The execution and delivery of the Related Company Acquisition
      Agreements do not, and the consummation of the transactions contemplated
      hereby and thereby will not, result in any Violation of any provision of
      (a) the charter documents, as amended to date, or the bylaws, as amended
      to date, of the respective Related Companies or (b) any loan or credit
      agreement, note, mortgage, indenture, lease, employee benefit plan, other
      agreement, obligation, instrument, permit, concession, franchise, license,
      judgment, order, decree, statute, law, ordinance, rule or regulation
      applicable to either of the Related Companies or any stockholder of such
      Related Company or to the properties or assets of any of them. No consent,
      approval, order or authorization of, or registration, declaration or
      filing with, any Governmental Entity is required by or with respect to
      either of the Related Companies or any stockholder of such Related Company
      in connection with the execution and delivery of the Related Company
      Acquisition Agreements or the consummation of the transactions
      contemplated hereby and thereby.

      Section 3.5. Investments. None of the Related Companies directly or
indirectly owns, or has the right to acquire, any equity interest or investment
in the equity capital of any Person (as defined below). None of the Related
Companies has any obligation to acquire any class of securities (including debt
securities) issued by any Person. None of the Related Companies has owned or
controlled any subsidiary corporation or any stock or other interest in any
Person. None of the Related Companies is a

                                       20
<PAGE>
 
party to, or has been a party to, or bound by any partnership, joint venture,
voluntary association, cooperative or business trust agreement.

      Section 3.6. Related Company Financial Statements.

            3.6.1  E-Machine. The unaudited balance sheets of E-Machine at
      September 30, 1997 and December 31, 1996 and 1995, and the related
      unaudited income statements of E-Machine for the nine-month period ended
      September 30, 1997 and the two-year period ended December 31, 1996,
      attached as Schedule 3.6.1 hereto, fairly present, in all material
                  --------------
      respects, the financial position and results of operations of E-Machine at
      the dates and for the periods stated therein.

            3.6.2  Equipe Japan. The unaudited balance sheets of Equipe Japan at
      September 30, 1997 and December 31, 1996 and the related unaudited income
      statements of Equipe Japan for the nine-month and one-year period then
      ended, respectively, attached as Schedule 3.6.2 hereto, fairly present, in
                                       --------------
      all material respects, the financial position and results of operations of
      Equipe Japan at the dates and for the period stated therein.


            ARTICLE 4.  ADDITIONAL REPRESENTATIONS AND WARRANTIES OF THE
FOUNDERS

      Each Founder, severally and not jointly, represents, warrants and
covenants to PRI as follows:

      Section 4.1. Ownership of Equipe Common. Such Founder has good and
marketable title to the shares of Equipe Common owned by such Founder as shown
on Schedule 2.3, free and clear of any and all Encumbrances.
   ------------

      Section 4.2. Authority. Such Founder has all requisite right to enter into
this Agreement, each of the Registration Rights Agreement and such Founder's
Irrevocable Proxy (as defined in Section 9.2.4), and any Affiliate's Agreement
and any Employment Agreement to which such Founder is to be a party (each as
defined herein and collectively "such Founder's Corollary Agreements") and to
consummate the transactions contemplated hereby and thereby. This Agreement has
been duly and validly executed and delivered by such Founder and, assuming the
due and valid execution and delivery of this Agreement by the other parties
hereto, constitutes a legal, valid and binding obligation of such Founder
enforceable in accordance with its terms, all as may be subject to or affected
by the Creditor Exception. As of the Closing Date, each of such Founder's
Corollary Agreements will be duly and validly executed and delivered by such
Founder and will constitute a legal, valid and binding obligation of such
Founder enforceable in accordance with its terms, all as may be subject to or
affected by the Creditor Exception. The execution and delivery of this Agreement
do not, and the execution of such Founder's Corollary Agreements and the
consummation of the transactions contemplated hereby and thereby will not,
result in any Violation of any provision of any loan or credit agreement, note,
mortgage, indenture, lease, employee benefit plan, other agreement, obligation,
instrument, permit, concession, franchise, license, judgment, order, decree,
statute, law, ordinance, rule or regulation applicable to such Founder or the
properties or assets of such Founder.

      Section 4.3. Investment in PRI Common.

            4.3.1. Such Founder is an accredited investor as defined in Rule 501
      under the Securities Act of 1933, as amended (the "Securities Act"). Such
      Founder (together with such Founder's financial and other advisors, if
      any) has such knowledge and expertise in financial and business matters
      that such Founder is capable of evaluating the merits and risks of the
      exchange of such

                                       21
<PAGE>
 
      Founder's shares of Equipe Common for shares of PRI Common pursuant to
      this Agreement and of protecting such Founder's interests in connection
      therewith. Such Founder has the ability to bear the economic risk of the
      investment in PRI Common.

            4.3.2. Such Founder has reviewed a copy of the SEC Documents, as
      defined in Section 5.4, and has had an opportunity to discuss PRI's
      business, management and financial affairs with PRI's management.

            4.3.3. Such Founder is acquiring shares of PRI Common for such
      Founder's own account and not with a view to, or for resale in connection
      with, any distribution thereof in violation of applicable law, and such
      Founder has no present intention of selling, granting any participation
      in, or otherwise distributing the same in violation of applicable law.
      Such Founder understands that the shares of PRI Common to be received by
      such Founder pursuant to this Agreement have not been registered under the
      Securities Act by reason of a specific exemption from the registration
      provisions of the Securities Act that depends upon, among other things,
      the bona fide nature of such Founder's investment intent and the accuracy
      of such Founder's representations, warranties and covenants as expressed
      herein. Such Founder understands that the shares of PRI Common to be
      received by such Founder pursuant to this Agreement are characterized as
      "restricted securities" under the Securities Act inasmuch as they are
      being acquired from PRI in a transaction not involving a public offering
      and that under such laws and applicable regulations such shares may be
      resold without registration under the Securities Act only in certain
      limited circumstances. Such Founder acknowledges that the shares of PRI
      Common must be held indefinitely unless subsequently registered under the
      Securities Act (pursuant to the Registration Rights Agreement referred to
      below or otherwise) or an exemption from such registration is available.
      Such Founder is aware of the provisions of Rule 144 under the Securities
      Act which permit limited resale of shares purchased in a private placement
      subject to the satisfaction of certain conditions, including the existence
      of a public market for the shares, the availability of certain current
      public information about the Company, the resale occurring not less than
      two years after a party has purchased and paid for the security to be
      sold, the sale being effected through a "broker's transaction" or in
      transactions directly with a "market maker" (as provided by Rule 144(f)
      under the Securities Act) and the number of shares being sold during any
      three-month period not exceeding specified limitations.

            4.3.4. It is understood that each certificate representing shares of
      PRI Common received by such Founder pursuant to this Agreement shall bear
      a legend substantially to the following effect (in addition to any legend
      required under applicable state securities laws):

                  "THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE
                  SECURITIES ACT OF 1933. THEY MAY NOT BE SOLD, OFFERED FOR
                  SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF A REGISTRATION
                  STATEMENT IN EFFECT WITH RESPECT TO THE SECURITIES UNDER SUCH
                  ACT OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT
                  SUCH REGISTRATION IS NOT REQUIRED."

      Section 4.4. Government Consents. No consent, approval, order or
authorization of, or registration, declaration or filing with any Governmental
Entity is required by or with respect to such Founder in connection with the
execution and delivery of this Agreement or such Founder's Corollary Agreements
or the consummation of the transactions contemplated hereby or thereby.

                                       22
<PAGE>
 
      Section 4.5. Finder's Fees. Such Founder has not incurred any liability,
contingent or otherwise, for brokerage fees, finder's fees, agent's commissions,
financial advisory fees or other similar forms of compensation in connection
with this Agreement or any of the transactions contemplated hereby.


    ARTICLE 5.  REPRESENTATIONS AND WARRANTIES OF PRI AND ACQUISITION CORP.

      Each of PRI and Acquisition Corp., jointly and severally, represents and
warrants to Equipe as follows:

      Section 5.1.   Corporate Status. PRI is a corporation duly incorporated,
validly existing and in good standing under the laws of the Commonwealth of
Massachusetts, and Acquisition Corp. is a corporation duly incorporated, validly
existing and in good standing under the laws of the State of California. Each of
PRI and Acquisition Corp. has all requisite corporate power to own, lease and
operate its properties and to carry on its business as now being conducted. Each
of PRI and Acquisition Corp. is duly qualified to do business as a foreign
corporation, and is in good standing, in each other jurisdiction in which it
owns or leases property or conducts business, except where the failure to be so
qualified does not have any effect that is, or is reasonably likely to be,
materially adverse to the business, results of operations or financial condition
of PRI and its subsidiaries, taken as a whole, other than such effects resulting
from (i) general economic changes affecting the semiconductor capital equipment
industry in general or (ii) this Agreement or the transactions contemplated
hereby or the announcement hereof (a "PRI Material Adverse Effect").

      Section 5.2.   Capital Structure.

            5.2.1.   The authorized and outstanding capital stock of PRI
      consists of (a) 400,000 shares of preferred stock, $.01 par value, none of
      which is issued and outstanding, and (b) 24,000,000 shares of PRI Common,
      of which 14,570,920 shares were issued and outstanding as of June 29,
      1997. All of the outstanding shares of PRI Common are, and the shares of
      PRI Common when issued and delivered to the Holders in accordance with
      this Agreement will be, duly authorized, validly issued, fully paid and
      nonassessable and not subject to preemptive rights created by statute,
      PRI's articles of organization or bylaws, or any agreement to which PRI is
      a party or is bound. All outstanding shares of PRI Common are listed on
      the Nasdaq National Market, and there are no proceedings to revoke or
      suspend such listing.

            5.2.2.   The authorized capital stock of Acquisition Corp. consists
      of 1,000 shares of common stock, $.01 par value, all of which are
      outstanding and held by PRI of record and beneficially.

      Section 5.3.   Authority.

            5.3.1.   PRI has all requisite corporate power to execute and
      deliver this Agreement and the Registration Rights Agreement and
      Employment Agreements (collectively the "PRI Corollary Agreements") and to
      consummate the transactions contemplated hereby and thereby. The execution
      and delivery of this Agreement and the PRI Corollary Agreements, and the
      consummation of the transactions contemplated hereby and thereby, have
      been duly and validly authorized by all requisite corporate action on the
      part of PRI, and no other corporate proceedings on the part of PRI are
      necessary to authorize the execution and delivery of this Agreement or any
      of the PRI Corollary

                                      23
<PAGE>
 
      Agreements or to consummate the transactions contemplated hereby and
      thereby. The board of directors of PRI has unanimously approved the Merger
      and this Agreement. This Agreement has been duly and validly executed and
      delivered by PRI and, assuming the due and valid execution and delivery of
      this Agreement by the other parties hereto, constitutes a legal, valid and
      binding obligation of PRI enforceable in accordance with its terms, all as
      may be subject to or affected by the Creditor Exception. As of the Closing
      Date, each of the PRI Corollary Agreements will be duly and validly
      executed and delivered by PRI and will constitute a legal, valid and
      binding obligation of PRI enforceable in accordance with its terms, all as
      may be subject to or affected by the Creditor Exception. The execution and
      delivery of this Agreement do not, and the execution and delivery of the
      PRI Corollary Agreements and the consummation of the transactions
      contemplated hereby and thereby will not, result in any Violation of any
      provision of (a) the articles of organization or bylaws of PRI or (b) any
      loan or credit agreement, note, mortgage, indenture, lease, employee
      benefit plan, other agreement, obligation, instrument, permit, concession,
      franchise, license, judgment, order, decree, statute, law, ordinance, rule
      or regulation applicable to PRI or its properties or assets, other than
      Violations that do not and will not, individually or in the aggregate,
      have a PRI Material Adverse Effect.

            5.3.2.   Acquisition Corp. has all requisite corporate power to
      execute and deliver this Agreement and to cause its officers to execute
      and deliver the Officers' Certificate of Acquisition Corp. and to
      consummate the transactions contemplated hereby and thereby. The execution
      and delivery of this Agreement and the Officers' Certificate of
      Acquisition Corp., and the consummation of the transactions contemplated
      hereby and thereby, have been duly and validly authorized by all requisite
      corporate action on the part of Acquisition Corp., and no other corporate
      proceedings on the part of Acquisition Corp. are necessary to authorize
      the execution and delivery of this Agreement or the Officers' Certificate
      of Acquisition Corp. or to consummate the transactions contemplated hereby
      and thereby. The board of directors and sole stockholder of Acquisition
      Corp. have unanimously approved the Merger and this Agreement, subject to
      the approval of the stockholders of PRI. This Agreement has been duly and
      validly executed and delivered by Acquisition Corp., and this Agreement
      constitutes a legal, valid and binding obligation of Acquisition Corp.
      enforceable in accordance with its terms, all as may be subject to or
      affected by the Creditor Exception. As of the Closing Date, the Officers'
      Certificate of Acquisition Corp. will be duly and validly executed and
      delivered by Acquisition Corp. and will constitute a legal, valid and
      binding obligation of PRI enforceable in accordance with its terms, all as
      may be subject to or affected by the Creditor Exception. The execution and
      delivery of this Agreement do not, and the execution and delivery of the
      Officers' Certificate of Acquisition Corp. and the consummation of the
      transactions contemplated hereby and thereby will not, result in any
      Violation of any provision of (a) the articles of incorporation or bylaws
      of Acquisition Corp. or (b) any loan or credit agreement, note, mortgage,
      indenture, lease, employee benefit plan, other agreement, obligation,
      instrument, permit, concession, franchise, license, judgment, order,
      decree, statute, law, ordinance, rule or regulation applicable to
      Acquisition Corp. or its properties or assets, other than Violations that
      do not and will not, individually or in the aggregate, have a PRI Material
      Adverse Effect.

            5.3.3.   No consent, approval, order or authorization of, or
      registration, declaration or filing with any Governmental Entity is
      required by or with respect to PRI or Acquisition Corp. in connection with
      the execution and delivery of this Agreement by PRI and Acquisition Corp.
      or the consummation of the transactions contemplated hereby, except for
      (a) the filing of the Certificate of Satisfaction, a copy of this
      Agreement and the executed original Officers' Certificates with the
      Secretary of State of the State of California, (b) such other filings,
      consents, approvals, orders, authorizations, registrations and
      declarations as may be required under applicable federal and state
      securities laws (collectively "Securities Filings"), which Securities
      Filings will be made by the

                                      24
<PAGE>
 
      Effective Time or as soon thereafter as required by applicable law, (c)
      the filing of such reports under the Securities Exchange Act of 1934, as
      amended (the "Exchange Act"), as may be required in connection with this
      Agreement and the transactions contemplated hereby, and (d) such other
      consents, authorizations, filings, approvals and registrations that if not
      obtained or made would not have a PRI Material Adverse Effect or a
      material adverse effect on the transactions contemplated by this
      Agreement.

      Section 5.4.   SEC Documents. PRI has furnished to Equipe true and
complete copies of PRI's Annual Report on Form 10-K, as amended, for the fiscal
year ended September 30, 1996, the definitive proxy statements for the annual
meeting of stockholders of PRI held on February 7, 1997 and the special meeting
of stockholders of PRI held on April 22, 1997 and its Quarterly Reports on Form
10-Q for the fiscal quarters ended December 29, 1996, March 30, 1997 and June
29, 1997 (collectively, the "SEC Documents"). As of their respective filing
dates, (a) each of the SEC Documents complied in all material respects with the
requirements of the Exchange Act and (b) none of the SEC Documents contained any
untrue statement of a material fact or omitted to state a material fact required
to be stated therein or necessary in order to make the statements made therein,
in light of the circumstances under which they were made, not misleading. The
consolidated financial statements and notes thereto of PRI included in the SEC
Documents have been prepared in accordance with GAAP, applied on a consistent
basis throughout the periods involved (except that the unaudited financial
statements do not contain all the notes that may be required by GAAP and are
subject to normal and recurring year-end adjustments that are not expected to be
material in amount), and fairly present in all material respects the
consolidated financial position of PRI and its subsidiaries as at the dates
thereof and their consolidated results of operations and cash flows for the
periods covered therein.

      Section 5.5.   Absence of Certain Events and Undisclosed Liabilities.
Since June 29, 1997, (a) PRI has not declared or paid any dividend or other
distribution (whether in cash, stock or property or any combination thereof) in
respect of the capital stock of PRI, (b) there has been no PRI Material Adverse
Effect, (c) neither the business, properties nor assets of PRI have suffered a
material adverse loss (whether or not covered by insurance) as the result of
fire, explosion, earthquake, accident, labor trouble, condemnation or taking of
property by any Governmental Entity, flood, windstorm, pestilence, embargo,
riot, act of God or the public enemy or any other casualty or similar event, (d)
PRI has not materially changed any of its accounting methods, principles or
procedures, and (e) PRI has not entered into any agreement to do any of the
foregoing. PRI has no liabilities, asserted liabilities or obligations of any
nature, whether absolute, accrued, contingent or otherwise, other than (a) those
disclosed or reflected in the SEC Documents or disclosed in accordance with this
Agreement, (b) those incurred since June 29, 1997 in the ordinary course of
PRI's business consistent with past practice, and (c) liabilities or obligations
that are not material, individually or in the aggregate, or that are not
required under GAAP to be disclosed or reflected in the financial statements
which are included in the SEC Documents.

      Section 5.6. Litigation. Except as disclosed in the SEC Documents, there
is no claim, dispute, action, suit, appeal, legal, administrative or arbitral
proceeding, or investigation, at law or in equity, pending against PRI, or
involving any of its assets or properties, before any court, agency, authority,
arbitration panel or other tribunal, and, to the knowledge of PRI, none has been
threatened, in each case that could be reasonably expected to have a PRI
Material Adverse Effect. No judgment has been entered by, and no claim, dispute,
action, suit, appeal, legal, administrative or arbitral proceeding, or
investigation, at law or in equity, is pending or, to the knowledge of PRI or
Acquisition Corp., threatened that materially and adversely affects, or could
materially and adversely affect, the ability of PRI or Acquisition Corp. to
perform under this Agreement or that seeks to enjoin or prohibit any of the
transactions contemplated by this Agreement.


                                      25
<PAGE>
 
      Section 5.7.   Compliance with Applicable Laws. The business of PRI is not
being conducted in violation of or conflict with any Law, except such violations
or conflicts as do not and will not, individually or in the aggregate, have a
PRI Material Adverse Effect. As of the date of this Agreement, no investigation
or review by any Governmental Entity with respect to PRI is pending or, to the
knowledge of PRI, threatened.

      Section 5.8.   Taxes. PRI has timely filed in accordance with applicable
law all Tax Returns required to be filed by or with respect to it, its
operations and assets other than Tax Returns the failure to file which would not
cause a PRI Material Adverse Effect. All Taxes shown as due on such Tax Returns
have been paid. All Tax Returns filed by PRI with respect to Taxes were prepared
in compliance with all applicable laws and regulations, other than such
noncompliance as would not cause a PRI Material Adverse Effect, and were true
and complete in all material respects as of the date on which they were filed or
as subsequently amended to the date hereof.

      Section 5.9.   Proprietary Rights.

            5.9.1.   PRI owns, or is licensed or otherwise possesses legally
      enforceable rights to use, all patents, trademarks, trade names, service
      marks, copyrights, and any applications therefor, maskworks, net lists,
      schematics, trade secrets, blueprints, designs, technology, know-how,
      computer software programs or applications (in both source code and object
      code form), and tangible or intangible proprietary information or material
      (excluding Commercial Software, as defined in Section 2.20 above) that are
      material to the business of PRI as currently conducted or as proposed to
      be conducted by PRI (the "PRI Proprietary Rights").

            5.9.2.   PRI is not in Violation of any license, sublicense or
      agreement as to which PRI is a party and pursuant to which PRI or any
      other person is authorized to use any PRI Proprietary Right except for
      such Violations that do not, in the aggregate, materially impair PRI's
      rights under such license, sublicense or agreement. Except as disclosed in
      the SEC Documents, no claims with respect to the PRI Proprietary Rights
      have been asserted or, to the knowledge of PRI, are threatened by any
      person (a) to the effect that the business of PRI as currently conducted
      or as proposed to be conducted by PRI, including PRI's design,
      development, use, import, manufacture and sale of the products, technology
      (including products or technology currently under development) or services
      of PRI, infringes on or misappropriates any copyright, patent, trademark,
      service mark, trade secret or other proprietary rights of any other Person
      or constitutes unfair competition or trade practices under any Law, (b)
      against the use by PRI of any trademarks, service marks, trade names,
      trade secrets, copyrights, patents, technology, know-how or computer
      software programs and applications used in PRI's business as currently
      conducted or as proposed to be conducted by PRI, or (c) challenging the
      ownership by PRI, validity or effectiveness of any of the PRI Proprietary
      Rights.

      Section 5.10. Finder's Fees. Neither PRI nor Acquisition Corp. has
incurred any liability, contingent or otherwise, for brokerage fees, finder's
fees, agent's commissions, financial advisory fees or other similar forms of
compensation in connection with this Agreement or any of the transactions
contemplated hereby, other than as described in PRI's engagement letter with
Morgan Stanley & Co. Incorporated dated October 21, 1997, a copy of which has
been provided to Equipe.



                                      26
<PAGE>
 
           ARTICLE 6.  COVENANTS OF EQUIPE AS TO CONDUCT OF BUSINESS

      During the period from the date of this Agreement and continuing until the
Closing, Equipe agrees, and each Founder agrees to take such action as may be
necessary to cause Equipe to agree, that, except as expressly contemplated by
this Agreement (including those actions necessary to effect the Related Company
Acquisitions) or as consented to by PRI in writing:

      Section 6.1.   Ordinary Course. Equipe shall carry on its business in the
ordinary course consistent with prior practice, including the payment of all
debts and taxes owed by Equipe in substantially the same manner as heretofore.

      Section 6.2.   Corporate Documents. Equipe shall not amend the Equipe
Charter or the Equipe Bylaws.

      Section 6.3.   Capital Structure. Equipe shall not (a) declare or pay any
dividend or other distribution (whether in cash, stock or property or any
combination thereof) in respect of Equipe Common, (b) issue, deliver or sell, or
authorize the issuance, delivery or sale of, any shares of capital stock of any
class, or any options, warrants, calls, rights or agreements that obligate
Equipe to issue, deliver or sell additional shares of Equipe Common or to grant,
extend or enter into any such option, warrant, call, right or agreement, (c)
split, combine or reclassify any of the Equipe Common, or (d) purchase, redeem
or otherwise acquire, directly or indirectly, any shares of Equipe Common.
Notwithstanding the foregoing, each of Equipe and E-Machine shall be entitled,
prior to the Closing, to make a distribution or distributions to its
stockholders in such amount or amounts as, when added to prior distributions, if
any, made by such entity to such stockholders between January 1, 1997 and the
Closing, will not exceed the aggregate state and federal income tax obligations
of such stockholders in respect of the income of such entity from January 1,
1997 through the end of the tax year ending on the date of the Closing, as
estimated in good faith by Equipe and its independent accountants (the "Current
Year Taxes"). Each such stockholder shall furnish to Equipe, promptly after
their filing with the appropriate tax authorities, copies of his final state and
federal income tax returns for 1997 and any subsequent tax year ending on the
date of the Closing. If the aggregate amount of the distributions made to any
such stockholder by Equipe or E-Machine since January 1, 1997 exceeds such
stockholder's Current Year Taxes attributable to such entity, the amount of such
excess shall be refunded by such stockholder to Equipe within ten business days
of his filing of the last such return.

      Section 6.4.   Compliance with Applicable Laws. Equipe shall duly comply
in all material respects with all applicable laws, ordinances and regulations
and all applicable orders, judgments, injunctions, awards and decrees of
Governmental Entities.

      Section 6.5.   Investments and Acquisitions. Equipe shall not (a) acquire
any equity interest or investment exceeding five percent of the equity capital
of any Person, (b) acquire by merging or consolidating with, by purchasing a
substantial portion of the assets of, or by any other manner, any Person, (c)
otherwise acquire or license any assets that are material, individually or in
the aggregate, to Equipe except in the ordinary course of business consistent
with prior practice or (d) enter into any partnership, joint venture, voluntary
association, cooperative or business trust agreement or arrangement, other than
in the ordinary course of business consistent with prior practice.

      Section 6.6.   Indebtedness. Equipe shall not, and shall not propose to,
incur any Indebtedness for borrowed money, incur any other Indebtedness except
in the ordinary course of business, or guarantee any Indebtedness of others.
Equipe shall not pay, discharge or satisfy, in an amount in excess of $50,000

                                      27
<PAGE>
 
(in the aggregate), any claims, liabilities or obligations reflected or reserved
against in the 1997 Balance Sheet except in the ordinary course of business
consistent with past practice.

      Section 6.7.   Litigation. Equipe shall not commence any litigation.
Equipe shall cooperate and consult with PRI with respect to all matters
regarding any proceeding set forth on any Schedule relating to Section 2.8 of
this Agreement, including any settlement proposed by any Person (including PRI),
and Equipe shall not take any significant actions with respect to such
proceedings (including the entering into of any such settlement) without the
prior approval of PRI, which approval shall not be unreasonably withheld.

      Section 6.8.   Properties. Equipe shall not lease or otherwise dispose of
any of its property, individually or in the aggregate, except in the ordinary
course of business consistent with prior practice.

      Section 6.9.   Contracts. Equipe shall not (a) enter into any Contract or
engage in any transaction not in the ordinary course of business consistent with
past practice, (b) amend or otherwise modify any Contract pursuant to which any
other party is granted marketing, distribution or similar rights of any type or
scope with respect to any products of Equipe, (c) amend or otherwise modify any
Contract except in the ordinary course of business consistent with past
practice, or (d) do or omit to do any act or permit any act or omission to act,
which act or omission will result in a Violation of any material provision of
any material Contract.

      Section 6.10.  Taxes. Equipe shall not make or change any material
election in respect of Taxes, adopt or change any accounting method in respect
of Taxes, enter into any closing agreement, settle any claim or assessment in
respect of Taxes, or consent to any extension or waiver of the limitation period
applicable to any claim or assessment in respect of Taxes.

      Section 6.11.  Benefit Plans. Equipe shall not adopt any Benefit Plan or
amend any Benefit Plan in any material respect.

      Section 6.12.  Insurance. Equipe shall maintain insurance of the types, in
the amounts and with deductibles and exclusions consistent with past business
practice.

      Section 6.13.  Employee Matters. Equipe shall not (a) adopt any collective
bargaining agreement, (b) grant any severance or termination pay to any
director, officer or other employee of Equipe, (c) grant any general or uniform
increase in the rates of pay of employees of Equipe or in the benefits under any
bonus plan or other compensation arrangements or (d) increase the compensation
payable or to become payable to any officer or key salaried employee.

      Section 6.14.  Proprietary Rights. Equipe shall not transfer to any Person
any rights to Proprietary Rights, except in the ordinary course of business
consistent with past practice.

      Section 6.15.  General. Neither Equipe nor any Founder shall take, propose
to take, or agree in writing or otherwise to take any of the actions described
in Sections 6.1 through 6.14 or any other action that would prevent Equipe or
any Founder from performing, or cause Equipe or any Founder not to perform, its
covenants and other obligations hereunder.



                                      28
<PAGE>
 
             ARTICLE 7. COVENANTS OF PRI AS TO CONDUCT OF BUSINESS

      During the period from the date of this Agreement and continuing until the
Closing, PRI agrees that, except as expressly contemplated by this Agreement
(including those actions necessary to effect the Related Company Acquisitions)
or as consented to by Equipe in writing:

      Section 7.1.   Ordinary Course. PRI shall carry on its business in the
ordinary course consistent with prior practice, including the payment of all
debts and taxes owed by PRI in substantially the same manner as heretofore.

      Section 7.2.   Corporate Documents. PRI shall not amend its articles of
organization or its bylaws; provided, however, that PRI may amend its articles
of organization to increase the number of shares of PRI Common that PRI is
authorized to issue.

      Section 7.3.   Capital Structure. PRI shall not (a) declare or pay any
dividend or other distribution (whether in cash, stock or property or any
combination thereof) in respect of PRI, (b) issue, deliver or sell, or authorize
the issuance, delivery or sale of, any shares of capital stock of any class, or
any options, warrants, calls, rights or agreements that obligate PRI to issue,
deliver or sell additional shares of PRI Common, or to grant, extend or enter
into any such option, warrant, call, right or agreement, other than in the
ordinary course of PRI's business pursuant to its 1984 Incentive Stock Option
Plan, 1994 Incentive and Nonqualified Stock Option Plan and 1994 Employee Stock
Purchase Plan, (c) split, combine or reclassify any of the PRI Common, or (d)
purchase, redeem or otherwise acquire, directly or indirectly, any shares of PRI
Common.

      Section 7.4.   Compliance with Applicable Laws. PRI shall duly comply in
all material respects with all applicable laws, ordinances and regulations and
all applicable orders, judgments, injunctions, awards and decrees of
Governmental Entities.

      Section 7.5.   Investments and Acquisitions. Except as contemplated by
this Agreement, PRI shall not engage in any acquisition of the equity capital or
assets of any Person in a transaction requiring the approval of the stockholders
of PRI.

      Section 7.6.   General. PRI shall not take, propose to take, or agree in
writing or otherwise to take any of the actions described in Sections 7.1
through 7.5 or any other action that would prevent PRI from performing, or cause
PRI not to perform, its covenants and other obligations hereunder.


                        ARTICLE 8. ADDITIONAL COVENANTS

      Section 8.1.   Proxy Statement. As soon as reasonably practicable after
the execution of this Agreement, PRI shall prepare and file with the Securities
and Exchange Commission a proxy statement (as amended or supplemented, the
"Proxy Statement") to be sent to the stockholders of PRI in connection with the
solicitation of proxies for the meeting of PRI's stockholders to consider the
Merger (the "PRI Stockholders' Meeting").

      Section 8.2.   PRI Stockholders' Meeting. Promptly after the date hereof,
PRI shall take all action necessary in accordance with the Massachusetts
Business Corporation Law, its articles of organization and its bylaws to convene
the PRI Stockholders' Meeting to be held as soon as reasonably practicable for
the purpose of voting upon this Agreement and the Merger.


                                      29
<PAGE>
 
      Section 8.3.   Related Company Acquisitions. PRI, Equipe and the Founders
shall take any and all actions reasonably necessary to validly effect the
Related Company Acquisitions.

      Section 8.4.   Access to Information. Equipe shall afford to PRI, and PRI
shall afford to Equipe, and each shall cause its independent accountants to
afford to the other party and its accountants, counsel and other
representatives, reasonable access during normal business hours during the
period prior to the Closing to all of the other party's properties, books,
contracts, commitments and records. During such period, each party shall use
reasonable efforts to furnish promptly to the other party all other information
concerning the business, properties and personnel of such party as the other
party may reasonably request.

      Section 8.5.   Confidentiality.

            8.5.1.   For purposes of this Section 8.5, a "party" shall refers to
      (i) collectively, Equipe (prior to the Closing Date) and each of the
      Founders and (ii) together, PRI and Acquisition Corp. Each party shall
      treat as confidential, and shall cause its accountants, counsel and other
      representatives to treat as confidential, all documents and information
      concerning the other party furnished by the other party to such party
      (including documents and information furnished prior to the date hereof)
      in connection with the transactions contemplated by this Agreement, except
      to the extent that such information or documents: (a) at the time of its
      disclosure to the receiving Party by or on behalf of the disclosing party
      is already known or available to the receiving party, provided that the
      receiving party is not subject to similar restrictions of confidentiality
      as set forth herein with a third party with respect to such information;
      (b) is or becomes known or available to the public other than as a result
      of an unauthorized disclosure by the receiving party or its directors,
      officers, employees, agents or representatives; (c) is or becomes known or
      available to the receiving party without similar restrictions of
      confidentiality as set forth herein from a source other than the
      disclosing party, provided that such source is not known by the receiving
      party, after reasonable inquiry, to be bound by a confidentiality
      agreement with, or other obligation of secrecy to, the disclosing party
      that would prohibit such disclosures to the receiving party by such other
      party; (d) is independently generated by the receiving party and not
      derived from confidential information; or (e) is required to be disclosed
      by the receiving party by law, regulation, court order or other legal
      process. Subject to the foregoing, each party will not release or disclose
      such information or documents to any Person other than its representatives
      in connection with this Agreement and will not use such information for
      purposes other than as contemplated by this Agreement. In the event of the
      termination of this Agreement, each party hereto shall, and shall cause
      its representatives to, deliver to the other party the originals of all
      documents obtained by such party or on behalf of such party from the other
      party in connection with this Agreement, whether so obtained before or
      after the execution hereof, and such party shall, and shall cause its
      representatives to, destroy all copies thereof.

            8.5.2.   Except as contemplated by Section 8.6, no party shall
      disclose to any Person (other than the party's representatives) any
      information regarding the transactions contemplated by this Agreement,
      including the existence and terms of this Agreement. Prior to the time
      that this Agreement is publicly announced in a press release in accordance
      with Section 8.6 or is disclosed in a filing made by PRI with the
      Securities and Exchange Commission pursuant to the Securities Act or the
      Exchange Act, no Founder shall, directly or indirectly, buy, sell or
      otherwise trade in any shares of PRI Common or advise any other Person as
      to any trading of PRI Common.

            8.5.3.   The agreements contained in this Section 8.5 shall survive
      any termination of this Agreement and remain in effect for a period of
      five years from the date hereof.

                                      30
<PAGE>
 
      Section 8.6.    Public Disclosure. Any press release or other public
disclosure of information regarding the transactions contemplated by this
Agreement (including the existence and terms of this Agreement) shall be
developed by PRI, subject to (a) the approval of Equipe, which approval shall
not be unreasonably withheld, or (b) if such disclosure is required in order for
PRI to comply with applicable law, reasonable consultation with Equipe.

      Section 8.7.   Exclusivity. Neither Equipe nor any Founder shall, nor
shall Equipe permit any of its representatives or affiliates to, directly or
indirectly, (a) solicit, initiate or participate in discussions or negotiations
or otherwise cooperate in any way with, or provide any information to, any
Person (other than PRI) or any group of Persons concerning any tender offer,
exchange offer, merger, business combination, sale of substantial assets, sale
of shares of capital stock or similar transaction involving such party or (b)
enter into any agreement to effect, or effect, any such transaction (other than
the transactions contemplated hereby). Equipe and each Founder shall immediately
notify PRI in writing of any of the events referred to in this Section 8.7,
including a summary of the material terms of any offer made or proposed in
connection therewith.

      Section 8.8.   Securities Laws. PRI shall take such steps as may be
necessary to comply with the securities laws of the United States and the
securities and Blue Sky laws of all other jurisdictions that are applicable in
connection with the Merger. Equipe shall use its best efforts to assist PRI as
may be necessary to comply with such laws.

      Section 8.9.   Option Assumption; S-8 Registration Statement. PRI will
take such action as is necessary to effect the assumption of the Equipe Options
in accordance with Section 1.4.2 above. PRI will file a registration statement
on Form S-8 covering the shares of PRI Common issuable upon exercise of the
assumed Equipe Options no later than January 4, 1998 or, if later, five business
days after the Closing, and will use its best efforts to cause such registration
statement to become and remain effective for so long as any of the Equipe
Options remain outstanding.

      Section 8.10.  State Statutes. If any state takeover law shall become
applicable to the transactions contemplated by this Agreement, PRI and its board
of directors or Equipe and its board of directors, as the case may be, shall use
their best efforts to obtain such approvals and take such actions as are
necessary so that the transactions contemplated by this Agreement may be
consummated as promptly as practicable on the terms contemplated by this
Agreement and otherwise to minimize the effects of such state takeover law on
the transactions contemplated by this Agreement.

      Section 8.11.  Pooling Accounting. No party to this Agreement shall
knowingly take any action, directly or indirectly, that would cause the Merger
to fail to qualify as a pooling of interests, including taking any action that
would alter the equity interests of Equipe in a way that would prohibit pooling
of interests treatment for the Merger.

      Section 8.12.  Expenses. If the Merger is not consummated, each party
will be and remain responsible for its costs and expenses, including fees and
disbursements of consultants, investment bankers and other financial advisors,
counsel and accountants, and the costs incurred in seeking necessary consents,
in connection with the acquisition of Equipe by PRI.

      Section 8.13.  Consents; Further Assurances. The parties shall use all
commercially reasonable efforts to obtain any consent, authorization, order or
approval of, or any exemption by, any Governmental Entity, or other third party,
required to be obtained or made by such party in connection with the taking of
any action contemplated by this Agreement. No party shall take any action that
would, or is reasonably likely to, result in any of its representations and
warranties set forth in this Agreement being

                                      31
<PAGE>
 
untrue or in any of the conditions precedent set forth in Article 9 not being
satisfied. At any time and from time to time after the Closing, the parties
agree to cooperate with each other to execute and deliver such other documents,
instruments or transfer or assignment, files, books and records, and to do all
such further acts and things, as may be reasonably required to carry out the
transactions contemplated hereby.

      Section 8.14.  Updates of Schedules. Equipe and the Founders may, from
time to time after the date hereof but not later than five days before the
Closing Date, prepare and deliver to PRI updates to one or more of the Schedules
hereto disclosing any changes thereto required in respect of matters not known
to Equipe or the Founders on or prior to the date of execution and delivery
hereof. In the event the Closing does not occur, the initial Schedules shall
constitute the Schedules to be used in determining any inaccuracy in, or breach
of, any representations or warranties of Equipe and the Founders pursuant to
Section 11.2. In the event the Closing occurs, the final versions of the
Schedules as of the Closing Date shall supersede the initial Schedules and shall
constitute the definitive Schedules for all purposes of Article 10.

      Section 8.15.  Nomination of Director. PRI hereby agrees that, at each
annual or special meeting of its stockholders at which directors of PRI are to
be elected, PRI will include as one of the nominees for whose election proxies
are solicited on behalf of PRI one person designated in writing by those Holders
holding, in the aggregate, a majority of the shares of PRI Common issued at the
Effective Time that are owned of record by the Holders (the "Equipe Nominee").
PRI will use its best efforts, consistent with applicable law, to solicit
proxies for the election of the Equipe Nominee, consistent with the efforts
customarily employed by PRI in soliciting proxies for the election of
management's nominees for director, and otherwise to cause the election of the
Equipe Nominee as a director. Provided that an Equipe Nominee is nominated for
election to a term of at least one year at PRI's annual meeting of stockholders
or special meeting in lieu thereof following the end of each of its 1997, 1998
and 1999 fiscal years, PRI shall not be required to nominate any Equipe Nominee
(a) for election to a term that will end after PRI's annual meeting of
stockholders or special meeting in lieu thereof following the end of its 1999
fiscal year or (b) for election at any meeting if an Equipe Nominee is already
serving as a director and will remain in office following such meeting.

      Section 8.16.  Indemnification of Equipe Officers and Directors.

            8.16.1   PRI and the Surviving Corporation hereby agree that the
      indemnification obligations set forth in the Equipe Charter and the Equipe
      Bylaws, in each case on the date of this Agreement, shall survive the
      Merger (and, prior to the Effective Time, PRI shall cause the articles of
      incorporation and bylaws of Acquisition Corp. to reflect such provisions)
      and shall not be amended, repealed or otherwise modified for a period of
      six years after the Effective Time in any manner that would adversely
      affect the rights thereunder of the individuals who on or prior to the
      Effective Time were directors or officers, employees or agents (each such
      term being used in this Section 8.16 in the manner defined in the Equipe
      Charter and the Equipe Bylaws in effect on the date hereof) of Equipe.

            8.16.2   PRI shall take all action necessary to cause the Surviving
      Corporation to perform its obligations under Section 8.16.1 and to fulfill
      its indemnification obligations under the Surviving Corporation's articles
      of incorporation and bylaws.

            8.16.3   The obligations of Equipe, the Surviving Corporation, and
      PRI under this Section 8.16 shall not be terminated or modified in such a
      manner as to adversely affect any director, officer, employee or agent to
      whom this Section 8.16 applies without the consent of such affected
      director, officer, employee or agent (it being expressly agreed that each
      such director,

                                      32
<PAGE>
 
      officer, employee and agent to whom this Section 8.16 applies shall be a
      third-party beneficiary of this Section 8.16).


      Section 8.17.  Employee Matters. To the maximum extent permitted under the
terms of the applicable PRI benefit plans, all Equipe employees shall be
eligible to participate in the various benefit plans and programs maintained for
PRI employees or in substantially similar programs, including (without
limitation) any of the following benefit plans maintained by PRI as of the
Effective Time: medical/dental/vision care, life insurance, disability income,
sick pay, holiday and vacation pay, 401(k) plan coverage, Section 125 benefit
arrangements, bonus, profit-sharing or other incentive plans, pension or
retirement programs, dependent care assistance, and employee stock option and
stock purchase plans, to the extent the Equipe employees meet the eligibility
requirements for each such plan or program. Equipe employees shall be given
credit, for purposes of any service requirements for participation, for their
period of service with Equipe prior to the Effective Time, and the Equipe
employees shall also, with respect to any PRI plans or programs which have
co-payment, deductible or other co-insurance features, receive credit for any
amounts such employees have paid to date in the plan year of the Merger in co-
payments, deductibles or co-insurance under comparable programs maintained by
Equipe prior to the Effective Time. No Equipe employee who participates in any
medical/health plan of Equipe at the Effective Time shall be denied coverage
under the PRI medical/health plan by reason of any pre-existing condition
exclusions. All officers of Equipe immediately prior to the Effective Time shall
be entitled to all perquisites and other special benefits generally made
available to PRI officers of equivalent responsibility.

      Section 8.18.  Obligations of Acquisition Corp. PRI shall take all action
necessary to cause Acquisition Corp. to perform its obligations under this
Agreement and to consummate the Merger on the terms and conditions set forth in
this Agreement.

      Section 8.19.  Affiliate's Agreements. Each of PRI and Equipe shall use
its best efforts to cause each person who is, or may be deemed to be, at the
time of the PRI Stockholders' Meeting, an "affiliate" of PRI (a "PRI Affiliate")
or of Equipe (an "Equipe Affiliate"), respectively, to deliver to the other,
prior to the date the Proxy Statement is mailed to PRI's stockholders, a written
agreement in substantially the form of Exhibit B-1 (a "PRI Affiliate's
                                       -----------
Agreement") or Exhibit B-2 (an "Equipe Affiliate's Agreement") hereto,
               -----------
respectively.


                        ARTICLE 9. CONDITIONS PRECEDENT

      Section 9.1.   Conditions to Each Party's Obligations. The respective
obligations of each party to effect the transactions contemplated by this
Agreement shall be subject to the satisfaction on or prior to the Closing Date
of the following conditions unless waived by such party:

            9.1.1.   Government Approvals. All authorizations, consents, orders
      or approvals of, or declarations or filings with, or expiration or early
      termination of waiting periods imposed by, any Governmental Entity
      necessary for the consummation of the transactions contemplated by this
      Agreement, including under applicable federal and state securities laws,
      and including the waiting period required by the Hart-Scott-Rodino
      Antitrust Improvements Act of 1976 and regulations promulgated thereunder
      (the "HSR Act"), shall have been filed, occurred or been obtained.

            9.1.2.   Stockholder Approval. This Agreement shall have been
      approved and adopted by the stockholders of both Equipe and PRI.

                                      33
<PAGE>
 
            9.1.3. Legal Action. No temporary restraining order, preliminary
      injunction or permanent injunction or other order preventing the
      consummation of the transactions contemplated by this Agreement shall have
      been issued by any federal or state court and remain in effect, and no
      litigation brought by any Governmental Entity seeking the issuance of such
      an order or injunction shall be pending which, in the good faith judgment
      of Equipe's or PRI's board of directors, has a reasonable probability of
      resulting in such order, injunction or damages. In the event any such
      order or injunction shall have been issued, each party agrees to use its
      reasonable efforts to have any such injunction lifted.

            9.1.4. Statutes. No statute, rule or regulation shall have been
      enacted by any Governmental Entity that (a) makes the consummation of the
      transactions contemplated by this Agreement illegal, (b) prohibits PRI's
      ownership or operation of all or a material portion of the business or
      assets of Equipe, or compels PRI to dispose of or hold separate all or a
      material portion of the business or assets of Equipe, as a result of the
      transactions contemplated by this Agreement, or (c) renders PRI or Equipe
      unable to consummate the transactions contemplated by this Agreement,
      except for any waiting period provisions.

            9.1.5. Tax Opinions. PRI and Equipe shall have received written
      opinions of Foley, Hoag & Eliot LLP and Brobeck, Phleger & Harrison LLP,
      respectively, in form and substance reasonably satisfactory to them to the
      effect that the Merger and the Related Company Acquisitions constitute
      reorganizations within the meaning of Section 368 of the Code. In
      rendering such opinions, counsel may rely upon representations and
      certificates of PRI, Acquisition Corp., Equipe and the Founders.

            9.1.6. Pooling Letters. Each of PRI and Equipe shall have received
      updates of letters from Coopers & Lybrand LLP and Ernst & Young LLP
      regarding those firms' concurrence with the conclusions of the managements
      of PRI and Equipe respectively as to the appropriateness of pooling of
      interests accounting for the Merger and the Related Company Acquisitions
      under Accounting Principles Board Opinion No. 16, if closed and
      consummated in accordance with this Agreement.

      Section 9.2. Conditions to Obligations of PRI and Acquisition Corp. The
obligations of PRI and Acquisition Corp. to effect the transactions contemplated
by this Agreement are subject to the satisfaction on or prior to the Closing
Date of the following conditions, unless waived by PRI:

            9.2.1. Representations, Warranties and Performance of Equipe and the
      Founders. The representations and warranties of Equipe and each of the
      Founders set forth in this Agreement shall be true and correct as of the
      date of this Agreement and as if made at and as of the Closing Date,
      except for (i) changes specifically contemplated by this Agreement, (ii)
      those representations and warranties that address matters only as of a
      particular date (which shall remain true and correct as of such date) and
      (iii) in each case except where the failure to be so true and correct
      would not have an Equipe Material Adverse Effect (other than
      representations and warranties that are already so qualified, which shall
      be true and correct as written). Equipe and each Founder shall have
      performed in all material respects all obligations required to be
      performed under this Agreement prior to the Closing Date by such parties.
      Since June 30, 1997 there shall have been no changes that, in the
      aggregate, have had or could reasonably be expected to have an Equipe
      Material Adverse Effect, and the Closing, itself, will not cause any
      default under any material contract to which Equipe is a party that would
      have an Equipe Material Adverse Effect. PRI shall have received a
      certificate signed by the chief executive officer and chief financial
      officer of Equipe and by each Founder confirming the preceding three
      sentences.

                                       34
<PAGE>
 
            9.2.2. Officers' Certificate. Authorized officers of Equipe shall
      have executed the Officers' Certificate of Equipe.

            9.2.3. Other Agreements. Each of the parties thereto, other than PRI
      and Acquisition Corp., shall have entered into the following agreements:

              (a)  Equipe Affiliate's Agreements, dated as of the Closing Date,
                   of each of the Equipe Affiliates;

              (b)  Employment Agreements, dated as of the Closing Date, between
                   Equipe and each of James Cameron, Frantisek Pavlik, Paul
                   Rogan, Lubomir Skrobak and Steven The in the form of 
                   Exhibit C (the "Employment Agreements");
                   ---------

              (c)  a Registration Rights Agreement, dated as of the Closing
                   Date, among PRI, each of the Holders, the stockholders of
                   each of the Related Companies, and the Stockholders'
                   Representatives (as defined in Section 10.2) in the form of
                   Exhibit D (the "Registration Rights Agreement); and
                   ---------

              (d)  each of Ralph Cameron, Ruth Cameron, Patrick Allen and John
                   Hoctor (collectively, the "Other Holders") shall have
                   executed an instrument of adherence (each an "Instrument of
                   Adherence"), agreeing to be bound by Articles 10 and 12
                   hereof.

            9.2.4. Irrevocable Proxies. Each Founder shall have delivered to
      PRI, simultaneously with the execution of this Agreement, and Equipe shall
      have used its best efforts to cause each of Ralph Cameron, Ruth Cameron,
      Patrick Allen and John Hoctor to deliver to PRI as soon as practicable
      following the execution of this Agreement, his or her irrevocable proxy
      (each, an "Irrevocable Proxy") in the form of Exhibit E with respect to
                                                    ---------
      approval of the Merger by the stockholders of Equipe.

            9.2.5. Opinion of Counsel for Equipe and Founders. PRI shall have
      received an opinion dated as of the Closing Date of Brobeck, Phleger &
      Harrison LLP, counsel for Equipe and the Founders, in the form of 
      Exhibit F. 
      ---------

            9.2.6. Resignations. Equipe shall have received a letter from each
      person who is an officer or director of Equipe or of either Related
      Company immediately prior to the Closing Date, to the effect that such
      person thereby resigns from all such offices effective as of the Closing
      Date.

            9.2.7. FIRPTA Compliance. Each Holder shall have delivered to PRI an
      affidavit complying with the requirements of Code section 1445 and the
      regulations thereunder certifying as to the non-foreign status of such
      Holder, or Equipe and each of the Related Companies shall have delivered
      to PRI certificates complying with the requirements of Section 1445 of the
      Code and the regulations thereunder to the effect that Equipe and the
      Related Companies are not and have not been U.S. real property holding
      corporations.

            9.2.8. Effectiveness of Related Company Acquisitions. All conditions
      to the consummation of the Related Company Acquisitions, other than the
      consummation of the Merger, shall have been satisfied, such that the
      Related Party Acquisitions will be able to be consummated immediately
      following the consummation of the Merger.

                                       35
<PAGE>
 
      Section 9.3. Conditions to Obligations of Equipe and Founders. The
obligations of Equipe and the Founders to effect the transactions contemplated
by this Agreement are subject to the satisfaction on or prior to the Closing
Date of the following conditions unless waived by the Founders:

            9.3.1. Representations, Warranties and Performance of PRI. The
      representations and warranties of PRI and Acquisition Corp. set forth in
      this Agreement shall be true and correct as of the date of this Agreement
      and as if made at and as of the Closing Date, except for (i) changes
      specifically contemplated by this Agreement, (ii) those representations
      and warranties that address matters only as of a particular date (which
      shall remain true and correct as of such date) and (iii) in each case
      except where the failure to be so true and correct would not have a PRI
      Material Adverse Effect. PRI and Acquisition Corp. shall have performed in
      all material respects all obligations required to be performed under this
      Agreement prior to the Closing Date by such parties. Since June 29, 1997,
      there shall have been no changes that, in the aggregate, have had or could
      reasonably be expected to have a PRI Material Adverse Effect, and the
      Closing, itself, will not cause any default under any material contract to
      which PRI or Acquisition Corp. is a party that would have a PRI Material
      Adverse Effect. Equipe shall have received a certificate signed by the
      chief executive officer and chief financial officer of PRI and Acquisition
      Corp. confirming the preceding three sentences.

            9.3.2. Officers' Certificate. Authorized officers of Acquisition
      Corp. shall have executed the Officers' Certificate of Acquisition Corp.

            9.3.3. Other Agreements. Each of PRI and Acquisition Corp., to the
      extent a party thereto, shall have entered into the Registration Rights
      Agreement and the Employment Agreements.

            9.3.4. Opinion of PRI's Counsel. The Founders shall have received an
      opinion dated as of the Closing Date of Foley, Hoag & Eliot LLP, counsel
      to PRI and Acquisition Corp., substantially in the form of Exhibit G.
                                                                 ---------

            9.3.5. PRI Options. The board of directors of PRI shall have
      authorized, and any other necessary corporate action shall have been taken
      by PRI to cause, the issuance, as of the Effective Time, of nonqualified
      stock options to purchase PRI Common to those Equipe employees listed on
      Schedule 9.3.5, in the respective amounts listed on Schedule 9.3.5 (the
      --------------                                      --------------
      "PRI Options"). Such PRI Options shall be at an exercise price equal to
      the last reported sale price of the PRI Common as reported by the Nasdaq
      National Market on the Effective Date, and shall otherwise be consistent
      in form and substance with the nonqualified stock options granted by PRI
      to employees having comparable responsibilities.


                           ARTICLE 10. INDEMNIFICATION

      Section 10.1. Agreement to Indemnify. Subject to the limitations set forth
herein, the Holders shall jointly and severally (and without any right of
contribution from or indemnification by Equipe or either Related Company)
indemnify, defend and hold harmless PRI and the Surviving Corporation (and their
respective affiliates, officers, directors, employees, representatives and
agents) (collectively, the "Indemnified Persons") against and in respect of any
and all claims, costs, losses, expenses, liabilities or other damages, including
interest, penalties and reasonable attorneys' fees and disbursements
(collectively "Damages") by reason of or otherwise arising out of a breach by
Equipe or any Founder of a representation, warranty or covenant contained in
this Agreement. The amounts for which the

                                       36
<PAGE>
 
Indemnified Persons may seek indemnification under this Article 10 shall extend
to, and as used herein the term "Damages" shall include, reasonable attorneys'
fees and disbursements, reasonable accountants' fees, costs of litigation and
other expenses incurred by them in the defense of any claim asserted against
them and any amounts paid in settlement or compromise of any claim asserted
against them to the extent that the claim asserted is or would have been subject
to the indemnification provisions hereof, subject to the limitations set forth
in Section 10.4. The indemnity under this Article 10 extends only to the net
amount of Damages sustained by the Indemnified Person after deducting therefrom
any amount that such Indemnified Person recovers as proceeds of insurance in
respect of such claim, net of any cost of collection, deductible, retroactive
premium adjustment, reimbursement obligation or other cost directly related to
the insurance claim for such claim.

      Section 10.2. Appointment of Stockholders' Representative. Each Holder, by
operation of the Merger and by virtue of his receipt of the merger consideration
specified in Section 1.5 above, shall be deemed at the Effective Time to have
appointed James Cameron and Paul Rogan, and each of them, acting singly, with
full power of substitution, the representatives and attorneys-in-fact of such
Holder (the "Stockholders' Representatives"), with full power and authority in
the name of and for and on behalf of such Holder to:

            (a)   execute and deliver on behalf of such Holder the Registration
                  Rights Agreement and on behalf of each Other Holder an
                  Instrument of Adherence; and

            (b)   to receive at the Closing and forward promptly to such Holder
                  the stock certificates referred to in Section 1.5 above.

      This power of attorney, and the authority conferred hereby, being coupled
with an interest, are irrevocable and shall not be terminable by any act or deed
of such Holder, by the death or incapacity of such Holder, by operation of law
or otherwise. Notwithstanding the foregoing, this power of attorney shall
terminate in the event that the Closing has not taken place within one hundred
twenty (120) days after the date hereof.

      Section 10.3. Survival of Representations and Warranties. Except as
otherwise set forth below, the representations and warranties of Equipe and the
Founders in this Agreement shall survive the Closing, and any investigation made
by PRI, for a period of one year after the Closing Date or, if sooner, until the
publication of audited financial statements of PRI for its first fiscal year
ending after the Effective Time (the "Survival Period"). The representations and
warranties of PRI and Acquisition Corp. shall terminate at the Effective Time.
The covenants of any party shall survive the Closing in accordance with their
terms.

      Section 10.4. Certain Limitations. The obligations of the Holders with
respect to indemnification pursuant to Section 10.1 above shall be subject to
the following limitations:

      (a)   no indemnification shall be required to be made hereunder (i) with
            regard to individual claims for $10,000 or less and (ii) unless the
            aggregate amount of individual claims of greater than $10,000 for
            which indemnity is sought exceeds $2,500,000, in which case
            indemnification shall be provided to the full extent of such claims;

      (b)   no claims for indemnity shall be made after the expiration of the
            Survival Period; and

      (c)   the amount of the claims for which indemnification shall be made
            hereunder by any Holder shall not exceed the product of (i) the
            Average Price multiplied by (ii) ten percent (10%) of the number of
            shares of PRI Common received by such Holder pursuant to this
            Agreement and any Related Company Acquisition Agreement to which
            such Holder is a party.

                                       37
<PAGE>
 
                  ARTICLE 11. TERMINATION, AMENDMENT AND WAIVER

      Section 11.1.  Termination.  This Agreement may be terminated at any time
prior to the Closing:

      (a)   by mutual written consent of Equipe, the Founders and PRI;

      (b)   by Equipe or any Founder if there has been a breach of any
            representation, warranty, covenant or agreement contained in this
            Agreement on the part of PRI or Acquisition Corp. such that the
            condition set forth in Section 9.3.1 would not be satisfied and, if
            such breach is curable, such breach has not been cured within twenty
            days after written notice of such breach, or by PRI if there has
            been a breach of any representation, warranty, covenant or agreement
            contained in this Agreement on the part of Equipe or any Founder
            such that the condition set forth in Section 9.2.1 would not be
            satisfied and, if such breach is curable, such breach has not been
            cured within twenty days after written notice of such breach;

      (c)   by Equipe, any Founder or PRI if the stockholders of Equipe or PRI
            shall have voted not to approve this Agreement;

      (d)   by Equipe, any Founder or PRI if the Closing shall not have been
            occurred on or before May 31, 1998; provided, however, that the
            rights to terminate this Agreement under this Section 11.1(d) shall
            not be available to any party whose failure to fulfill an obligation
            under this Agreement has been the cause of the failure of the Merger
            to occur on or before such date;

      (e)   by Equipe, any Founder or PRI if (i) there shall be a final
            nonappealable order of a federal or state court in effect preventing
            consummation of the transactions contemplated by this Agreement or
            (ii) there shall be any action taken, or any statute, rule,
            regulation or order erected, promulgated or issued or deemed
            applicable to the transactions contemplated by this Agreement by any
            Governmental Entity which would make consummation of the
            transactions contemplated by this Agreement illegal; and

      (f)   by Equipe or PRI if there shall be any action taken, or any statute,
            rule, regulation or order enacted, promulgated or issued or deemed
            applicable to the transactions contemplated by this Agreement by any
            Governmental Entity that would (i) prohibit PRI's or Equipe's
            ownership or operation of all or a material portion of the business
            or assets of Equipe or PRI and its subsidiaries taken as a whole, or
            compel PRI or Equipe to dispose of or hold separate all or a
            material portion of the business or assets of Equipe or PRI, as a
            result of the transactions contemplated by this Agreement or (ii)
            render PRI, Equipe or any Founder unable to consummate the
            transactions contemplated by this Agreement.

      Section 11.2.  Effect of Termination. In the event of termination of this
Agreement by Equipe, PRI or the Founders as provided in Section 11.1, this
Agreement shall forthwith become void and there shall be no liability or
obligation on the part of PRI or Equipe or their respective officers or
directors or any Founder, except that if such termination results from any
material and intentionally fraudulent misrepresentation by a party made herein
or an intentional breach by any party of any of its material agreements herein,
the other parties shall be entitled to recover from such party all fees and
expenses incurred by them incident to their investigation, preparation and
carrying out of the transactions contemplated hereby.

                                       38
<PAGE>
 
      Section 11.3. Amendment.  This Agreement may not be amended, modified or
supplemented by the parties hereto in any manner, except by an instrument in
writing signed on behalf of each of the parties hereto.

      Section 11.4. Extension; Waiver. At any time prior to the Effective Time,
any party hereto, by such corporate or other action as shall be appropriate,
may, to the extent legally allowed, (a) extend the time for the performance of
any of the obligations or other acts of the other parties hereto, (b) waive any
inaccuracies in the representations and warranties made to such party contained
herein or in any document delivered pursuant hereto and (c) waive compliance
with any of the covenants, agreements or conditions for the benefit of such
party contained herein. Any agreement on the part of a party hereto to any such
extension or waiver shall be valid if set forth in an instrument in writing
signed on behalf of such party.


                            ARTICLE 12. MISCELLANEOUS

      Section 12.1. Arbitration.

            12.1.1. Any dispute, controversy or claim arising in connection with
      this Agreement, including any claim for indemnification pursuant to
      Section 10.1 of this Agreement, shall be settled by arbitration by a panel
      of three arbitrators; except that, notwithstanding the foregoing, any
      dispute, controversy or claim arising in connection with a breach of the
      confidentiality provisions of this Agreement shall not be subject to
      arbitration pursuant to this Section 12.1. The arbitration shall be held
      in New York, New York and shall be conducted in accordance with the
      Commercial Arbitration Rules of the American Arbitration Association,
      except that the rules set forth in this Section 12.1 shall govern such
      arbitration to the extent they conflict with the rules of the American
      Arbitration Association.

            12.1.2. Upon written notice by a party to any other party of a
      request for arbitration hereunder, PRI and the Founders shall each select
      an arbitrator within thirty days after the date of such notice, and the
      two arbitrators so selected shall use their best efforts to select a
      mutually acceptable arbitrator within thirty days after their selection.
      If the two arbitrators are unable to agree upon a third arbitrator within
      said thirty-day period, the third arbitrator shall be selected by the
      American Arbitration Association pursuant to its rules. The arbitration
      shall be conducted in an expeditious manner, the parties using their best
      efforts to cause the arbitration to be completed within sixty days after
      selection of the arbitrator. In the arbitration, there shall be no
      discovery except as the arbitrators shall permit following a determination
      by the arbitrators that the party seeking such discovery has substantial
      demonstrable need. All other procedural matters shall be within the
      discretion of the arbitrators. In the event a party fails to comply with
      the procedures in any arbitration in a manner deemed material by the
      arbitrators, the arbitrators shall fix a reasonable period of time for
      compliance and, if the party does not comply within said period, a remedy
      deemed just by the arbitrators, including an award of default, may be
      imposed.

            12.1.3. The determination of the arbitrators by majority vote shall
      be final and binding on the parties. The expense of the arbitration and
      all expenses incurred by the parties with respect thereto (including
      reasonable attorneys' fees and fees of experts shall be borne by the party
      not prevailing in the arbitration, as determined by the arbitrators.
      Judgment upon the award rendered by the arbitrators may be entered in the
      U.S. District Court for the District of New York sitting in New York, New
      York.

                                       39
<PAGE>
 
      Section 12.2. Notices. Any notice, request, instruction or other document
to be given hereunder by any party to the other shall be in writing and
delivered personally or sent by certified mail, postage prepaid, by facsimile
(with receipt confirmed), or by courier service, as follows:

      To PRI:                       PRI Automation, Inc.
                                    805 Middlesex Turnpike
                                    Billerica, Massachusetts 01821-3986
                                    Fax: 978-671-9430
                                    Attention: President

                                    With a copy to:

                                    Foley, Hoag & Eliot LLP
                                    One Post Office Square
                                    Boston, Massachusetts 02109
                                    Fax:  617-832-7000
                                    Attention: Robert L. Birnbaum, Esq.

      To Equipe:                    Equipe Technologies, Inc.
                                    733 North Pastoria Avenue
                                    Sunnyvale, California 94086
                                    Fax: 408-522-0358
                                    Attention: President

                                    With a copy to:

                                    Brobeck, Phleger & Harrison LLP
                                    Spear Street Tower
                                    One Market
                                    San Francisco, California 94105
                                    Fax:  415-442-1010
                                    Attention: Michael J. Kennedy, Esq.

      To any Founder:               James Cameron and Paul Rogan,
                                      as Stockholders' Representatives
                                    c/o Equipe Technologies, Inc.
                                    733 North Pastoria Avenue
                                    Sunnyvale, California 94086
                                    Fax: 408-522-0358

                                    With a copy to:

                                    Brobeck, Phleger & Harrison LLP
                                    Spear Street Tower
                                    One Market
                                    San Francisco, California 94105
                                    Fax:  415-442-1010
                                    Attention: Michael J. Kennedy, Esq.

or to such other Persons as may be designated in writing by the parties, by a
notice given as aforesaid.

                                       40
<PAGE>
 
      Section 12.3.  Construction. The headings in this Agreement are included
only for convenience and shall not affect the meaning or interpretation of this
Agreement. The words "herein" and "hereof" and other words of similar import
refer to this Agreement as a whole and not to any particular part of this
Agreement. The word "including" as used herein shall not be construed so as to
exclude any other thing not referred to or described.

      Section 12.4.  Exhibits and Schedules. The Exhibits and Schedules to this
Agreement are a part of this Agreement as if set forth in full herein. All
references herein to Sections, Exhibits and Schedules shall be deemed references
to such parts of this Agreement, except as otherwise provided.

      Section 12.5.  Entire Agreement, Assignability, etc. This Agreement (a)
constitutes the entire agreement, and supersedes all other prior agreements and
understandings, both written and oral, between the parties with respect to the
subject matter hereof, (b) is not intended to confer upon any Person other than
the parties hereto any rights or remedies hereunder, except as otherwise
expressly provided herein, and (c) shall not be assignable by operation of law
or otherwise, except to each Founder's heirs upon such Founder's death. No
provisions of this Agreement are intended, nor will be interpreted, to provide
or create any third party beneficiary rights or any other rights of any kind in
any client, customer, affiliate, stockholder, partner or employee of any party
hereto or any other Person unless specifically provided otherwise herein, and,
except as so provided, all provisions hereof will be personal solely between the
parties to this Agreement.

      Section 12.6.  Validity. The invalidity or unenforceability of any
provisions of this Agreement shall not affect the validity or enforceability of
any other provisions of this Agreement, each of which shall remain in full force
and effect.

      Section 12.7.  Further Assurances. Each party agrees to cooperate fully
with the other parties and to execute such further instruments, documents and
agreements and to give such further written assurances as may be reasonably
requested by any other party to evidence and reflect the transactions described
herein and contemplated hereby and to carry into effect the intents and purposes
of this Agreement.

      Section 12.8.  Jurisdiction and Venue. Each party agrees that the federal
courts of the United States shall have the exclusive jurisdiction for any
dispute under this Agreement.

      Section 12.9.  Governing Law. This Agreement shall be governed by the laws
of the Commonwealth of Massachusetts.

      Section 12.10. Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed to be an original but all of which
together shall constitute one and the same instrument.

                                 *     *     *

                                       41
<PAGE>
 
      IN WITNESS WHEREOF, the parties have duly executed this Agreement as of
the date first above written.

                                     PRI AUTOMATION, INC.


                                     By: /s/ Mordechai Wiesler
                                        ----------------------------------------
                                        Name:  Mordechai Wiesler
                                        Title: Chief Executive Officer


                                     E-ACQUISITION, CORP.


                                     By: /s/ Mordechai Wiesler
                                        ----------------------------------------
                                        Name:  Mordechai Wiesler
                                        Title: Chief Executive Officer


                                     EQUIPE TECHNOLOGIES, INC.


                                     By: /s/ James Cameron
                                        ----------------------------------------
                                        Name:  James Cameron
                                        Title: CEO

                                     FOUNDERS:


                                     /s/ James Cameron
                                     -------------------------------------------
                                     James Cameron


                                     /s/ Frantisek Pavlik
                                     -------------------------------------------
                                     Frantisek Pavlik


                                     /s/ Paul Rogan
                                     -------------------------------------------
                                     Paul Rogan


                                     /s/ Lubomir Skrobak
                                     -------------------------------------------
                                     Lubomir Skrobak


                                     /s/ Steven The
                                     -------------------------------------------
                                     Steven The

                                       42
<PAGE>
 
                            Instrument of Adherence
                            -----------------------

      Each of the undersigned hereby agrees to be bound by Articles 10 and 12 of
the foregoing Agreement and Plan of Reorganization dated October 25, 1997, as
fully as if each had been an original signatory thereto.



                                                           *
                                        ----------------------------------------
                                        Ralph Cameron


                                                           *
                                        ----------------------------------------
                                        Ruth Cameron


                                                           *
                                        ----------------------------------------
                                        Patrick Allen


                                                           *
                                        ----------------------------------------
                                        John Hoctor


                                        By: /s/ James Cameron
                                           -------------------------------------
                                           James Cameron, Attorney-in-fact


                                           /s/ Paul Rogan
                                           -------------------------------------
                                           Paul Rogan, Attorney-in-fact

                                       43
<PAGE>
 
      Agreement and Plan of Reorganization, dated as of October 25, 1997,
  among PRI Automation, Inc., E-Acquisition Corp., Equipe Technologies, Inc.
             and Certain Stockholders of Equipe Technologies, Inc.

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

Exhibits and Schedules Omitted In Accordance with Item 601(b)(2) of Regulation
S-K:

          (a) Exhibit A-1.  Form of stock purchase agreement for the acquisition
of the capital stock of E-Machine by PRI;

          (b) Exhibit A-2.  Form of stock purchase agreement for the acquisition
of the capital stock of Equipe Japan by PRI;

          (c) Exhibit B-1.  Form of affiliate's agreement to be entered into by
affiliates of PRI prior to the mailing of a proxy statement (the "Proxy
Statement") concerning the Merger and related transactions to the stockholders
of PRI;

          (d) Exhibit B-2.  Form of affiliate's agreement to be entered into by
affiliates of Equipe prior to the mailing of the Proxy Statement;

          (e) Exhibit C.  Form of employment agreement to be entered into
between Equipe and each of the Founders on or before the date of the closing
(the "Closing") of the transactions contemplated by the Merger Agreement;

          (f) Exhibit D.  Form of registration rights agreement to be entered
into between PRI and the currently outstanding stockholders of Equipe, E-Machine
and Equipe Japan on or before the date of the Closing;

          (g) Exhibit E.  Form of irrevocable proxy to be executed by each of
the stockholders of Equipe with respect to their approval of the Merger;

          (h) Exhibit F.  Form of opinion of counsel for Equipe and the Founders
to be delivered to PRI at the Closing;

          (i) Exhibit G.  Form of opinion of counsel for PRI and E-Acquisition
to be delivered to the Founders at the Closing;

          (j) Schedules of exceptions to Article 2 of the Merger Agreement;

          (k) Schedule of officers and directors of the Related Companies;

          (l) Schedule of stockholders of the Related Companies;

          (m) Schedule of exceptions to Article 3 of the Merger Agreement;

          (n) Financial information relating to E-Machine and Equipe Japan for
the last three months of 1990, 1991 to 1996 and the first three quarters of
1997; and

          (o) Schedule of options to be issued to employees of Equipe.

                                 *     *     *

          PRI Automation, Inc. ("PRI") will furnish supplementally a copy of any
omitted schedule to the Securities and Exchange Commission upon request.  PRI
may request confidential treatment pursuant to Rule 24b-2 of the Securities
Exchange Act of 1934, as amended, for any schedule so furnished.

<PAGE>
                                                                   EXHIBIT 10.20


================================================================================

                      ___________________________________

                           STOCK PURCHASE AGREEMENT

                      ___________________________________ 

                                     Among

                             PRI AUTOMATION, INC.,

                                      and

                      THE SHAREHOLDERS OF E-MACHINE, INC.


                         Dated as of October 25, 1997

================================================================================
<PAGE>
 
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
ARTICLE I      DEFINITIONS.................................................    1

     Section 1.1.   Certain Defined Terms..................................    1

ARTICLE II     PURCHASE AND SALE...........................................    2

     Section 2.1.   Purchase and Sale of the Shares........................    2
     Section 2.2.   Purchase Price.........................................    2
     Section 2.3.   Closing................................................    2

ARTICLE III    REPRESENTATIONS AND WARRANTIES OF EACH SELLER...............    4

     Section 3.1.   Authority..............................................    4
     Section 3.2.   Ownership..............................................    4
     Section 3.3.   Further Assurances.....................................    4
     Section 3.4.   Investment in PRI Common...............................    4

ARTICLE IV     REPRESENTATIONS AND WARRANTIES OF THE PURCHASER.............    6

     Section 4.1.   Corporate Status.......................................    6
     Section 4.2.   Authority..............................................    6
     Section 4.3.   Investment Purpose.....................................    6
     Section 4.4.   Capitalization.........................................    6

ARTICLE V      ADDITIONAL AGREEMENT........................................    7

     Section 5.1.   Further Action.........................................    7

ARTICLE VI     CONDITIONS TO CLOSING.......................................    7

     Section 6.1.   Condition to Each Party's Obligations..................    7
     Section 6.2.   Condition to Obligations of the Seller.................    7
     Section 6.3.   Conditions to Obligations of the Purchase..............    8

ARTICLE VII    TERMINATION AND WAIVER......................................    8

     Section 7.1.   Termination............................................    8
     Section 7.2.   Effect of Termination..................................    8
     Section 7.3.   Waiver.................................................    8
</TABLE> 

                                       i
<PAGE>
 
<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
ARTICLE VIII GENERAL PROVISIONS............................................    9

     Section 8.1.   Expenses...............................................    9
     Section 8.2.   Notices................................................    9
     Section 8.3.   Public Announcements...................................   10
     Section 8.4.   Headings...............................................   10
     Section 8.5.   Severability...........................................   10
     Section 8.6.   Entire Agreement.......................................   10
     Section 8.7.   Assignment.............................................   10
     Section 8.8.   No Third Party Beneficiaries...........................   10
     Section 8.9.   Amendment..............................................   11
     Section 8.10.  Governing Law..........................................   11
     Section 8.11.  Counterparts...........................................   11
     Section 8.12.  Specific Performance...................................   11
     Section 8.13.  Indemnity Acknowledgment...............................   11
</TABLE>

                                      ii
<PAGE>
 
          STOCK PURCHASE AGREEMENT, dated as of October 25, 1997, among PRI
Automation, Inc., a Massachusetts corporation (the "Purchaser"), and each of
                                                    ---------                
the persons and entities listed on Schedule A hereto, each of which is referred
to as a "Seller."
         ------   

                             W I T N E S S E T H:
                             ------------------- 

          WHEREAS, each Seller owns the number of shares of common stock (the
"Stock") of E-Machine, Inc., a California corporation (the "Company"), set
 -----
forth opposite each Seller's name on Schedule A hereto; and

          WHEREAS, each Seller wishes to sell to the Purchaser, and the
Purchaser wishes to purchase from each Seller, shares of the Stock (such shares
to be sold pursuant to this Agreement being individually, a "Share" and,
                                                             -----       
collectively, the "Shares"), upon the terms and subject to the conditions set
                   ------                                                     
forth herein.

          NOW, THEREFORE, in consideration of the promises and the mutual
agreements and covenants hereinafter set forth, the Purchaser and the Seller
hereby agree as follows:

                                   ARTICLE I

                                  DEFINITIONS

          Section 1.1.  Certain Defined Terms.  As used in this Agreement, the
                        ---------------------                                 
following terms shall have the following meanings:

          "Action" means any claim, action, suit, arbitration, inquiry,
           ------                                                       
proceeding or investigation by or before any Governmental Authority.

          "Affiliate" means, with respect to any specified Person, any other
           ---------                                                         
Person that directly, or indirectly through one or more intermediaries,
controls, is controlled by or is under common control with such specified
Person.

          "Closing" has the meaning specified in Section 2.3(a).
           -------                                               

          "Closing Date" has the meaning specified in Section 2.3(a).
           ------------                                               

          "Stock" has the meaning specified in the recitals to this Agreement.
           -----                                                               

          "Control" (including the terms "controlled by" and "under common
           -------                        -------------       ------------
control with"), with respect to the relationship between or among two or more
- ------------                                                                  
Persons, means the possession, directly or indirectly or as trustee or executor,
of the power to direct or cause the direction of the affairs or management of a
Person, whether through the ownership of voting

                                       1
<PAGE>
 
securities, as trustee or executor, by contract or otherwise, including, without
limitation, the ownership, directly or indirectly, of securities having the
power to elect a majority of the board of directors or similar body governing
the affairs of such Person.

          "Governmental Authority" means any United States federal, state or
           ----------------------                                            
local or any foreign government, governmental, regulatory or administrative
authority, agency or commission or any court, tribunal, or judicial or arbitral
body.

          "Governmental Order" means any order, writ, judgment, injunction,
           ------------------                                               
decree, stipulation, determination or award entered by or with any Governmental
Authority.

          "Law" means any federal, state, local or foreign statute, law,
           ---                                                           
ordinance, regulation, rule, code, order requirement or rule of common law.

          "Merger" has the meaning specified in Section 6.1.
           ------                                            

          "Merger Agreement" has the meaning specified in Section 6.1.
           ----------------                                            

          "Person" means any individual, partnership, firm, corporation,
           ------                                                        
association, trust, unincorporated organization or other entity, as well as any
syndicate or group that would be deemed to be a person under Section 13(d)(3) of
the Securities Exchange Act of 1934, as amended.

          "Purchase Price" has the meaning specified in Section 2.2.
           --------------                                            

                                  ARTICLE II

                               PURCHASE AND SALE

          Section 2.1.  Purchase and Sale of the Shares. Upon the terms and
                        -------------------------------
subject to the conditions contained in this Agreement, at the Closing, each
Seller shall sell to the Purchaser, and the Purchaser shall purchase from each
Seller, the number of Shares set forth opposite each Seller's name on Schedule
A.

          Section 2.2.  Purchase Price. The Purchase Price shall be 0.0432
                        --------------      
shares of common stock, $.01 par value, of Buyer ("PRI Common") per Share (the
                                                   ----------                  
"Purchase Price"), payable as provided in Section 2.3(b).
 --------------

          Section 2.3.  Closing.   Subject to the terms and conditions of this
                        -------                                               
Agreement, the sale and purchase of the Shares contemplated by this Agreement
shall take place at a closing (the "Closing") to be held at the offices of
                                    -------                                
Foley, Hoag & Eliot LLP, Boston, Massachusetts immediately after the
consummation of the Merger, or at such other place or at such other time or on
such other date as the Sellers selling in the aggregate more than half of the
Shares pursuant hereto and the Purchaser may mutually agree upon in writing (the
date on which the Closing takes place being the "Closing Date").
                                                 ------------    

                                       2
<PAGE>
 
          (b)  At the Closing:

               (i)   each Seller shall deliver or cause to be delivered to the
                     Purchaser stock certificates evidencing the Shares which
                     such Seller is selling pursuant hereto duly endorsed in
                     blank, or accompanied by stock powers duly executed in
                     blank, in form satisfactory to the Purchaser;

               (ii)  the Purchaser shall execute and deliver to each Seller a
                     counterpart of the Registration Rights Agreement
                     contemplated by the Merger Agreement (the "Registration
                                                                ------------
                     Rights Agreement"); 
                     ------ ---------

               (iii) each Seller shall execute and deliver to the Purchaser a
                     counterpart of the Registration Rights Agreement;

               (iv)  the Purchaser shall deliver to each employee of the Company
                     listed on Schedule 6.2 a stock option agreement, pursuant
                               ------------
                     to which such Seller shall have nonqualified stock options
                     to purchase the number of shares of PRI Common set forth
                     opposite such employee's name on Schedule 6.2, with the
                                                      ------------ 
                     terms set forth in Section 6.2(d); and


               (v)   the Purchaser shall deliver to each Seller a stock
                     certificate evidencing the number of shares of PRI Common
                     set forth opposite each Seller's name on Schedule A hereto.
                                                              ----------        

          (c)  Each Seller hereby appoints James Cameron and Paul Rogan, and
each of them, acting singly, with full power of substitution, the
representatives and attorneys-in-fact of such Seller (the "Seller's
                                                           -------- 
Representatives"), with full power and authority in the name of and for and on
- ---------------
behalf of the undersigned to:

               (i)   sell and deliver to the Purchaser the Shares at the
                     Closing;

               (ii)  to execute and deliver each of the Collateral Agreements,
                     containing such terms and conditions as the Seller's
                     Representatives shall determine to be advisable (provided
                     that the terms and conditions of each such agreement apply
                     in a similar manner to the Sellers and to the stockholders
                     of Equipe Technologies, Inc.);

               (iii) to receive at the Closing and forward promptly to such
                     Seller the stock certificate referred to in Section
                     2.3(b)(v) above; and

               (iv)  to take such other actions in furtherance of the
                     transactions contemplated hereby and by the Merger
                     Agreement as the

                                       3
<PAGE>
 
                     Seller's Representatives shall determine in their sole
                     discretion to be appropriate or advisable.

          This power of attorney, and the authority confirmed hereby, being
coupled with an interest, are irrevocable and shall not be terminable by any act
or deed of the undersigned, by the death or incapacity of the undersigned, by
operation of law or otherwise.  Notwithstanding the foregoing, this power of
attorney shall terminate in the event that the Closing has not taken place by
May 31, 1998.

          (d)  Immediately following the execution hereof, each Seller will
deliver to the Seller's Representatives, to be held for the account of such
Seller and delivered to the Purchaser at the Closing, the certificate or
certificates representing the Shares to be sold by such Seller hereunder.

                                  ARTICLE III

                        REPRESENTATIONS AND WARRANTIES
                                OF EACH SELLER

          As an inducement to the Purchaser to enter into this Agreement, each
Seller, severally but not jointly, represents and warrants to the Purchaser as
follows:

          Section 3.1.  Authority.  Such Seller has full power and authority to
                        ---------                                              
enter into this Agreement and the Registration Rights Agreement and this
Agreement is, and the Registration Rights Agreement, when executed and delivered
on behalf of such Seller by the Seller's Representatives, will be, binding and
enforceable against such Seller.

          Section 3.2.  Ownership. Except as set forth on Schedule 3.2, such
                        ---------                         ------------    
Seller is the sole and exclusive record and beneficial owner of all right, title
and interest in and to the number of Shares set forth opposite such Seller's
name on Schedule A hereto, free and clear of all claims, encumbrances of any
nature whatsoever.

          Section 3.3.  Further Assurances. Upon the delivery of the Shares to
                        ------------------  
the Purchaser against payment as provided for herein, good title to the Shares,
free and clear of all security interests, liens, claims, charges, options and
encumbrances of every kind and nature whatsoever will pass to the Purchaser and
such Seller will execute and deliver to the Purchaser such documents and take
such further action as may be reasonably requested by the Purchaser in order to
transfer ownership of and title to all Shares being purchased from such Seller
to the Purchaser.

          Section 3.4.  Investment in PRI Common.
                        ------------------------ 

                 3.4.1  Such Seller (together with such Seller's financial and
     other advisors, if any) has such knowledge and expertise in financial and
     business matters that such Seller is capable of evaluating the merits and
     risks of the exchange of such Seller's Shares for shares of PRI Common
     pursuant to this Agreement and of 

                                       4
<PAGE>
 
     protecting such Seller's interests in connection therewith. Such Seller has
     the ability to bear the economic risk of the investment in PRI Common.

                 3.4.2  Such Seller has been provided with copies of the
     Purchaser's Annual Report on Form 10-K, as amended, for the fiscal year
     ended September 30, 1996, the definitive proxy statements for the
     Purchaser's annual meeting of stockholders held on February 7, 1997 and the
     special meeting of Purchaser's stockholders held on April 22, 1997 and its
     Quarterly Reports on Form 10-Q for the fiscal quarters ended December 29,
     1996, March 30, 1997 and June 29, 1997.

                 3.4.3  Such Seller is acquiring shares of PRI Common for such
     Seller's own account and not with a view to, or for resale in connection
     with, any distribution thereof in violation of applicable law, and such
     Seller has no present intention of selling, granting any participating in,
     or otherwise distributing the same in violation of applicable law. Such
     Seller understands that the shares of PRI Common to be received by such
     Seller pursuant to this Agreement have not been registered under the
     Securities Act of 1933, as amended (the "Securities Act"), by reason of a
     specific exemption from the registration provisions of the Securities Act
     that depends upon, among other things, the bona fide nature of such
     Seller's investment intent and the accuracy of such Seller's
     representations, warranties and covenants as expressed herein. Such Seller
     understands that the shares of PRI Common to be received by such Seller
     pursuant to this Agreement are characterized as "restricted securities"
     under the Securities Act inasmuch as they are being acquired from PRI in a
     transaction not involving a public offering and that under such laws and
     application regulations such shares may be resold without registration
     under the Securities Act only in certain limited circumstances. Such Seller
     acknowledges that the shares of PRI Common must be held indefinitely unless
     subsequently registered under the Securities Act (pursuant to the
     Registration Rights Agreement or otherwise) or an exemption from such
     registration is available. Such Seller is aware of the provisions of Rule
     144 under the Securities Act which permit limited resale of shares
     purchased in a private placement subject to the satisfaction of certain
     conditions, including the existence of a public market for the shares, the
     availability of certain current public information about the Company, the
     resale occurring not less than two years after a party has purchased and
     paid for the security to be sold, the sale being effected through a
     "broker's transaction" or in transactions directly with a "market
     maker" (as provided by Rule 144(f) under the Securities Act) and the
     number of shares being sold during any three-month period not exceeding
     specified limitations.

                 3.4.4  It is understood that each certificate representing
     shares of PRI Common received by such Seller pursuant to this Agreement
     shall bear a legend substantially to the following effect (in addition to
     any legend required under applicable state securities laws):

                        "THESE SECURITIES HAVE NOT BEEN
                        REGISTERED UNDER THE SECURITIES ACT
                        OF 1933. THEY MAY NOT BE SOLD,

                                       5
<PAGE>
 
                        OFFERED FOR SALE, PLEDGED OR
                        HYPOTHECATED IN THE ABSENCE OF A
                        REGISTRATION STATEMENT IN EFFECT
                        WITH RESPECT TO THE SECURITIES UNDER
                        SUCH ACT OR AN OPINION OF COUNSEL
                        SATISFACTORY TO THE COMPANY THAT
                        SUCH REGISTRATION IS NOT REQUIRED."


                                  ARTICLE IV

                        REPRESENTATIONS AND WARRANTIES
                               OF THE PURCHASER

          As an inducement to each Seller to enter into this Agreement, the
Purchaser represents and warrants to each Seller as follows:

          Section 4.1.  Corporate Status.  The Purchaser is a corporation duly
                        ----------------        
incorporated, validly existing and in good standing under the laws of the
Commonwealth of Massachusetts, with all necessary corporate power and authority
to enter into and perform its obligations under this Agreement and the
Registration Rights Agreement.

          Section 4.2.  Authority.  This Agreement has been duly and validly
                        ---------                                           
authorized, executed and delivered by the Purchaser and is binding on and
enforceable against the Purchaser in accordance with its terms.  As of the
Closing Date, the Registration Rights Agreement will be duly and validly
authorized, executed and delivered by the Purchaser and will be binding and
enforceable against the Purchaser.

          Section 4.3.  Investment Purpose.  The Purchaser is acquiring the
                        ------------------
Shares for its own account for investment and not for or with a view to or for
resale in connection with any distribution thereof within the meaning of the
Securities Act.

          Section 4.4   Capitalization.  The authorized and outstanding capital
                        --------------                                         
stock of the Purchaser consists of (a) 400,000 shares of preferred stock, $.01
par value, none of which is issued and outstanding, and (b) 24,000,000 shares of
PRI Common, of which 14,570,920 shares were issued and outstanding as of June
29, 1997. All of the outstanding shares of PRI Common are, and the shares of PRI
Common when issued and delivered to each Seller in accordance with this
Agreement will be, duly authorized, validly issued, fully paid and nonassessable
and not subject to preemptive rights created by statute, the Purchaser's
articles of organization or bylaws, or any agreement to which the Purchaser is a
party or is bound. As of the date of the Agreement, all outstanding shares of
PRI Common are listed on the Nasdaq Stock Market, and there are no proceedings
to revoke or suspend such listing.

                                       6
<PAGE>
 
                                   ARTICLE V

                              ADDITIONAL AGREEMENT

          Section 5.1.  Further Action.  Each of the parties hereto shall use
                        -------------- 
all reasonable efforts to take or cause to be taken all appropriate action, do
or cause to be done all things necessary, proper or advisable, and execute and
deliver such documents and other papers, as may be required to carry out the
provisions of this Agreement and consummate and make effective the transactions
contemplated by this Agreement.

                                  ARTICLE VI

                             CONDITIONS TO CLOSING

          Section 6.1.  Condition to Each Party's Obligations.  The obligation
                        -------------------------------------     
of the Purchaser and each Seller to consummate the transactions contemplated by
this Agreement shall be subject to the consummation of the merger (the
"Merger") of E-Acquisition Corp., a California corporation and wholly owned
 ------
subsidiary of the Purchaser ("Acquisition Corp."), into Equipe Technologies,
                              -----------------
Inc., a California corporation ("Equipe"), pursuant to a certain Agreement and
                                 ------
Plan of Reorganization, dated as of October 25, 1997, among the Purchaser,
Equipe, Acquisition Corp. and certain shareholders of Equipe (the "Merger
                                                                   ------
Agreement").
- ---------

          Section 6.2.  Condition to Obligations of the Seller.  The obligations
                        --------------------------------------    
of each Seller to consummate the transactions contemplated by this Agreement
shall be subject to the fulfillment, at or prior to the Closing, of the
following conditions:

          (a)  the representations and warranties of the Purchaser contained in
this Agreement shall have been true and correct when made and shall be true and
correct in all material respects as of the Closing Date, with the same force and
effect as if made as of the Closing Date;

          (b)  the covenants and agreements contained in this Agreement to be
complied with by the Purchaser at or prior to the Closing shall have been
complied with in all materials respects;

          (c)  the Registration Rights Agreement shall have been duly executed
and delivered to each Seller by the Purchaser; and

          (d)  the board of directors of PRI shall have authorized, and any
other necessary corporate action shall have been taken by PRI to cause, the
issuance, as of the Closing, of nonqualified stock options to purchase shares of
PRI Common to the employees of the Company listed on Schedule 6.2, in the
                                                     ------------
respective amounts listed on Schedule 6.2 (the "PRI Options"). Such PRI Options
                             ------------
shall be at an exercise price equal to the last reported sale price of the PRI
Common as reported by the Nasdaq National Market on the Closing Date,

                                       7
<PAGE>
 
and shall otherwise be consistent in form and substance with the nonqualified
stock options granted by PRI to employees having comparable responsibilities.

          Section 6.3.  Conditions to Obligations of the Purchase.  The
                        -----------------------------------------
obligations of the Purchaser to consummate the transactions contemplated by this
Agreement shall be subject to the fulfillment, at or prior to the Closing, of
the following conditions:

          (a)  the representations and warranties of each Seller and of the
Company contained in this Agreement shall have been true and correct when made
and shall be true and correct in all material respects as of the Closing Date
with the same force and effect as if made as of the Closing Date; and

          (b)  the covenants and agreements contained in this Agreement to be
complied with by each Seller and by the Company at or prior to the Closing shall
have been complied with in all material respects.

                                  ARTICLE VII

                             TERMINATION AND WAIVER

          Section 7.1.  Termination.  This Agreement may be terminated at any
                        -----------
time prior to the Closing:

          (a)  by the mutual written consent of the Purchaser, the Company and
all of the Sellers;

          (b)  by either the Purchaser, the Company or the Sellers in the event
that any Governmental Authority shall have issued an order, decree or ruling or
taken any other action restraining, enjoining or otherwise prohibiting the
transactions contemplated by this Agreement and such order, decree, ruling or
other action shall have become final and nonappealable; or

          (c)  by either the Purchaser, the Company or the Sellers in the event
that the Merger Agreement shall have been terminated pursuant to its terms.

          Section 7.2.  Effect of Termination.  In the event of termination of
                        ---------------------
this Agreement as provided in Section 7.1, this Agreement shall forthwith become
void and there shall be no liability on the part of any party hereto except that
nothing herein shall relieve any party from liability for any breach of this
Agreement.

          Section 7.3.  Waiver.  Any extension or waiver shall be valid only if
                        ------
set forth in an instrument in writing signed by the party or parties to be bound
thereby. Any waiver of any term or condition shall not be construed as a waiver
of any subsequent breach or a subsequent waiver of the same term or condition,
or a waiver of any other term or condition, of this Agreement. The failure of
any party to assert any of its rights hereunder shall not constitute a waiver of
any of such rights.

                                       8
<PAGE>
 
                                 ARTICLE VIII

                               GENERAL PROVISIONS

          Section 8.1.  Expenses.  Except as otherwise specified in this
                        --------
Agreement, all costs and expenses, including, without limitation, fees and
disbursements of counsel, financial advisors and accountants, incurred in
connection with this Agreement and the transactions contemplated hereby shall be
paid by the party incurring such costs and expenses, whether or not the Closing
shall have occurred.

          Section 8.2.  Notices.  All notices, requests, claims, demands and
                        -------
other communications hereunder shall be in writing and shall be deemed to have
been duly given or made as of the date delivered, mailed or sent if delivered
personally or by courier, mailed by registered or certified mail (postage
prepaid, return receipt requested) or sent by overnight courier or facsimile, to
the respective parties at the following addresses or telecopier numbers (or at
such other address or fax number for a party as shall be specified in a notice
given in accordance with this Section 8.3):

          (a)  if to a Seller, to the address set forth for such Seller on
Schedule A hereto;

          (b)  if to the Company:

               E-Machine, Inc.
               1211 Alderwood Avenue
               Sunnyvale, CA 94089-2202
               Attention:  President

               with a copy to:

               Brobeck, Phleger & Harrison LLP
               Spear Street Tower
               One Market
               San Francisco, CA  94105
               Fax:  (415) 442-1010
               Attention:  Michael J. Kennedy, Esq.

          (c)  if to the Purchaser:

               PRI Automation, Inc.
               800 Middlesex Turnpike
               Billerica, MA 01821-3986
               Fax:  (978) 671-9430
               Attention:  Mitchell G. Tyson, President

                                       9
<PAGE>
 
               with a copy to:

               Foley, Hoag & Eliot, LLP
               One Post Office Square
               Boston, MA 02019
               Fax:  (617) 832-7000
               Attention:  Robert L. Birnbaum, Esq.

          Section 8.3.  Public Announcements.  No party to this Agreement shall
                        --------------------                                   
make, or cause to be made, any press release or public announcement or otherwise
communicate with any news media in respect of this Agreement or the transactions
contemplated hereby without the prior written consent of the other parties.

          Section 8.4.  Headings.  The descriptive headings contained in this
                        --------                                             
Agreement are for convenience of reference only and shall not affect in any way
the meaning or interpretation of this Agreement

          Section 8.5.  Severability.  If any term or other provision of this
                        ------------                                         
Agreement is invalid, illegal or incapable of being enforced by any Law or
public policy, all other terms and provisions of this Agreement shall
nevertheless remain in full force and effect so long as the economic or legal
substance of the transactions contemplated hereby is not affected in any manner
materially adverse to any party.  Upon such determination that any term or other
provision is invalid, illegal or incapable of being enforced, the parties hereto
shall negotiate in good faith to modify this Agreement so as to effect the
original intent of the parties as closely as possible in an acceptable manner in
order that the transactions contemplated hereby are consummated as originally
contemplated to the greatest extent possible.

          Section 8.6.  Entire Agreement.  This Agreement constitutes the entire
                        ----------------                                        
agreement of the parties hereto with respect to the subject matter hereof and
supersedes all prior agreements and undertakings, both written and oral, between
each Seller and the Purchaser with respect to the subject matter hereof.

          Section 8.7.  Assignment.  This Agreement may not be assigned by
                        ----------
operation of Law or otherwise without the express written consent of each Seller
and the Purchaser (which consent may be granted or withheld in the sole
discretion of each Seller or the Purchaser); provided, however, that the
Purchaser may assign this Agreement to an Affiliate of the Purchaser without the
consent of any Seller.

          Section 8.8.  No Third Party Beneficiaries.  This Agreement shall be
                        ----------------------------                          
binding upon and inure solely to the benefit of the parties hereto and their
permitted assigns and nothing herein, express or implied, is intended to or
shall confer upon any other Person any legal or equitable right, benefit or
remedy of any nature whatsoever under or by reason of this Agreement.

                                       10
<PAGE>
 
          Section 8.9.   Amendment.  This Agreement may not be amended or
                         ---------
modified except (a) by an instrument in writing signed by, or on behalf of, each
Seller and the Purchaser or (b) by a waiver in accordance with Section 7.3.

          Section 8.10.  Governing Law.  This Agreement shall be governed by,
                         -------------
and construed in accordance with, the laws of the Commonwealth of Massachusetts
applicable to contracts executed in and to be performed entirely within that
state.

          Section 8.11.  Counterparts.  This Agreement may be executed in one or
                         ------------
more counterparts, and by the different parties hereto in separate counterparts,
each of which when executed shall be deemed to be an original but all of which
taken together shall constitute one and the same agreement.

          Section 8.12.  Specific Performance.  The parties hereto agreement
                         --------------------                               
irreparable damage would occur in the event any provision of this Agreement was
not performed in accordance with the terms hereof and that the parties shall be
entitled to specific performance of the terms hereof, in addition to any other
remedy at Law or equity.

          Section 8.13.  Indemnity Acknowledgment.  Each Seller hereby
                         ------------------------
acknowledges and agrees, jointly and severally, to be bound by the provisions of
Article X and, to the extent applicable to Article X, Article XII of the Merger
Agreement as if such Seller were a "Holder" (as defined in the Merger
Agreement).

                                   *   *   *

                                       11
<PAGE>
 
          IN WITNESS WHEREOF, each Seller has executed this Agreement in his or
her individual capacity and the Purchaser has caused this Agreement to be
executed by its officer thereunto duly authorized as of the date first written
above.

PURCHASER:                              SELLERS:
 
PRI AUTOMATION, INC.
 

By: /s/ M. Wiesler
  ------------------------------       ______________________________________
Name:   Mordechai Wiesler               Paul Rogan
Title:  Chief Executive Officer
 
                                        ______________________________________
                                        James Cameron
 
  
                                        ______________________________________
                                        Frantisek Pavlik
 
  
                                        ______________________________________
                                        Lubomir Skrobak
 
 
                                        ______________________________________
                                        Steven The
 
 
 
                                        ______________________________________
                                        Mario Plascencia
<PAGE>
 
          IN WITNESS WHEREOF, each Seller has executed this Agreement in his or
her individual capacity and the Purchaser has caused this Agreement to be
executed by its officer thereunto duly authorized as of the date first written
above.

PURCHASER:                              SELLERS:
 
PRI AUTOMATION, INC.


                                        /s/ Paul Rogan
By:_____________________________        --------------------------------------
   Name:                                Paul Rogan
   Title:
 
                                        /s/ James Cameron
                                        --------------------------------------
                                        James Cameron
 
  
                                        /s/ Frantisek Pavlik
                                        --------------------------------------
                                        Frantisek Pavlik
 
  
                                        /s/ Lubomir Skrobak
                                        --------------------------------------
                                        Lubomir Skrobak
 

                                        ______________________________________
                                        Steven The
 
 
                                        /s/ Mario Plascencia
                                        --------------------------------------
                                        Mario Plascencia
<PAGE>
 
          IN WITNESS WHEREOF, each Seller has executed this Agreement in his or
her individual capacity and the Purchaser has caused this Agreement to be
executed by its officer thereunto duly authorized as of the date first written
above.

PURCHASER:                              SELLERS:
 
PRI AUTOMATION, INC.


                                        /s/ Paul Rogan
By:_____________________________        --------------------------------------
   Name:                                Paul Rogan
   Title:
 
                                        ______________________________________
                                        James Cameron
 
  
                                        /s/ Frantisek Pavlik
                                        --------------------------------------
                                        Frantisek Pavlik
 
  
                                        ______________________________________
                                        Lubomir Skrobak
 

                                        /s/ Steven The
                                        ______________________________________
                                        Steven The
 
 
                                        /s/ Mario Plascencia
                                        --------------------------------------
                                        Mario Plascencia
<PAGE>
 
            Stock Purchase Agreement, dated as of October 25, 1997,
      among PRI Automation, Inc. and the Shareholders of E-Machine, Inc.
- --------------------------------------------------------------------------------

Schedules Omitted In Accordance with Item 601(b)(2) of Regulation S-K:

          (a) Schedule of the stockholders of E-Machine;

          (b) Schedule of exceptions to Article III of the Stock Purchase
Agreement, dated as of October 25, 1997, among PRI and the Shareholders of E-
Machine; and

          (c) Schedule of options to be issued to employees of E-Machine.

                                 *     *     *

          PRI Automation, Inc. ("PRI") will furnish supplementally a copy of any
omitted schedule to the Securities and Exchange Commission upon request.  PRI
may request confidential treatment pursuant to Rule 24b-2 of the Securities
Exchange Act of 1934, as amended, for any schedule so furnished.

<PAGE>
                                                                   EXHIBIT 10.21


      ===================================================================



                   ________________________________________

                           STOCK PURCHASE AGREEMENT

                   ________________________________________

                                     Among

                             PRI AUTOMATION, INC.,

                                      and

                 THE SHAREHOLDERS OF EQUIPE JAPAN CORPORATION


                         Dated as of October 25, 1997


      ===================================================================
<PAGE>
 
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                      Page
                                                                      ----
<S>                                                                   <C>
 
ARTICLE I    DEFINITIONS.............................................   1
 
     Section 1.1.     Certain Defined Terms..........................   1
 
ARTICLE II   PURCHASE AND SALE.......................................   2
 
     Section 2.1.     Purchase and Sale of the Shares................   2
     Section 2.2.     Purchase Price.................................   2
     Section 2.3.     Closing........................................   2
 
ARTICLE III  REPRESENTATIONS AND WARRANTIES OF EACH SELLER...........   4
 
     Section 3.1.     Authority......................................   4
     Section 3.2.     Ownership......................................   4
     Section 3.3.     Further Assurances.............................   4
     Section 3.4.     Investment in PRI Common.......................   4
 
ARTICLE IV   REPRESENTATIONS AND WARRANTIES OF THE PURCHASER.........   6
 
     Section 4.1.     Corporate Status...............................   6
     Section 4.2.     Authority......................................   6
     Section 4.3.     Investment Purpose.............................   6
     Section 4.4.     Capitalization.................................   6
 
ARTICLE V    ADDITIONAL AGREEMENT....................................   7
 
     Section 5.1.     Further Action.................................   7
 
ARTICLE VI   CONDITIONS TO CLOSING...................................   7
 
     Section 6.1.     Condition to Each Party's Obligations..........   7
     Section 6.2.     Condition to Obligations of the Seller.........   7
     Section 6.3.     Conditions to Obligations of the Purchase......   8
 
ARTICLE VII  TERMINATION AND WAIVER..................................   8
 
     Section 7.1.     Termination....................................   8
     Section 7.2.     Effect of Termination..........................   8
     Section 7.3.     Waiver.........................................   8
</TABLE> 

                                      i.
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                       Page
                                                                       ----
<S>                                                                    <C> 
ARTICLE VIII          GENERAL PROVISIONS.............................   9
 
     Section 8.1.     Expenses.......................................   9
     Section 8.2.     Notices........................................   9
     Section 8.3.     Public Announcements...........................  10
     Section 8.4.     Headings.......................................  10
     Section 8.5.     Severability...................................  10
     Section 8.6.     Entire Agreement...............................  10
     Section 8.7.     Assignment.....................................  10
     Section 8.8.     No Third Party Beneficiaries...................  11
     Section 8.9.     Amendment......................................  11
     Section 8.10.    Governing Law..................................  11
     Section 8.11.    Counterparts...................................  11
     Section 8.12.    Specific Performance...........................  11
     Section 8.13.    Indemnity Acknowledgment.......................  11
</TABLE>

                                      ii.
<PAGE>
 
          STOCK PURCHASE AGREEMENT, dated as of October 25, 1997, among PRI
Automation, Inc., a Massachusetts corporation (the "Purchaser"), and each of the
                                                    ---------          
persons and entities listed on Schedule A hereto, each of which is referred to
as a "Seller".
      ------

                             W I T N E S S E T H:
                             - - - - - - - - - -

          WHEREAS, each Seller owns the number of shares (individually, a
"Share" and, collectively, the "Shares") of Equipe Japan Corporation, a
 -----                          ------                                  
Japanese joint-stock company (the "Company"), set forth opposite each Seller's
                                   -------                                     
name on Schedule A hereto; and

          WHEREAS, each Seller wishes to sell to the Purchaser, and the
Purchaser wishes to purchase from each Seller, the Shares, upon the terms and
subject to the conditions set forth herein.

          NOW, THEREFORE, in consideration of the promises and the mutual
agreements and covenants hereinafter set forth, the Purchaser and the Seller
hereby agree as follows:


                                   ARTICLE I

                                  DEFINITIONS

          Section 1.1 Certain Defined Terms.  As used in this Agreement, the
                      ---------------------                                 
following terms shall have the following meanings:

          "Action" means any claim, action, suit, arbitration, inquiry,
           ------                                                       
proceeding or investigation by or before any Governmental Authority.

          "Affiliate" means, with respect to any specified Person, any other
           ---------                                                         
Person that directly, or indirectly through one or more intermediaries,
controls, is controlled by or is under common control with such specified
Person.

          "Closing" has the meaning specified in Section 2.3(a).
           -------                                               

          "Closing Date" has the meaning specified in Section 2.3(a).
           ------------                                               

          "Control" (including the terms "controlled by" and "under common
           -------                        -------------       ------------
control with"), with respect to the relationship between or among two or more
- ------------                                                                  
Persons, means the possession, directly or indirectly or as trustee or executor,
of the power to direct or cause the direction of the affairs or management of a
Person, whether through the ownership of voting securities, as trustee or
executor, by contract or otherwise, including, without limitation, the
ownership, directly or indirectly, of securities having the power to elect a
majority of the board of directors or similar body governing the affairs of such
Person.

                                       1.
<PAGE>
 
          "Governmental Authority" means any United States federal, state or
           ----------------------                                            
local or any foreign government, governmental, regulatory or administrative
authority, agency or commission or any court, tribunal, or judicial or arbitral
body.

          "Governmental Order" means any order, writ, judgment, injunction,
           ------------------                                               
decree, stipulation, determination or award entered by or with any Governmental
Authority.

          "Law" means any federal, state, local or foreign statute, law,
           ---                                                           
ordinance, regulation, rule, code, order requirement or rule of common law.

          "Merger" has the meaning specified in Section 6.1.
           ------                                            

          "Merger Agreement" has the meaning specified in Section 6.1.
           ----------------                                            

          "Person" means any individual, partnership, firm, corporation,
           ------                                                        
association, trust, unincorporated organization or other entity, as well as any
syndicate or group that would be deemed to be a person under Section 13(d)(3) of
the Securities Exchange Act of 1934, as amended.

          "Purchase Price" has the meaning specified in Section 2.2.
           --------------                                            


                                  ARTICLE II

                               PURCHASE AND SALE

          Section 2.1 Purchase and Sale of the Shares. Upon the terms and
                      -------------------------------
subject to the conditions contained in this Agreement, at the Closing, each
Seller shall sell to the Purchaser, and the Purchaser shall purchase from each
Seller, the number of Shares set forth opposite each Seller's name on Schedule
A.

     Section 2.2 Purchase Price. The Purchase Price shall be 240 shares of
                 --------------
common stock, $.01 par value, of Buyer ("PRI Common") per Share (the
                                         ---------- 
"Purchase Price"), payable as provided in Section 2.3(b).
 --------------

          Section 2.3 Closing.   (a) Subject to the terms and conditions of this
                      -------                                               
Agreement, the sale and purchase of the Shares contemplated by this Agreement
shall take place at a closing (the "Closing") to be held at the offices of
                                    -------                                
Foley, Hoag & Eliot LLP, Boston, Massachusetts immediately after the
consummation of the Merger, or at such other place or at such other time or on
such other date as the Sellers selling in the aggregate more than half of the
Shares pursuant hereto and the Purchaser may mutually agree upon in writing (the
date on which the Closing takes place being the "Closing Date").
                                                 ------------    

                                       2.
<PAGE>
 
               (b)  At the Closing:

                    (i)    each Seller shall deliver or cause to be delivered to
                           the Purchaser stock certificates evidencing the
                           Shares which such Seller is selling pursuant hereto
                           duly endorsed in blank, or accompanied by stock
                           powers duly executed in blank, in form satisfactory
                           to the Purchaser;

                    (ii)   the Purchaser shall execute and deliver to each
                           Seller a counterpart of the Registration Rights
                           Agreement contemplated by the Merger Agreement (the
                           "Registration Rights Agreement");
                            -----------------------------

                    (iii)  each Seller shall execute and deliver to the
                           Purchaser a counterpart of the Registration Rights
                           Agreement;

                    (iv)   the Purchaser shall deliver to each Seller listed on
                           Schedule 6.2 a stock option agreement, pursuant to
                           ------------
                           which such Seller shall have nonqualified stock
                           options to purchase the number of shares of PRI
                           Common set forth opposite such Seller's name on
                           Schedule 6.2, with the terms set forth in Section
                           ------------
                           6.2(d); and

                    (v)    the Purchaser shall deliver to each Seller a stock
                           certificate evidencing the number of shares of PRI
                           Common set forth opposite each Seller's name on
                           Schedule A hereto.
                           ----------

               (c)  Each Seller hereby appoints James Cameron and Paul Rogan,
and each of them, acting singly, with full power of substitution, the
representatives and attorneys-in-fact of such Seller (the "Seller's
                                                           --------
Representatives"), with full power and authority in the name of and for and on
- ---------------
behalf of the undersigned to:

                    (i)    sell and deliver to the Purchaser the Shares at the
                           Closing;

                    (ii)   to execute and deliver the Registration Rights
                           Agreement, containing such terms and conditions as
                           the Seller's Representatives shall determine to be
                           advisable (provided that the terms and conditions of
                           each such agreement apply in a similar manner to the
                           Sellers and to the stockholders of Equipe
                           Technologies, Inc.);

                    (iii)  to receive at the Closing and forward promptly to
                           such Seller the stock certificate referred to in
                           Section 2.3(b)(v) above; and

                    (iv)   to take such other actions in furtherance of the
                           transactions contemplated hereby and by the Merger
                           Agreement as the

                                       3.
<PAGE>
 
                           Seller's Representatives shall determine in their
                           sole discretion to be appropriate or advisable.

          This power of attorney, and the authority confirmed hereby, being
coupled with an interest, are irrevocable and shall not be terminable by any act
or deed of the undersigned, by the death or incapacity of the undersigned, by
operation of law or otherwise.  Notwithstanding the foregoing, this power of
attorney shall terminate in the event that the Closing has not taken place by
May 31, 1998.

          (d)  Immediately following the execution hereof, each Seller will
deliver to the Seller's Representatives, to be held for the account of such
Seller and delivered to the Purchaser at the Closing, the certificate or
certificates representing the Shares to be sold by such Seller hereunder.


                                  ARTICLE III

                        REPRESENTATIONS AND WARRANTIES
                                OF EACH SELLER

          As an inducement to the Purchaser to enter into this Agreement, each
Seller, severally but not jointly, represents and warrants to the Purchaser as
follows:

          Section 3.1. Authority.  Such Seller has full power and authority to
                       ---------                                              
enter into this Agreement and the Registration Rights Agreement and this
Agreement is, and the Registration Rights Agreement, when executed and delivered
on behalf of such Seller by the Seller's Representatives, will be, binding and
enforceable against such Seller.

          Section 3.2. Ownership. Such Seller is the sole and exclusive record
                       ---------
and beneficial owner of all right, title and interest in and to the number of
Shares set forth opposite such Seller's name on Schedule A hereto, free and
clear of all claims, encumbrances of any nature whatsoever.

          Section 3.3. Further Assurances. Upon the delivery of the Shares to
                       ------------------
the Purchaser against payment as provided for herein, good title to the Shares,
free and clear of all security interests, liens, claims, charges, options and
encumbrances of every kind and nature whatsoever will pass to the Purchaser and
such Seller will execute and deliver to the Purchaser such documents and take
such further action as may be reasonably requested by the Purchaser in order to
transfer ownership of and title to all Shares being purchased from such Seller
to the Purchaser.

          Section 3.4. Investment in PRI Common.
                       ------------------------ 

               3.4.1  Such Seller (together with such Seller's financial and
     other advisors, if any) has such knowledge and expertise in financial and
     business matters that such Seller is capable of evaluating the merits and
     risks of the exchange of such

                                       4.
<PAGE>
 
     Seller's Shares for shares of PRI Common pursuant to this Agreement and of
     protecting such Seller's interests in connection therewith. Such Seller has
     the ability to bear the economic risk of the investment in PRI Common.

               3.4.2  Such Seller has been provided with copies of the
     Purchaser's Annual Report on Form 10-K, as amended, for the fiscal year
     ended September 30, 1996, the definitive proxy statements for the
     Purchaser's annual meeting of stockholders held on February 7, 1997 and the
     special meeting of Purchaser's stockholders held on April 22, 1997 and its
     Quarterly Reports on Form 10-Q for the fiscal quarters ended December 29,
     1996, March 30, 1997 and June 29, 1997.

               3.4.3  Such Seller is acquiring shares of PRI Common for such
     Seller's own account and not with a view to, or for resale in connection
     with, any distribution thereof in violation of applicable law, and such
     Seller has no present intention of selling, granting any participating in,
     or otherwise distributing the same in violation of applicable law.  Such
     Seller understands that the shares of PRI Common to be received by such
     Seller pursuant to this Agreement have not been registered under  the
     Securities Act of 1933, as amended (the "Securities Act"), by reason of a
                                              --------------                   
     specific exemption from the registration provisions of the Securities Act
     that depends upon, among other things, the bona fide nature of such
     Seller's investment intent and the accuracy of such Seller's
     representations, warranties and covenants as expressed herein.  Such Seller
     understands that the shares of PRI Common to be received by such Seller
     pursuant to this Agreement are characterized as "restricted securities"
     under the Securities Act inasmuch as they are being acquired from PRI in a
     transaction not involving a public offering and that under such laws and
     application regulations such shares may be resold without registration
     under the Securities Act only in certain limited circumstances.  Such
     Seller acknowledges that the shares of PRI Common must be held indefinitely
     unless subsequently registered under the Securities Act (pursuant to the
     Registration Rights Agreement or otherwise) or an exemption from such
     registration is available.  Such Seller is aware of the provisions of Rule
     144 under the Securities Act which permit limited resale of shares
     purchased in a private placement subject to the satisfaction of certain
     conditions, including the existence of a public market for the shares, the
     availability of certain current public information about the Company, the
     resale occurring not less than two years after a party has purchased and
     paid for the security to be sold, the sale being effected through a
     "broker's transaction" or in transactions directly with a "market
     maker" (as provided by Rule 144(f) under the Securities Act) and the
     number of shares being sold during any three-month period not exceeding
     specified limitations.

               3.4.4  It is understood that each certificate representing shares
     of PRI Common received by such Seller pursuant to this Agreement shall bear
     a legend substantially to the following effect (in addition to any legend
     required under applicable state securities laws):

                       "THESE SECURITIES HAVE NOT BEEN 
                       REGISTERED UNDER THE SECURITIES ACT

                                       5.
<PAGE>
 
                       OF 1933.  THEY  MAY NOT BE SOLD,
                       OFFERED FOR SALE, PLEDGED OR
                       HYPOTHECATED IN THE ABSENCE OF A
                       REGISTRATION STATEMENT IN EFFECT 
                       WITH RESPECT TO THE SECURITIES
                       UNDER SUCH ACT OR AN OPINION OF
                       COUNSEL SATISFACTORY TO THE
                       COMPANY THAT SUCH REGISTRATION IS
                       NOT REQUIRED."


                                  ARTICLE VI

                        REPRESENTATIONS AND WARRANTIES
                               OF THE PURCHASER

          As an inducement to each Seller to enter into this Agreement, the
Purchaser represents and warrants to each Seller as follows:

          Section 4.1. Corporate Status. The Purchaser is a corporation duly
                       ----------------
incorporated, validly existing and in good standing under the laws of the
Commonwealth of Massachusetts, with all necessary corporate power and authority
to enter into and perform its obligations under this Agreement and the
Registration Rights Agreement.

          Section 4.2. Authority.  This Agreement has been duly and validly
                       ---------                                           
authorized, executed and delivered by the Purchaser and is binding on and
enforceable against the Purchaser in accordance with its terms.  As of the
Closing Date, the Registration Rights Agreement will be duly and validly
authorized, executed and delivered by the Purchaser and will be binding and
enforceable against the Purchaser.

          Section 4.3. Investment Purpose. The Purchaser is acquiring the Shares
                       ------------------ 
for its own account for investment and not for or with a view to or for resale
in connection with any distribution thereof within the meaning of the Securities
Act.

          Section 4.4. Capitalization.  The authorized and outstanding capital
                       --------------                                         
stock of the Purchaser consists of (a) 400,000 shares of preferred stock, $.01
par value, none of which is issued and outstanding, and (b) 24,000,000 shares of
PRI Common, of which 14,570,920 shares were issued and outstanding as of June
29, 1997. All of the outstanding shares of PRI Common are, and the shares of PRI
Common when issued and delivered to each Seller in accordance with this
Agreement will be, duly authorized, validly issued, fully paid and nonassessable
and not subject to preemptive rights created by statute, the Purchaser's
articles of organization or bylaws, or any agreement to which the Purchaser is a
party or is bound. As of the date of the Agreement, all outstanding shares of
PRI Common are listed on the Nasdaq Stock Market, and there are no proceedings
to revoke or suspend such listing.

                                       6.
<PAGE>
 
                                   ARTICLE V

                             ADDITIONAL AGREEMENT

          Section 5.1.   Further Action. Each of the parties hereto shall use
                         --------------   
all reasonable efforts to take or cause to be taken all appropriate action, do
or cause to be done all things necessary, proper or advisable, and execute and
deliver such documents and other papers, as may be required to carry out the
provisions of this Agreement and consummate and make effective the transactions
contemplated by this Agreement.


                                  ARTICLE VI

                             CONDITIONS TO CLOSING

          Section 6.1.   Condition to Each Party's Obligations. The obligation
                         -------------------------------------
of the Purchaser and each Seller to consummate the transactions contemplated by
this Agreement shall be subject to the consummation of the merger (the
"Merger") of E-Acquisition Corp., a California corporation and wholly owned
 ------
subsidiary of the Purchaser ("Acquisition Corp."), into Equipe Technologies,
                              ----------------
Inc., a California corporation ("Equipe"), pursuant to a certain Agreement and
Plan of Reorganization, dated as of October 25, 1997, among the Purchaser,
Equipe, Acquisition Corp. and certain shareholders of Equipe (the "Merger
                                                                   ------
Agreement").
- ---------    

          Section 6.2.   Condition to Obligations of the Seller. The obligations
                         --------------------------------------
of each Seller to consummate the transactions contemplated by this Agreement
shall be subject to the fulfillment, at or prior to the Closing, of the
following conditions:

          (a)  the representations and warranties of the Purchaser contained in
this Agreement shall have been true and correct when made and shall be true and
correct in all material respects as of the Closing Date, with the same force and
effect as if made as of the Closing Date;

          (b)  the covenants and agreements contained in this Agreement to be
complied with by the Purchaser at or prior to the Closing shall have been
complied with in all materials respects;

          (c)  the Registration Rights Agreement shall have been duly executed
and delivered to each Seller by the Purchaser; and

          (d)  the board of directors of PRI shall have authorized, and any
other necessary corporate action shall have been taken by PRI to cause, the
issuance, as of the Closing, of nonqualified stock options to purchase shares of
PRI Common to those Sellers listed on Schedule 6.2, in the respective amounts
                                      ------------  
listed on Schedule 6.2 (the "PRI Options"). Such PRI Options shall be at an
          ------------
exercise price equal to the last reported sale price of the PRI Common as
reported by the Nasdaq National Market on the Closing Date, and shall otherwise

                                       7.
<PAGE>
 
be consistent in form and substance with the nonqualified stock options granted
by PRI to employees having comparable responsibilities.

          Section 6.3.   Conditions to Obligations of the Purchase. The
                         -----------------------------------------             
obligations of the Purchaser to consummate the transactions contemplated by this
Agreement shall be subject to the fulfillment, at or prior to the Closing, of
the following conditions:

          (a)  the representations and warranties of each Seller and of the
Company contained in this Agreement shall have been true and correct when made
and shall be true and correct in all material respects as of the Closing Date
with the same force and effect as if made as of the Closing Date; and

          (b)  the covenants and agreements contained in this Agreement to be
complied with by each Seller and by the Company at or prior to the Closing shall
have been complied with in all material respects;


                                  ARTICLE VII

                            TERMINATION AND WAIVER

          Section 7.1.   Termination. This Agreement may be terminated at any
                         -----------
time prior to the Closing:

          (a)  by the mutual written consent of the Purchaser, the Company and
all of the Sellers;

          (b)  by either the Purchaser, the Company or the Sellers in the event
that any Governmental Authority shall have issued an order, decree or ruling or
taken any other action restraining, enjoining or otherwise prohibiting the
transactions contemplated by this Agreement and such order, decree, ruling or
other action shall have become final and nonappealable; or

          (c)  by either the Purchaser, the Company or the Sellers in the event
that the Merger Agreement shall have been terminated pursuant to its terms.

          Section 7.2.   Effect of Termination. In the event of termination of
                         ---------------------
this Agreement as provided in Section 7.1, this Agreement shall forthwith become
void and there shall be no liability on the part of any party hereto except that
nothing herein shall relieve any party from liability for any breach of this
Agreement.

          Section 7.3.   Waiver. Any extension or waiver shall be valid only if
                         ------                                                
set forth in an instrument in writing signed by the party or parties to be bound
thereby.  Any waiver of any term or condition shall not be construed as a waiver
of any subsequent breach or a subsequent waiver of the same term or condition,
or a waiver of any other term or condition, 

                                       8.
<PAGE>
 
of this Agreement. The failure of any party to assert any of its rights
hereunder shall not constitute a waiver of any of such rights.


                                 ARTICLE VIII

                              GENERAL PROVISIONS

          Section 8.1.  Expenses. Except as otherwise specified in this
                        --------
Agreement, all costs and expenses, including, without limitation, fees and
disbursements of counsel, financial advisors and accountants, incurred in
connection with this Agreement and the transactions contemplated hereby shall be
paid by the party incurring such costs and expenses, whether or not the Closing
shall have occurred.

          Section 8.2.  Notices. All notices, requests, claims, demands and
                        -------                                               
other communications hereunder shall be in writing and shall be deemed to have
been duly given or made as of the date delivered, mailed or sent if delivered
personally or by courier, mailed by registered or certified mail (postage
prepaid, return receipt requested) or sent by overnight courier or facsimile, to
the respective parties at the following addresses or telecopier numbers (or at
such other address or fax number for a party as shall be specified in a notice
given in accordance with this Section 8.3):

          (a)  if to a Seller, to the address set forth for such Seller on
Schedule A hereto;

          (b)  if to the Company:

               Equipe Japan Corporation
               22-2 Nobe, Daichi-Town
               Iwakura-City
               Aichi-Prefecture, Japan 482
               Attention:  President

               with a copy to:

               Brobeck, Phleger & Harrison LLP
               Spear Street Tower
               One Market
               San Francisco, CA  94105
               Fax:  (415) 442-1010
               Attention:  Michael J. Kennedy, Esq.

                                       9.
<PAGE>
 
          (c)  if to the Purchaser:

               PRI Automation, Inc.
               800 Middlesex Turnpike
               Billerica, MA 01821-3986
               Fax:  (978) 671-9430
               Attention:  Mitchell G. Tyson, President

               with a copy to:

               Foley, Hoag & Eliot, LLP
               One Post Office Square
               Boston, MA 02019
               Fax:  (617) 832-7000
               Attention:  Robert L. Birnbaum, Esq.

          Section 8.3.  Public Announcements.  No party to this Agreement shall
                        --------------------                                   
make, or cause to be made, any press release or public announcement or otherwise
communicate with any news media in respect of this Agreement or the transactions
contemplated hereby without the prior written consent of the other parties.

          Section 8.4.  Headings.  The descriptive headings contained in this
                        --------
Agreement are for convenience of reference only and shall not affect in any way
the meaning or interpretation of this Agreement

          Section 8.5.  Severability.  If any term or other provision of this
                        ------------                                           
Agreement is invalid, illegal or incapable of being enforced by any Law or
public policy, all other terms and provisions of this Agreement shall
nevertheless remain in full force and effect so long as the economic or legal
substance of the transactions contemplated hereby is not affected in any manner
materially adverse to any party.  Upon such determination that any term or other
provision is invalid, illegal or incapable of being enforced, the parties hereto
shall negotiate in good faith to modify this Agreement so as to effect the
original intent of the parties as closely as possible in an acceptable manner in
order that the transactions contemplated hereby are consummated as originally
contemplated to the greatest extent possible.

          Section 8.6.  Entire Agreement. This Agreement constitutes the entire
                        ----------------     
agreement of the parties hereto with respect to the subject matter hereof and
supersedes all prior agreements and undertakings, both written and oral, between
each Seller and the Purchaser with respect to the subject matter hereof.

          Section 8.7.  Assignment. This Agreement may not be assigned by
                        ----------
operation of Law or otherwise without the express written consent of each Seller
and the Purchaser (which consent may be granted or withheld in the sole
discretion of each Seller or the Purchaser); provided, however, that the
Purchaser may assign this Agreement to an Affiliate of the Purchaser without the
consent of any Seller.

                                      10.
<PAGE>
 
          Section 8.8.   No Third Party Beneficiaries.  This Agreement shall be
                         ----------------------------                          
binding upon and inure solely to the benefit of the parties hereto and their
permitted assigns and nothing herein, express or implied, is intended to or
shall confer upon any other Person any legal or equitable right, benefit or
remedy of any nature whatsoever under or by reason of this Agreement.

          Section 8.9.   Amendment. This Agreement may not be amended or
                         ---------                                           
modified except (a) by an instrument in writing signed by, or on behalf of, each
Seller and the Purchaser or (b) by a waiver in accordance with Section 7.3.

          Section 8.10   Governing Law. This Agreement shall be governed by, and
                         -------------
construed in accordance with, the laws of the Commonwealth of Massachusetts
applicable to contracts executed in and to be performed entirely within that
state.

          Section 8.11.  Counterparts. This Agreement may be executed in one or
                         ------------
more counterparts, and by the different parties hereto in separate counterparts,
each of which when executed shall be deemed to be an original but all of which
taken together shall constitute one and the same agreement.

          Section 8.12.  Specific Performance.  The parties hereto agreement
                         --------------------                               
irreparable damage would occur in the event any provision of this Agreement was
not performed in accordance with the terms hereof and that the parties shall be
entitled to specific performance of the terms hereof, in addition to any other
remedy at Law or equity.

          Section 8.13.  Indemnity Acknowledgment. Each Seller hereby
                         ------------------------                             
acknowledges and agrees, jointly and severally, to be bound by the provisions of
Article X and, to the extent applicable to Article X, Article XII of the Merger
Agreement as if such Seller were a "Holder" (as defined in the Merger
Agreement). 

                                     * * *

                                      11.
<PAGE>
 
          IN WITNESS WHEREOF, each Seller has executed this Agreement in his or
her individual capacity and the Purchaser has caused this Agreement to be
executed by its officer thereunto duly authorized as of the date first written
above.


PURCHASER:                              SELLERS:
 
PRI AUTOMATION, INC.

                                        

By: /s/ Mordechai Wiesler               /s/ Paul Rogan
    --------------------------------    --------------------------------
    Name:  Mordechai Wiesler            Paul Rogan  
    Title: Chief Executive Officer
 
 
                                        /s/ James Cameron
                                        --------------------------------
                                        James Cameron
 
 
 
                                        /s/ Frantisek Pavlik
                                        -------------------------------- 
                                        Frantisek Pavlik
 
 
 
                                        /s/ Lubomir Skrobak
                                        --------------------------------
                                        Lubomir Skrobak
 
 
 
                                        /s/ Steven The 
                                        --------------------------------
                                        Steven The
 
 
 
                                        /s/ Masahiro Kadowaki
                                        --------------------------------
                                        Masahiro Kadowaki
 
 
 
                                        /s/ Hidetsugu Yokoi
                                        --------------------------------
                                        Hidetsugu Yokoi
 
 
 
                                        /s/ Hideo Ukai
                                        --------------------------------  
                                        Hideo Ukai
 
 
 
                                        /s/ Mikinori Yasuda
                                        --------------------------------
                                        Mikinori Yasuda

                                      12.
<PAGE>
 
 
            Stock Purchase Agreement, dated as of October 25, 1997,
  among PRI Automation, Inc. and the Shareholders of Equipe Japan Corporation
- --------------------------------------------------------------------------------

Schedules Omitted In Accordance with Item 601(b)(2) of Regulation S-K:

          (a) Schedule of the stockholders of Equipe Japan; and

          (b) Schedule of options to be issued to employees of Equipe Japan.

                                 *     *     *

          PRI Automation, Inc. ("PRI") will furnish supplementally a copy of any
omitted schedule to the Securities and Exchange Commission upon request.  PRI
may request confidential treatment pursuant to Rule 24b-2 of the Securities
Exchange Act of 1934, as amended, for any schedule so furnished.



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