NETWORK PERIPHERALS INC
8-K, 1997-05-14
COMPUTER COMMUNICATIONS EQUIPMENT
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 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): April 29, 1997





                            NETWORK PERIPHERALS INC.
             (Exact name of registrant as specified in its charter)


           Delaware                      0-23970                  77-0216135
(State or other jurisdiction of   (Commission File Number)    (I.R.S. Employer
incorporation or organization)                               Identification No.)



    1371 McCarthy Boulevard, Milpitas, CA                           95035
   (Address of principal executive offices)                       (Zip Code)


       Registrant's telephone number, including area code: (408) 321-7300

              (Former name, former address and former fiscal year,
                          if changed since last report)






This report consists of 50 pages.

<PAGE>



Item 2.  Acquisition or Disposition of Assets

               (a) Pursuant to the Purchase Agreement dated as of April 29, 1997
(the "Purchase  Agreement"),  by and among the registrant,  Network  Peripherals
Inc.,  a Delaware  corporation  ("NPI"),  the holders of all of the  outstanding
stock of NetVision Corporation,  a Delaware corporation (the "Sellers") and Paul
Lowell and Robert J. Zecha (the "NVC Agents"),  the registrant acquired from the
Sellers all of the issued and  outstanding  shares (the  "Shares")  of NetVision
Corporation ("NVC"), and assumed certain payment obligations of NVC as set forth
in the Agreement. Pursuant to the Agreement, the Sellers received a cash payment
of $1.363  for each NVC  share  purchased  by the  Registrant,  amounting  to an
aggregate cash payment of $5,000,000,  of which  $441,326.38 was deposited in an
escrow  account as security for certain of the  Sellers'  agreement to indemnify
NPI for  certain  contingencies.  The  purchase  price was paid in cash from the
Company's  working  capital.  The  principle  used to  determine  the  amount of
consideration was arms-length negotiation.  Before the acquisition, there was no
material  relationship  between NVC and the registrant or any of its affiliates,
any director or officer of the registrant, or any associate of any such director
or  officer,  except  that Barry  Rubenstein,  a general  partner  of  Applewood
Associates,  L.P., a Seller  which owned  approximately  21% of the  outstanding
stock of NVC, is also a principal of Seneca Ventures,  which owns  approximately
6% of the  outstanding  stock of NPI. NPI does not consider  Seneca  Ventures an
affiliate of NPI.

               Before  the  acquisition,   NVC  was  a  privately-held   company
specializing in the development of Gigabit Ethernet products.  NVC has continued
as a wholly-owned  subsidiary of the registrant subsequent to the closing of the
Purchase Agreement, although its employees have become employees of NPI.

               The registrant considers the acquisition of the stock of NVC as a
purchase of a business, as defined in Rule 11-01(d) of Regulation S-X.

Item 7.  Financial Statements and Exhibits.

             (a)                    Since   NVC  will   not  be  a   significant
                                    subsidiary of NPI as defined in Rule 1.02(w)
                                    of Regulation  S-X, the  acquisition  of the
                                    Shares   of  NVC  does  not   constitute   a
                                    significant  business combination as defined
                                    in  Rule   11-01(b)   of   Regulation   S-X;
                                    therefore no financial statements of NVC are
                                    required  to be filed  pursuant to Article 3
                                    of Regulation S-X.

             (b)                    Since   NVC  will   not  be  a   significant
                                    subsidiary  of NPI as  defined  in Rule 1.02
                                    (w) of Regulation  S-X, the  acquisition  of
                                    the  Shares  of NVC  does not  constitute  a
                                    significant  business combination as defined
                                    in  Rule   11-01(b)   of   Regulation   S-X;
                                    therefore no pro forma financial information
                                    is required to be filed  pursuant to Article
                                    11 of Regulation S-X.

             (c)                    The  following  exhibits are attached hereto
                                    and filed herewith:

                                    2.1     Form of Purchase  Agreement  between
                                            the registrant,  the Sellers and the
                                            NVC Agents.

                                    2.2     Press  release  dated April 30, 1997
                                            announcing the purchase.


                                      -2-
<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 thereunto duly authorized.

Date: May 14, 1997                               NETWORK PERIPHERALS, INC.



                                                 By: /s/ Robert O. Hersh
                                                    -----------------------
                                                    Robert O. Hersh
                                                    Chief Financial Officer

                                      -3-

<PAGE>



                            Network Peripherals, Inc.
                                  Exhibit Index
                                   to Form 8-K





Exhibit No.                      Description
- -----------                      -----------

2.1                  Purchase Agreement by and among
                     the registrant, the Sellers and the NVC
                     Agents, dated as of April 29, 1997

2.2                  Press Release dated April 30, 1997 announcing the purchase

                                      -4-



                                     FORM OF
                               PURCHASE AGREEMENT


                                  by and among


                            NETWORK PERIPHERALS INC.
                             a Delaware corporation,

                                     SELLERS

                                     and the

                                   NVC Agents







                           Dated as of April __, 1997



<PAGE>


                                     FORM OF
                               PURCHASE AGREEMENT


         THIS PURCHASE AGREEMENT (the "Agreement"),  is entered into as of April
___,  1997,  by and among  Network  Peripherals  Inc.,  a  Delaware  corporation
("NPI"), the holders of all of the outstanding stock of NetVision Corporation, a
Delaware  corporation  ("NVC"),  as set  forth  on  Exhibit  A  attached  hereto
(collectively  the  "Sellers" and each a "Seller") and Paul Lowell and Robert J.
Zecha, the NVC Agents (as defined in Section 8.12 below).

                                    RECITALS

         A. The Sellers are the owners of all of the outstanding Common Stock of
NVC, including all securities  (including warrants and options)  exercisable for
or convertible  into Common Stock of NVC (the "NVC Shares") prior to the Closing
Date (as defined below). All convertible or exerciseable securities of NVC shall
be exercised or converted  into Common Stock prior to or  concurrently  with the
Closing (as defined below).

         B. NPI wishes to acquire  the NVC Shares in exchange  for certain  cash
payments  pursuant to the terms of this Agreement and each of the Sellers wishes
to sell all NVC  Shares  which he,  she or it holds as of the  Closing  Date (as
defined below) to NPI pursuant to the terms of this Agreement (the "Purchase").

         The  parties  hereto  desire  to  set  forth  certain  representations,
warranties  and  covenants  made by each of the  other as an  inducement  to the
consummation of the Purchase.


                                    AGREEMENT

         NOW THEREFORE,  in consideration of the mutual covenants and agreements
contained herein, the parties agree as follows:

                                    ARTICLE I

                               PURCHASE AND SALE

                   1.1 Purchase and Sale.  At Closing (as defined in Section 1.3
hereof), the Sellers shall sell to NPI, and NPI shall purchase from the Sellers,
all of the issued and outstanding NVC Shares.

                   1.2      Aggregate Consideration.

                            (a)  In   consideration   of  Sellers'   obligations
hereunder,  (i) NPI shall pay the Sellers $1.363 per NVC Share,  or an aggregate
of $5,000,000,  to be paid as follows:  (i) a

<PAGE>

cash payment of  $4,558,672.84  (the  "Initial  Payment")  and (ii)  $441,327.16
deposited in escrow (the "Escrow  Payment") with the Escrow Agent, as defined in
Section  8.4  (collectively,  the  Initial  Payment  and the Escrow  Payment are
referred to herein as the "Purchase Price").  The amount constituting the Escrow
Payment shall be allocated on a pro-rata basis from the total payment due to the
Indemnifying  Sellers (as defined in Section 8.2) in accordance  with the number
of NVC Shares held by each Indemnifying  Seller immediately prior to the Closing
(as defined  below).  The Escrow Payment shall be held by the Escrow Agent until
released in accordance with Article VIII herein.

                            (b) At the Closing,  NPI shall pay NVC's obligations
to the  parties  and in the  amounts  set  forth on  Schedule  1.2(b) of the NVC
Disclosure Schedule (as hereinafter defined).

                            (c) After  the  Closing  (as  defined  below),  each
Seller shall cease to have any rights as  stockholders of NVC except such rights
as they may have pursuant to this Agreement.

                   1.3  Closing;  Delivery.  The  purchase  and  sale of the NVC
Shares shall take place at the offices of Parker Chapin  Flattau & Klimpl,  LLP,
1211 Avenue Of The  Americas,  New York,  NY 10036 at _____ __.m.,  on April __,
1997 (the  "Closing"),  or at such other  time and place as NPI and the  Sellers
shall  mutually  agree.  For  purposes  of  this  Agreement,   unless  otherwise
indicated,  the term "Closing" refers to the closing of the purchase and sale of
the NVC Shares with respect to a particular  Seller and the term "Closing  Date"
refers to the date of the Closing. At the Closing,  each Seller shall deliver to
NPI an executed copy of this Agreement, the Escrow Agreement (on the part of the
Indemnifying  Sellers only) and certificate(s)  representing the NVC Shares that
the  Seller  is  selling,  duly  endorsed  or  with  assignments  separate  from
certificate,  against  delivery  to  the  Seller  by  NPI  of  (a)  an  executed
counterpart of this Agreement and the Escrow Agreement and (b) a certified check
or wire transfer of the amount of the Initial Payment due to such Seller, as set
forth on Exhibit A hereto.


                                   ARTICLE II

           REPRESENTATIONS AND WARRANTIES OF THE INDEMNIFYING SELLERS

         Except as set forth in the disclosure  schedule  delivered to NPI on or
before the date of this  Agreement  and  attached  hereto  (the "NVC  Disclosure
Schedule")  the  Indemnifying  Sellers (as defined in Section 8.2),  jointly and
severally, represent and warrant to NPI as follows:

                   2.1   Organization,   Standing   and  Power;   Qualification;
Subsidiaries.

                            (a) NVC is a  corporation  duly  organized,  validly
existing  and in good  standing  under the laws of Delaware;  has all  requisite
corporate  power to own,  lease and operate its  properties  and to carry on its
business  as  currently  being  conducted  and  except as set forth in  


<PAGE>

Schedule 2.1(a), is duly qualified to do business and is in good standing in New
York and in each  jurisdiction  in which the failure to be so  qualified  and in
good  standing  would have a material  adverse  effect on the  business,  assets
(including   intangible   assets),   properties,   liabilities   (contingent  or
otherwise),  financial condition,  operations, results of operation or prospects
(a  "Material  Adverse  Effect")  of NVC;  and  except as set forth in  Schedule
2.1(a),  NVC does not directly or indirectly own any equity or similar  interest
in, or any interest convertible or exchangeable or exercisable for any equity or
similar  interest  in,  any  corporation,  partnership,  joint  venture or other
business association or entity. NVC is not in violation of any of the provisions
of its Certificate of Incorporation, Bylaws or other charter documents.

                            (b)  NVC  has  made  copies  of its  Certificate  of
Incorporation,  Bylaws,  minute book and stock transfer records available to NPI
that are complete  and accurate in all material  respects as of the date hereof,
and the minute book contains  minutes for all meetings of, each written  consent
executed by, NVC's  stockholders  and Board of Directors  and the  committees of
such Board of Directors, if any; such minutes, consents and agendas collectively
disclose all corporate actions taken by the stockholders, Board of Directors and
committees  of the Board of Directors of NVC since the date of  organization  of
such  corporation.,  and the stock  transfer  records set forth all transfers of
stock since inception of NVC.

                   2.2      NVC Capital Structure.

                            (a) The authorized  capital stock of NVC consists of
10,000,000  shares of Common Stock and 2,000,000 shares of Preferred Stock ("NVC
Capital Stock"), of which 3,668,290 shares of Common Stock, par value $0.001 per
share,  and no shares of Preferred  Stock, par value $0.01 per share, are issued
and  outstanding and are held of record by those persons set forth in Exhibit A.
All outstanding  NVC Shares have been duly  authorized and validly  issued,  are
fully paid and nonassessable,  and are subject to no preemptive rights or rights
of first refusal created by statute,  the Certificate of Incorporation or Bylaws
of NVC or any agreement to which NVC is a party or by which it is bound.

                            (b)  Except as set forth in Exhibit A, there are (i)
no equity securities of any class of NVC or any securities  exchangeable into or
exercisable  for such  equity  securities  issued,  reserved  for  issuance,  or
outstanding  and (ii) no outstanding  subscriptions,  options,  warrants,  puts,
calls,  rights, or other commitments or agreements of any character to which NVC
is a party or by  which it is bound  obligating  NVC to  issue,  deliver,  sell,
repurchase or redeem,  or cause to be issued,  delivered,  sold,  repurchased or
redeemed,  any equity  securities  of NVC or  obligating  NVC to grant,  extend,
accelerate the vesting of, change the price of, or otherwise amend or enter into
any such option,  warrant,  call, right,  commitment or agreement.  There are no
contracts, commitments or agreements relating to voting, purchase or sale of NVC
Capital  Stock  (i)  between  or among NVC and any of its  shareholders  or (ii)
between or among any NVC shareholders.
<PAGE>

                   2.3      Authority.

                            (a) To the extent such party has  entered  into each
agreement,  NVC has all requisite  corporate power and authority and each Seller
has all requisite  power and authority or capacity to enter into this Agreement,
the Waiver and Agreement  among all the Sellers dated as of the Closing Date and
attached hereto as Exhibit B and the Escrow  Agreement,  the Offer Letters,  the
Noncompetition  Agreements and the Proprietary  Information  Agreements (each as
defined below) (collectively, the "NVC Transaction Documents") and to consummate
the transactions  contemplated hereby and thereby. The execution and delivery of
the NVC  Transaction  Documents  applicable to NVC and the  consummation  of the
transactions  contemplated  thereby have been duly  authorized  by all necessary
corporate action on the part of NVC. The NVC Transaction Documents applicable to
NVC have been duly  executed and delivered by NVC and  constitute  the valid and
binding  obligations of NVC,  enforceable  against NVC in accordance  with their
terms, except as such  enforceability may be limited by bankruptcy,  insolvency,
moratorium  or other  similar laws  affecting or relating to  creditors'  rights
generally, and general principles of equity, regardless of whether asserted in a
proceeding in equity or at law.

                            (b) The execution and delivery by the Sellers of the
NVC  Transaction  Documents do not,  and the  consummation  of the  transactions
contemplated  hereby and thereby will not, (i) conflict  with,  or result in any
violation or breach of any provision of the NVC Certificate of  Incorporation or
Bylaws,  (ii) except for the requirement  that consents be obtained as set forth
in Schedule  2.3(b),  which  requirement is hereby waived by NPI,  result in any
violation or breach of, or constitute  (with or without notice or lapse of time,
or both) a default under, or give rise to a right of  termination,  cancellation
or  acceleration  of any material  obligation  or loss of any benefit  under any
note, mortgage,  indenture,  lease, contract or other agreement or obligation to
which  NVC is a party or by which  NVC or any of its  respective  properties  or
assets may be bound,  or (iii) conflict with or violate any permit,  concession,
franchise,  license,  judgment,  order, decree, statute, law, ordinance, rule or
regulation  applicable  to NVC or any of its  respective  properties  or assets,
except  in the  case of (ii)  and  (iii)  for any  such  conflicts,  violations,
defaults,  terminations,  cancellations  or  accelerations  which  would  not be
reasonably  likely to have a Material  Adverse  Effect on NVC or materially  and
adversely affect the ability of NVC to consummate the transactions  contemplated
by this Agreement in accordance with its terms.

                            (c)  The  NVC  Shares  are the  only  shares  of NVC
Capital  Stock  entitled  to vote with  respect  to the  Purchase.  No  consent,
approval,  order or  authorization  of, or  registration,  declaration or filing
with, any Governmental Entity (as defined in Section 9.2) is required by or with
respect to NVC in connection  with the execution and delivery of this  Agreement
or the other NVC Transaction  Documents or the  consummation of the transactions
contemplated  hereby or thereby except for (i) items  described in Schedule 2.3,
and  (iii)  such  other  consents,   authorizations,   filings,   approvals  and
registrations  which, if not obtained or made, would not be reasonably likely to
have a Material  Adverse  Effect on NVC or materially  and 


<PAGE>

adversely affect the ability of NVC to consummate the transactions  contemplated
by this Agreement in accordance with its terms.

                   2.4 Financial Statements.  NVC has delivered to NPI copies of
NVC's  unaudited  financial   statements  (balance  sheet,  trial  balance,  and
expenditure  statement)  for the year ended  December 31, 1996 and for the three
month  period  ended March 31, 1997 (the "NVC  Financial  Statements").  The NVC
Financial  Statements  were  prepared  in  accordance  with  generally  accepted
accounting  principles  ("GAAP")  applied on a consistent  basis  throughout the
periods  involved,  except  for  the  absence  of  required  footnotes.  The NVC
Financial  Statements  present  fairly in all material  respects  the  financial
position of NVC as of the respective  dates and the results of NVC's  operations
and cash flows for the periods  indicated.  NVC  maintains a standard  system of
accounting established and administered in accordance with GAAP.

                   2.5 Absence of Undisclosed Liabilities. NVC does not have any
liabilities,  either  accrued  or  contingent  (whether  or not  required  to be
reflected in financial  statements in accordance with GAAP),  and whether due or
to become due,  other than (i)  liabilities  reflected  or  provided  for on the
balance sheet as of March 31, 1997, (the "NVC Balance  Sheet")  contained in the
NVC Financial  Statements;  (ii) liabilities  specifically  described on the NVC
Disclosure  Schedule including  Schedule 2.5; and (iii) liabilities  incurred in
the ordinary course of business since March 31, 1997.

                   2.6 Absence of Certain Changes or Events. Except as set forth
in Schedule 2.6, and except as contemplated  by the NVC  Transaction  Documents,
and except as reflected in the NVC Financial  Statements,  since March 31, 1997,
NVC has conducted its business in the ordinary course and in a manner consistent
with past practices, and has not:

                            (a) suffered any event or occurrence that has had or
could reasonably be expected to have a Material Adverse Effect on NVC;

                            (b)  suffered  any  damage,   destruction  or  loss,
whether  covered by insurance or not,  having a Material  Adverse  Effect on its
properties or business;

                            (c) granted any increase in the compensation payable
or to become payable by NVC to its officers or employees;

                            (d) declared, set aside or paid any dividend or made
any other  distribution  on or in respect of the shares of its capital  stock or
declared  any  direct or  indirect  redemption,  retirement,  purchase  or other
acquisition of such shares;

                            (e) issued any  shares of its  capital  stock or any
warrants,  rights,  or options for, or entered into any  commitment  relating to
such capital  stock  except for  exercises  and  conversions  of employee  stock
options;
<PAGE>

                            (f) made any  change in the  accounting  methods  or
practices  it follows,  whether for general  financial or tax  purposes,  or any
change in depreciation or amortization policies or rates;

                            (g) sold, leased, abandoned or otherwise disposed of
any real property or machinery, equipment or other operating property;

                            (h)  sold,   assigned,   transferred,   licensed  or
otherwise disposed of any patent,  trademark,  trade name, brand name, copyright
(or pending application for any patent, trademark or copyright), invention, work
of authorship, process, know-how, formula or trade secret or interest thereunder
or other material intangible asset;

                            (i)  entered   into  any  material   commitment   or
transaction  (including without limitation any borrowing or capital expenditure)
individually  in excess of $20,000  or in the  aggregate  in excess of  $75,000,
except as contemplated by clause (l) below;

                            (j) incurred any  liability,  except in the ordinary
course of business and  consistent  with past  practice  and except  liabilities
contemplated by clauses (i), (ii) and (iii) of Section 2.5 of this Agreement;

                            (k)  permitted  or allowed  any of its  property  or
assets to be subjected to any mortgage,  deed of trust,  pledge,  lien, security
interest or other  encumbrance  of any kind,  except for liens for current taxes
not yet due and  purchase  money  security  interests  incurred in the  ordinary
course of business;

                            (l) made any capital  expenditure  or commitment for
additions  to  property,  plant or  equipment,  individually  in  excess  of Ten
Thousand dollars ($10,000) or in the aggregate in excess of Twenty-Five Thousand
dollars ($25,000);

                            (m) paid, loaned or advanced any amount to, or sold,
transferred or leased any properties or assets to, or entered into any agreement
or  arrangement  with any of its  officers,  directors  or  shareholders  or any
affiliate of any of the foregoing, other than employee compensation and benefits
and  reimbursement  of  employment  related  business  expenses  incurred in the
ordinary course of business; or

                            (n)  agreed  to take any  action  described  in this
Section 2.6 or which would constitute a breach of any of the  representations or
warranties of NVC contained in this Agreement.

                   2.7 Taxes.  As used in this  Agreement,  the terms "Tax" and,
collectively,  "Taxes" mean all taxes  however  denominated,  including  but not
limited  to, any and all  federal,  state and local  taxes of any country or any
political  subdivision  thereof,  assessments  and other  governmental  charges,
duties,  impositions and liabilities,  including taxes based upon or measured by
gross receipts,  income, profits, sales, use and occupation, and value added, ad
<PAGE>

valorem,  transfer,  franchise,  withholding,  payroll,  recapture,  employment,
excise and property taxes,  together with all interest,  penalties and additions
imposed with respect to such amounts and any obligations under any agreements or
arrangements  with any other person with  respect to such amounts and  including
any liability for taxes of a predecessor entity.

                            (a) NVC has  prepared  and timely filed all returns,
estimates,  information  statements  and  reports  required to be filed with any
taxing  authority  ("Returns")  relating  to any and  all  Taxes  concerning  or
attributable  to NVC or its  operations  with  respect  to Taxes for any  period
ending on or before the  Closing  Date and such  Returns are true and correct in
all  material  respects  and have been  completed  in all  material  respects in
accordance  with  applicable  law or an adequate  reserve has been made for such
Taxes on the NVC Balance Sheet, except as set forth in Schedule 2.7.

                            (b) NVC, as of the Closing Date:  (i) will have paid
all Taxes shown to be payable on such Returns covered by Schedule  2.7(a);  (ii)
will have  withheld  with  respect to its  employees  all Taxes  required  to be
withheld,  and (iii) will have no other Taxes  payable with respect to either or
both of the items or  periods  covered by such  Returns.  There are no liens for
Taxes upon the assets of NVC except liens for current Taxes not yet due.

                            (c)  There  is  no  Tax  deficiency  outstanding  or
assessed  or,  to the  best of the  Indemnifying  Sellers'  knowledge,  proposed
against NVC that is not  reflected as a liability  on the NVC Balance  Sheet nor
has NVC executed any agreements or waivers  extending any statute of limitations
on or extending the period for the assessment or collection of any Tax.

                            (d) NVC has no material liabilities for unpaid Taxes
that have not been  accrued for or reserved  on the NVC Balance  Sheet,  whether
asserted or unasserted, contingent or otherwise.

                            (e) NVC is not a party to any tax-sharing  agreement
or similar  arrangement  with any other party, or any contractual  obligation to
pay any Tax obligations of, or with respect to any transaction  relating to, any
other person or to indemnify any other person with respect to any Tax.

                   2.8      Tangible Assets and Real Property.

                            (a) NVC  owns or  leases  all  tangible  assets  and
properties  which are  necessary  for the conduct of its  business as  currently
conducted or which are reflected on the NVC Balance Sheet or acquired  since the
date of the  NVC  Balance  Sheet  ("Material  Tangible  Assets").  The  Material
Tangible  Assets are in good operating  condition and repair except for wear and
tear in the ordinary course.

                            (b)  NVC  has  good  and  marketable  title  to  all
Material  Tangible Assets that it owns, free and clear of all mortgages,  liens,
pledges, charges or encumbrances of any kind or character,  except for liens for
current taxes not yet due and payable,  except as set forth on
<PAGE>

Schedule 2.8(b). NVC has performed all the obligations  required to be performed
by it with respect to all Material Tangible Assets leased by it through the date
hereof.

                            (c) Assuming the due execution and delivery  thereof
by the other parties  thereto,  all leases of Material  Tangible Assets to which
NVC is a  party  are in  full  force  and  effect  and are  valid,  binding  and
enforceable  in  accordance  with  their  respective   terms,   except  as  such
enforceability  may be limited by (i)  bankruptcy  laws and other  similar  laws
affecting  creditors'  rights  generally and (ii) general  principles of equity,
regardless  of whether  asserted in a proceeding  in equity or at law.  True and
correct copies of all such leases have been provided to NPI.

                            (d) NVC owns no real  property.  The NVC  Disclosure
Schedule sets forth a true and complete list of all real property leased by NVC.
Assuming the due  execution and delivery  thereof by the other parties  thereto,
all such real  property  leases  are in full  force and  effect  and are  valid,
binding and enforceable in accordance  with their  respective  terms,  except as
such enforceability may be limited by (i) bankruptcy laws and other similar laws
affecting  creditors'  rights  generally and (ii) general  principles of equity,
regardless  of whether  asserted in a proceeding  in equity or at law.  True and
correct copies of all such real property leases have been provided to NPI.

                   2.9      Intellectual Property.

                            (a) NVC owns, or is licensed or otherwise  possesses
legally enforceable rights to use, all patents, trademarks, trade names, service
marks,  copyrights and mask works, and any applications for and registrations of
such patents,  trademarks, trade names, service marks, copyrights and mask works
and all processes, formulae, methods, schematics, technology, know-how, computer
software  programs  or  applications  and  tangible  or  intangible  proprietary
information  or material  that are  necessary  to conduct the business of NVC as
currently conducted, which are described in Schedule 2.9(a) (which together with
the property rights  described in Schedule 2.9(b) are referred to as, and to the
best  knowledge  of  the  Indemnifying  Sellers  constitute  all  of,  the  "NVC
Intellectual  Property Rights").  Except as set forth in Schedule 2.9(a), to the
best  knowledge  of the  Indemnifying  Sellers,  the  manufacturing,  marketing,
licensing or sale of any NVC Product  does not  infringe any patent,  trademark,
service mark,  copyright,  trade secret or other  proprietary right of any third
party.

                            (b)  Schedule   2.9(b)   contains  an  accurate  and
complete  description  of (i)  all  patents  and  patent  applications  and  all
trademarks,  trade names, service marks and registered  copyrights,  included in
the NVC Intellectual Property Rights,  including the jurisdictions in which each
such NVC  Intellectual  Property Right has been issued or registered or in which
any such application for such issuance and registration has been filed, (ii) all
licenses, sublicenses, distribution agreements and other agreements to which NVC
is a party  and  pursuant  to which  any  person  is  authorized  to use any NVC
Intellectual Property Rights or has the right to manufacture,  reproduce, market
or exploit any product of NVC (a "NVC Product") or any  adaptation,  translation
or derivative  work based on any NVC Product or any portion  thereof, 


<PAGE>

(iii) all licenses, sublicenses and other agreements to which NVC is a party and
pursuant to which NVC is  authorized  to use any third party  technology,  trade
secret, know-how,  process,  patent, trademark or copyright,  including software
("Licensed  Intellectual  Property"),  which is used in the  business  of NVC as
conducted , (iv) all joint  development  agreements to which NVC is a party, and
(v) all agreements with Governmental Entities or other third parties pursuant to
which NVC has obtained funding for research and development activities.

                            (c) NVC is not,  nor will it be as a  result  of the
performance of its obligations  under this Agreement,  in breach of any license,
sublicense or other agreement  relating to the NVC Intellectual  Property Rights
or Licensed Intellectual Property.

                            (d) NVC (i) has not received notice that it has been
sued in any suit, action or proceeding which involves a claim of infringement of
any  patent,  trademark,   service  mark,  copyright,   trade  secret  or  other
proprietary  right of any  third  party and (ii) has no  knowledge  of any claim
challenging  or  questioning  the  validity or  effectiveness  of any license or
agreement  relating  to  any  NVC  Intellectual   Property  Rights  or  Licensed
Intellectual Property.

                            (e)  Except as set  forth in  Schedule  2.9(e),  all
architectural   designs,   block   drawings,   source   code  and  object   code
incorporating,  embodying  or  reflecting  any NVC  Product  at any stage of its
development (the "NVC  Components")  were written,  developed and created solely
and exclusively by employees and/or contractors of NVC without the assistance of
any third party or were created by third parties who assigned ownership of their
rights with respect thereto to NVC by means of valid and enforceable agreements,
copies  of  which  have  been  provided  to  NPI.  NVC  has  at all  times  used
commercially  reasonable efforts to treat the NVC Products and NVC Components as
containing  trade  secrets and has not  disclosed or  otherwise  dealt with such
items in such a manner  as to cause  the  loss of such  trade  secrets  by their
release  into the public  domain that could  result in any event,  condition  or
circumstance that would or would be reasonably likely to have a Material Adverse
Effect on NVC.

                            (f)  Except as set forth in  Schedule  2.9(f),  each
person currently or formerly employed by NVC (including independent contractors,
if any) that has or had access to  confidential  information of NVC has executed
and delivered to NVC a confidentiality and non-disclosure  agreement in the form
previously provided to NPI. To the best of the Indemnifying  Sellers' knowledge,
neither the execution or delivery of any such agreement,  nor the carrying on of
NVC's business as currently  conducted and as currently proposed to be conducted
by any such person, as an employee or independent contractor,  has conflicted or
will  conflict  with,  or has  resulted or will result in a breach of the terms,
conditions  or  provisions  of, or  constitute a default  under,  any  contract,
covenant or instrument  under which any of such persons is obligated  that could
result  in any  event,  condition  or  circumstance  that  would,  or  would  be
reasonably likely to, have a Material Adverse Effect on NVC.

                   2.10 Bank Accounts.  The NVC  Disclosure  Schedule sets forth
the names and locations of all banks, trusts,  savings and loan associations and
other financial  institutions at which NVC maintains accounts of any nature, the
type of  accounts  maintained  at each  such 


<PAGE>

institution  and the names of all  persons  authorized  to draw  thereon or make
withdrawals therefrom.

                   2.11     Contracts.

                            (a) Except as set forth in Schedule 2.11(a),  NVC is
not a party or subject to any agreement,  obligation or  commitment,  written or
oral:

                                     (i)  that   calls  for  any  fixed   and/or
contingent  payment  or  expenditure  or any  related  series  of  fixed  and/or
contingent  payments or  expenditures by or to NVC totaling more than $25,000 in
any calendar year;

                                     (ii) with agents, advisors, salesmen, sales
representatives,  independent contractors or consultants that are not cancelable
by it on no more than thirty (30) days' notice and without liability, penalty or
premium;

                                     (iii) that  restricts  NVC from carrying on
anywhere  in  the  world  its  business  or any  portion  thereof  as  currently
conducted;

                                     (iv) to  provide  funds  to or to make  any
investment  in any  other  person  or  entity  (in the  form of a loan,  capital
contribution or otherwise);

                                     (v)  with   respect   to   obligations   as
guarantor,  surety, co-signer,  endorser,  co-maker,  indemnitor or otherwise in
respect of the obligation of any other person or entity;

                                     (vi)  for  any  line  of  credit,   standby
financing, revolving credit or other similar financing arrangement;

                                     (vii)   with  any   distributor,   original
equipment  manufacturer,  value added  remarketer or other similar person (A) in
which the annual  amount  involved  in fiscal  1996  exceeded  or is expected to
exceed in fiscal 1997 $25,000 in  aggregate  amount or (B) pursuant to which NVC
has granted or received  manufacturing  rights,  most favored  customer  pricing
provisions or exclusive marketing or other rights related to any product,  group
of products or territory;

                                     (viii)  requiring  NVC to indemnify  any of
its officers or directors for acts or omissions by such person; or

                                     (ix) between NVC, on the one hand,  and any
of the officers, directors, stockholders or employees of NVC, on the other hand,
including without limitation any indebtedness.
<PAGE>

                            (b)  To  the  best  of  the  Indemnifying   Sellers'
knowledge, no party to any such contract,  agreement or instrument has expressed
its intention to cancel, withdraw,  modify or amend such contract,  agreement or
instrument.  NVC has delivered to NPI or NPI's counsel true and complete  copies
of each agreement listed in Schedule 2.11(a).

                            (c)  NVC is  not in  material  default  under  or in
material  breach or violation  of, nor is there any valid basis for any claim of
material  default by NVC under,  or material  breach or violation by NVC of, any
contract,  commitment or  restriction to which NVC is a party or by which NVC or
any of its properties or assets is bound or affected which would have a Material
Adverse Effect on NVC or materially  and adversely  affect the ability of NVC or
the Sellers to consummate  the  transactions  contemplated  by this Agreement in
accordance with its terms. To the best of the Indemnifying  Sellers'  knowledge,
no other party is in material  default under or in material  breach or violation
of, nor, to the best of the Indemnifying Sellers' knowledge,  is there any valid
basis  for any  claim of  material  default  by any other  party  under,  or any
material breach or violation by any other party of, any contract, commitment, or
restriction  to which NVC is a party or by which NVC or any of its properties or
assets is bound or affected.

                            (d) Schedule  2.11(d) sets forth each  contract that
requires the consent of or notice to a third party prior to  consummation of the
Purchase, which requirements have been waived by NPI.

                   2.12  Labor  Difficulties.  NVC is not  engaged in any unfair
labor practice or in violation of any  applicable  laws  respecting  employment,
employment  practices or terms and conditions of employment.  There is no unfair
labor practice complaint against NVC pending, or to the best of the Indemnifying
Sellers'  knowledge  threatened,  before any  Governmental  Entity.  There is no
strike,  labor dispute,  slowdown,  or stoppage  pending,  or to the best of the
Indemnifying Sellers' knowledge threatened,  against NVC. NVC is not now and has
never been subject to any union organizing activities. NVC has never experienced
any work  stoppage  or  other  labor  difficulty.  NVC is in  compliance  in all
material respects with all currently applicable laws and regulations  respecting
employment,  discrimination  in employment,  terms and conditions of employment,
wages, hours and occupational  safety and health and employment  practices.  NVC
has fully complied with all applicable provisions of COBRA.

                   2.13     Environmental Matters.

                            (a)  No   substance   that  is   regulated   by  any
Governmental Entity or that has been designated by any Governmental Entity to be
radioactive, toxic, hazardous or otherwise a danger to health or the environment
(herein a  "Hazardous  Material")  is present,  to the best of the  Indemnifying
Sellers' knowledge, in, on or under any property that NVC has at any time owned,
operated, occupied or leased (each such property is referred to herein as a "NVC
Facility").
<PAGE>

                            (b)   NVC  has  not   transported,   stored,   used,
manufactured,  released or exposed any of its  employees  or any other person to
Hazardous  Materials  (a  "Hazardous  Materials  Activity")  in violation of any
applicable local, state or federal statute, rule, regulation, order or law.

                            (c) No action, proceeding, permit, revocation, writ,
injunction  or claim is  pending  or, to the best of the  Indemnifying  Sellers'
knowledge,  threatened  concerning  Hazardous Materials Activities of NVC or any
NVC  Facility  and NVC is now  aware of any  fact or  circumstance  which  could
involve  NVC  in  any  environmental  litigation  or  impose  any  environmental
liability upon NVC.

                            (d) Except as provided in Schedule 2.13(d), NVC does
not have any liability or obligation,  either accrued,  absolute,  contingent or
otherwise, for any environment-related  Taxes, charges or any other expenses set
forth in the indemnity or surrender provisions of any prior lease agreements and
there is no existing basis for any such liability or obligation in the future.

                   2.14     Employee Benefits.

                            (a)  Schedule  2.14 lists (i) all  employee  pension
benefit  plans (as defined in Section 3(2) of the  Employees  Retirement  Income
Security Act of 1974, as amended  ("ERISA")) and employee  welfare benefit plans
(as  defined  in  Section  3(1) of ERISA)  covering  active,  former or  retired
employees of NVC that NVC maintains,  is a  contributing  employer to, or has in
the past  maintained or  contributed  to, (ii) all bonus,  stock  option,  stock
purchase, incentive, deferred compensation,  supplemental retirement,  severance
and other similar  employee  benefit  plans,  and (iii) all unexpired  severance
agreements,  written or  otherwise,  for the  benefit  of, or  relating  to, any
current  or former  employee  of NVC or any trade or  business  (whether  or not
incorporated) which is a member or which is under common control with NVC within
the meaning of Section 414 of the Code (together, the "NVC Employee Plans").

                            (b) With respect to each NVC Employee  Plan, NVC has
made  available to NPI a true and correct copy of (i) such NVC Employee Plan and
(ii) each trust agreement and group annuity  contract,  if any, relating to such
NVC Employee Plan.

                            (c)  With  respect  to  the  NVC   Employee   Plans,
individually and in the aggregate, no event has occurred, and to the best of the
Indemnifying   Sellers'   knowledge,   there  exists  no  condition  or  set  of
circumstances  in  connection  with which NVC could be  subject to any  material
liability. Each NVC Employee Plan, whether formal or informal, maintained by NVC
is in compliance with all applicable requirements of ERISA.

                            (d) NVC is not a party  to any (i)  oral or  written
agreement  with any officer or other key  employee of NVC, the benefits of which
are  contingent,  or the  terms  of  which  are  materially  altered,  upon  the
occurrence of a transaction  involving  NVC of the nature  contemplated  by this
Agreement,  (ii)  agreement  with  any  officer  of NVC  providing  any  term of
<PAGE>

employment or compensation  guarantee  extending from the date hereof or for the
payment of compensation in excess of One Hundred Thousand Dollars ($100,000) per
annum,  or (iii)  agreement or plan,  including  any stock  option  plan,  stock
appreciation  right plan,  restricted  stock plan or stock purchase plan, any of
the benefits of which will be increased, or the vesting of the benefits of which
will be accelerated,  by the occurrence of any of the transactions  contemplated
by  this  Agreement  or the  value  of any of the  benefits  of  which  will  be
calculated  on  the  basis  of  any of the  transactions  contemplated  by  this
Agreement.

                   2.15  Compliance  with Laws. NVC has complied in all material
respects with, is not in material violation of, and has not received any notices
of violation with respect to, any statute,  law or regulation  applicable to the
ownership  or operation of NVC's  business  which would have a Material  Adverse
Effect  on NVC or  materially  affect  the  ability  of  NVC or the  Sellers  to
consummate the  transactions  contemplated  by this Agreement in accordance with
its terms. Neither NVC nor, to the Indemnifying  Sellers' knowledge,  any of its
employees  has directly or indirectly  paid or delivered any fee,  commission or
other sum of money or item of property,  however  characterized,  to any finder,
agent,  government  official  or other  party in the United  States or any other
country, that was or is in violation of any federal,  state, or local statute or
law or of any statute or law of any other country having jurisdiction.

                   2.16     Employee Matters.

                            (a) Schedule  2.16 lists the names and titles of all
Employees and  Consultants  of NVC  (collectively  the  "Employees"  and each an
"Employee"),  together  with the  amount of their  current  compensation,  their
service  date,  the number of years each has been  employed by NVC,  all sick or
vacation  benefits  accrued  or  payable,   all  bonuses,   profit  sharing,  or
commissions  accrued or  payable,  any  special  compensatory  or  reimbursement
arrangements,  comp  time or other  arrangements  with  such  Employees  and any
agreements between such Employee and NVC ("NVC Employment Agreements").

                            (b) With  respect to the  Employees,  NVC (i) is and
has  been in  compliance  in all  material  respects  with all  applicable  laws
respecting employment and employment practices,  consulting practices, terms and
conditions of employment and consulting,  and wages and hours, (ii) has made all
contributions  required to be made under any  unemployment or disability laws or
regulations and has accrued the amount of any such contribution required for any
period prior to the Closing Date which is not yet due and payable,  and (iii) is
not engaged in any unfair labor practice and is not in arrears in the payment of
wages or taxes with respect to the Employees. No Employee has any claims against
NVC  (whether  under any law, any NVC  Employment  Agreement  or  otherwise)  on
account of or for (i)  overtime  pay,  other than  overtime  pay for the current
payroll  period,  (ii)  wages or salary for any  period  other than the  current
payroll, including any bonuses, profit sharing,  commissions,  benefits or other
compensation  payable or accrued with respect to the period prior to the Closing
Date,  (iii)  vacation,  time off or pay in lieu of vacation or time off,  other
than that earned in respect of the current fiscal year, or (iv) any violation of
any Law or Decree  relating to minimum wages or maximum  hours of work.  NVC has
not received notice from any Employee to the effect that 



<PAGE>
such Employee  presently  plans to terminate his or her  relationship  with NVC.
Adequate  reserves  reflecting  all  accrued  compensations  (including  accrued
vacation,  sick pay, bonuses, profit sharing commissions or other compensation),
severance  pay or other  benefits  payable  to any  Employee  by  reason  of any
voluntary or involuntary termination of such Employee prior to or on the Closing
Date (i) through March 31, 1997 are set forth in the Financial  Statements,  and
(ii) since March 31, 1997 are set forth in Schedule 2.16(b).

                            (c) NVC is not bound by or  subject  to (and none of
the assets or  properties  of NVC are bound by or subject to) any Contract  with
any  labor  union  or  similar  organization,  and no  labor  union  or  similar
organization  has  requested  or,  to  the  best  of the  Indemnifying  Sellers'
knowledge,  has  made a  formal  attempt  to  represent  any  of the  employees,
representatives or agents employed in connection with the business of NVC. There
is no strike or other labor dispute involving NVC pending, or to the best of the
Indemnifying Sellers' knowledge,  threatened, that could have a Material Adverse
Effect,  nor is NVC aware of any labor  organization  activity involving the NVC
Employees.

                   2.17 Litigation. There is no action, suit, proceeding, claim,
arbitration or investigation pending before any agency, court or tribunal, or to
the best of the Indemnifying Sellers' knowledge,  threatened, against NVC or any
of its properties or officers or directors (in their capacities as such).  There
is no judgment,  decree or order against NVC or, to the best of the Indemnifying
Sellers'  knowledge,  any of its  directors or officers (in their  capacities as
such)  that  could  prevent,  enjoin  or  materially  alter or delay  any of the
transactions  contemplated  by this  Agreement,  or  that  could  reasonably  be
expected to have a Material Adverse Effect on NVC.

                   2.18  Restrictions  on  Business  Activities.   There  is  no
agreement,  judgment,  injunction, order or decree binding upon NVC which has or
could  reasonably  be expected to have the effect of  prohibiting  or materially
impairing any current  business  practice of NVC, any acquisition of property by
NVC, or the conduct of business by NVC as currently conducted.

                   2.19  Governmental  Authorization.  Except  as set  forth  in
Schedule  2.19, NVC has obtained each  governmental  consent,  license,  permit,
grant or other  authorization of a Governmental  Entity that is required for the
operation of the business of NVC as currently conducted (collectively,  the "NVC
Authorizations"), and all such NVC Authorizations are in full force and effect.

                   2.20 Insurance. Schedule 2.20 contains a list and description
of all such  policies.  There is no  material  claim  pending  under any of such
policies as to which  coverage  has been  questioned,  denied or disputed by the
underwriters  of such  policies.  All  premiums  due and payable  under all such
policies have been paid,  and NVC is are otherwise in compliance  with the terms
of such  policies.  NVC has no knowledge of any  threatened  termination  of, or
material premium increase with respect to, any of such policies.

                   2.21 No Brokers. Except as set forth in Schedule 2.21, NVC is
not obligated for the payment of fees or expenses of any broker, finder or other
person in connection with the

<PAGE>

origination,  negotiation or execution of the NVC  Transaction  Documents or any
transaction contemplated hereby or thereby. NVC agrees to indemnify and hold NPI
and its affiliates harmless from and against any and all claims,  liabilities or
obligations with respect to any other fees,  commissions or expenses asserted by
any person on the basis of any act or statement alleged to have been made by NVC
or its Affiliate.

                   2.22  Certain  Documents.  NVC has  furnished  to NPI, or its
representatives,  for its  examination:  (i)  NVC's  minute  book  and  (ii) all
permits,  orders, and consents issued by any Governmental Entity with respect to
NVC. NVC has delivered or made available to NPI true and complete  copies of all
documents  which are  referred to in this  Article III or in the NVC  Disclosure
Schedule.

                   2.23 No Other  Agreements for the  Acquisition of NVC. Except
as set  forth  herein,  NVC  does not have any  legal  obligation,  absolute  or
contingent,  to any person or firm to sell any capital stock of NVC or to effect
any merger,  consolidation  or other  reorganization,  or  disposition of all or
substantially all of the assets, of NVC.

                   2.24 No  Misrepresentation.  No representation or warranty by
the  Sellers  in this  Agreement,  and no  statement,  certificate  or  schedule
furnished  or to be  furnished  by or on behalf of the Sellers  pursuant to this
Agreement, when taken together, contains any untrue statement of a material fact
or omits to state a material fact required to be stated  therein or necessary in
order to make such statements,  in light of the  circumstances  under which they
were made, not misleading.


                                   ARTICLE III

                    REPRESENTATIONS AND WARRANTIES OF SELLERS

         Each Seller severally and not jointly,  represents and warrants to NPI,
as follows:

                   3.1 Ownership. Each Seller is the lawful owner and registered
holder of the number of NVC Shares  listed  opposite  the name of such Seller in
Exhibit A, free and clear of all liens, encumbrances, restrictions and claims of
every kind. Each Seller has full and legal right, power,  authority and capacity
to sell, assign,  transfer and convey the NVC Shares so owned by him pursuant to
this  Agreement  and the  delivery  to NPI of such NVC Shares held by the Seller
pursuant to the  provisions of this  Agreement  will transfer to NPI valid title
thereto, free and clear of all liens,  encumbrances,  restrictions and claims of
every kind.

                   3.2      Authority.

                            (a) Each  Seller  has full and legal  right,  power,
authority and capacity to execute and deliver the NVC Transaction  Documents and
to carry out the sale of the NVC Shares  held or to be held by him and carry out
the other  transactions  contemplated  hereby


<PAGE>

without the need to obtain the consent or approval of any other party. Following
the  execution of the NVC  Transaction  Documents,  each of the NVC  Transaction
Documents  will  constitute  the legal,  valid and binding  obligations  of each
Seller who is a party  thereto,  enforceable  against such Seller in  accordance
with its terms,  except as such  enforceability  may be  limited by  bankruptcy,
insolvency, moratorium or other similar laws affecting or relating to creditors'
rights  generally,  and  general  principles  of equity,  regardless  of whether
asserted in a proceeding at law or in equity.

                            (b) The execution and delivery by each Seller of the
NVC  Transaction  Documents do not,  and the  consummation  of the  transactions
contemplated  hereby  will not (i)  result in any  violation  or  breach  of, or
constitute  (with or without  notice or lapse of time, or both) a default under,
or give rise to a right of  termination,  cancellation  or  acceleration  of any
material obligation or loss of any benefit under any note, mortgage,  indenture,
lease,  contract or other agreement or obligation to which any Seller is a party
or by which any Seller or any of their  respective  properties  or assets may be
bound,  or (ii)  conflict  with or violate  any permit,  concession,  franchise,
license,  judgment,  order, decree, statute, law, ordinance,  rule or regulation
applicable to any Seller or any of their respective properties or assets, except
in the case of (ii) for any such  conflicts  or  violations  which  would not be
reasonably  likely to have a Material  Adverse  Effect on NVC or materially  and
adversely  affect the  ability of such  Seller to  consummate  the  transactions
contemplated by this Agreement in accordance with its terms.

                            (c) No consent, approval, order or authorization of,
or registration, declaration or filing with, any Governmental Entity (as defined
in Section 9.2) is required by or with respect to any Seller in connection  with
the  execution  and  delivery  of this  Agreement  or the other NVC  Transaction
Documents  or  the  consummation  of the  transactions  contemplated  hereby  or
thereby.

                   3.3 No  Misrepresentation.  No  representation or warranty by
the  Sellers  in this  Agreement,  and no  statement,  certificate  or  schedule
furnished  or to be  furnished  by or on behalf of the Sellers  pursuant to this
Agreement, when taken together, contains any untrue statement of a material fact
or omits to state a material fact required to be stated  therein or necessary in
order to make such statements,  in light of the  circumstances  under which they
were made, not misleading.


                                   ARTICLE IV

                      REPRESENTATIONS AND WARRANTIES OF NPI

         Except as set forth in the disclosure  schedule delivered by NPI to the
Sellers on or before the date of this  Agreement  and attached  hereto (the "NPI
Disclosure  Schedule"),  or in the NPI SEC  Reports  (as  defined  herein),  NPI
represents and warrants to the Sellers as follows:
<PAGE>

                   4.1  Organization.  NPI,  is a  corporation  duly  organized,
validly  existing  and in good  standing  under  the laws of  Delaware,  has all
requisite corporate power to own, lease and operate its property and to carry on
its business as now being conducted and as proposed to be conducted, and is duly
qualified to do business  and is in good  standing as a foreign  corporation  in
each  jurisdiction in which the failure to be so qualified would have a Material
Adverse Effect on NPI.

                   4.2    Authority; No Conflict; Required Filings and Consents.

                            (a)  NPI  has  all  requisite  corporate  power  and
authority  to enter  into this  Agreement  and the Escrow  Agreement,  the Offer
Letters and the  Noncompetition  Agreement  (collectively,  the "NPI Transaction
Documents") and to consummate the transactions  contemplated hereby and thereby.
The  execution  and  delivery of this  Agreement  and the other NPI  Transaction
Documents  and the  consummation  of the  transactions  contemplated  hereby and
thereby have been duly authorized by all necessary  corporate action on the part
of NPI.  This  Agreement  and the NPI  Transaction  Documents  to which they are
parties have been duly  executed and delivered by NPI and  constitute  the valid
and binding  obligations  of NPI,  enforceable  in accordance  with their terms,
except as such  enforceability  may be limited by (i) bankruptcy  laws and other
similar laws affecting  creditors' rights generally and (ii) general  principles
of equity, regardless of whether asserted in a proceeding in equity or at law.

                            (b) The execution and delivery of this  Agreement by
NPI and the other NPI Transaction  Documents do not, and the consummation of the
transactions  contemplated  hereby or thereby will not, (i)  conflict  with,  or
result in any  violation  or  breach  of any  provision  of the  Certificate  of
Incorporation  or Bylaws of NPI (ii)  result in any  violation  or breach of, or
constitute (with or without notice or lapse of time, or both) a default (or give
rise to a right of  termination,  cancellation or acceleration of any obligation
or  loss  of  any  material  benefit)  under  any of the  terms,  conditions  or
provisions of any note,  bond,  mortgage,  indenture,  lease,  contract or other
agreement,  instrument  or obligation to which NPI is a party or by which either
of them or any of their  properties  or assets may be bound,  or (iii)  conflict
with or violate any permit,  concession,  franchise,  license,  judgment, order,
decree, statute, law, ordinance,  rule or regulation applicable to NPI or any of
its  properties  or  assets,  except  in the case of (ii) and (iii) for any such
conflicts, violations,  defaults,  terminations,  cancellations or accelerations
which would not be reasonably likely to have a Material Adverse Effect on NPI or
materially   and  adversely   affect  the  ability  of  NPI  to  consummate  the
transactions contemplated by this Agreement in accordance with its terms.

                            (c) No consent, approval, order or authorization of,
or registration, declaration or filing with, any Governmental Entity is required
by or with respect to NPI or in  connection  with the  execution and delivery of
this Agreement or the  consummation  of the  transactions  contemplated  hereby,
except for (i) such consents, approvals, orders, authorizations,  registrations,
declarations and filings as may be required under  applicable  federal and state
securities  laws  and the laws of any  foreign  country  and  (iii)  such  other
consents,  authorizations,


<PAGE>

filings,  approvals and registrations  which, if not obtained or made, would not
be reasonably likely to have a Material Adverse Effect on NPI.

                   4.3 SEC  Filings.  NPI  has  filed  all  forms,  reports  and
documents  required  to be  filed  by NPI with the SEC  since  January  1,  1996
(collectively,  the  "NPI  SEC  Reports")  and has  made  such  NPI SEC  Reports
available to the Sellers. The NPI SEC Reports (i) at the time filed, complied in
all material respects with the applicable requirements of the Securities Act and
the  Exchange  Act,  as the case may be,  and (ii) did not at the time they were
filed  (or if  amended  or  superseded  by a  filing  prior  to the date of this
Agreement,  then on the date of such filing)  contain any untrue  statement of a
material fact or omit to state a material fact required to be stated in such NPI
SEC  Reports  or  necessary  in  order to make  the  statements  in such NPI SEC
Reports,  in the light of the  circumstances  under  which they were  made,  not
misleading.

                   4.4 No Brokers.  NPI is not obligated for the payment of fees
or  expenses  of any  broker,  finder  or other  person in  connection  with the
origination,  negotiation or execution of the NPI  Transaction  Documents or any
transaction  contemplated  hereby or thereby.  NPI agrees to indemnify  and hold
Sellers  and its  affiliates  harmless  from  and  against  any and all  claims,
liabilities  or  obligations  with  respect to any other  fees,  commissions  or
expenses  asserted by any person on the basis of any act or statement alleged to
have been made by NPI or its Affiliate.

                   4.5 No  Misrepresentation.  No  representation or warranty by
NPI in this Agreement, and no statement, certificate or schedule furnished or to
be  furnished  by or on behalf of NPI  pursuant  to this  Agreement,  when taken
together,  contains any untrue  statement of a material fact or omits to state a
material fact  required to be stated  therein or necessary in order to make such
statements,  in light of the  circumstances  under  which  they were  made,  not
misleading.


                                    ARTICLE V
                              ADDITIONAL AGREEMENTS

                   5.1 Taxes. After the Closing, solely in the event NPI submits
an Officer's  Certificate  claiming  Damages  (each as defined in Article  VIII)
relating to Taxes,  NPI shall make available to the Indemnifying  Sellers,  upon
reasonable request, all Tax information,  records or other documents relating to
such claim and shall preserve all such  information,  records or other documents
until such claim is resolved.

                   5.2 Public Disclosure.  Except with the prior written consent
of NPI,  neither  NVC nor the  Sellers  shall  issue any press  release or other
public  statement with respect to the Purchase or this Agreement.  NPI shall not
issue any press  release  or other  public  statement  regarding  any  Seller in
connection with the Purchase or this Agreement without the prior written consent
of such Seller.
<PAGE>

                   5.3 Additional Agreements; Reasonable Efforts. Subject to the
terms and  conditions of this  Agreement,  each of the parties agrees to use all
reasonable efforts to take, or cause to be taken, all action and to do, or cause
to be done, all things necessary,  proper or advisable under applicable laws and
regulations to consummate and make effective the  transactions  contemplated  by
this Agreement,  including cooperating fully with the other party,  including by
provision  of  information.  In case at any time after the  Closing  any further
action is necessary  or  desirable to carry out the purposes of this  Agreement,
the proper  officers  and  directors  of NPI and each Seller shall take all such
necessary action.

                   5.4  Expenses.  The  parties  shall each pay their own legal,
accounting and financial advisory fees and other out-of-pocket  expenses related
to the  negotiation,  preparation  and  carrying out of this  Agreement  and the
transactions  herein  contemplated.  In the event the  Purchase is  consummated,
legal fees and expenses of Parker,  Chapin,  Flattau & Klimpl,  LLP, incurred by
NVC and the Sellers relating to the negotiation, preparation and carrying out of
this  Agreement and the  transactions  herein  contemplated,  up to a maximum of
$35,000,  shall be deemed to be obligations  payable by NPI at the Closing.  All
additional  fees and expenses  shall be deemed to be expenses of the Sellers and
shall be borne solely by the  Sellers,  and shall not be  obligations  of NVC or
NPI.

                   5.5 Employee  Arrangements.  All NVC employees who become NPI
employees  after the Purchase  shall be eligible for the same  employee  benefit
plans,  on the same terms,  for which  similarly  positioned  NPI  employees are
eligible  according to the terms of the employee benefit plans of NPI. Except as
set forth in this  Section 5.5, the terms of  employment  of such NVC  employees
shall be determined by agreement of NPI and each such employee,  as memorialized
in offer  letters  between  NPI and each such  employee  as set forth in Section
6.2(e).

                   5.6 Foregone  Dividends.  As consideration for NPI's advances
of funds to NVC under that  certain  Promissory  Note of NVC dated April 7, 1997
which is attached  hereto as Exhibit C, each Seller who held Preferred  Stock of
NVC as of April 1, 1997, or at any time thereafter, agrees that all dividends on
such Preferred  Stock to which such Seller would  otherwise be entitled shall be
waived by such Seller for the period from April 1, 1997 until the Closing.

                   5.7  Registration.   NPI  shall  file  and  cause  to  become
effective a  registration  statement  within 90 days of the Closing Date,  which
registration  statement shall cover the shares of NPI Common Stock issuable upon
exercise  of the  options  to be issued  concurrently  with the  Closing  of the
Purchase to former NVC employees who accept employment with NPI.


<PAGE>

                                   ARTICLE VI
                              CONDITIONS TO CLOSING

          6.1 Conditions to Each Party's Obligation to Effect the Purchase.  The
respective  obligations  of each party to this  Agreement to effect the Purchase
shall be subject to the satisfaction  prior to the Closing Date of the following
conditions:

                            (a)  All   authorizations,   consents,   orders   or
approvals of, or declarations or filings with, or expirations of waiting periods
imposed by, any Governmental  Entity shall have been obtained or filed, or shall
have occurred as the case may be.

                            (b) No temporary  restraining order,  preliminary or
permanent   injunction   or  other  order  issued  by  any  court  of  competent
jurisdiction  or other legal or regulatory  restraint or prohibition  preventing
the  consummation  of the Purchase or limiting or  restricting  NPI's conduct or
operation  of the  business  of NPI or NVC after the  Purchase  shall  have been
issued,  nor  shall  any  proceeding  brought  by an  administrative  agency  or
commission  or  other  Governmental  Entity,  seeking  any of the  foregoing  be
pending; nor shall there be any action taken, or any statute,  rule,  regulation
or order enacted,  entered,  enforced or deemed applicable to the Purchase which
makes the consummation of the Purchase illegal.

                   6.2   Additional   Conditions  to  Obligations  of  NPI.  The
obligations  of NPI to effect the  Purchase are subject to the  satisfaction  of
each of the  following  additional  conditions,  any of which  may be  waived in
writing exclusively by NPI:

                            (a)  The   representations  and  warranties  of  the
Indemnifying  Sellers and the Sellers set forth in this Agreement  shall be true
and  correct in all  material  respects as of the  Closing  Date  (except to the
extent such representations and warranties speak as of an earlier date).

                            (b) NVC and each Seller shall have  performed in all
material  respects  all  obligations  required to be  performed by it under this
Agreement at or prior to the Closing Date.

                            (c) The Sellers shall have delivered to NPI endorsed
stock certificates or assignments separate from certificate  representing all of
the outstanding capital stock of NVC.

                            (d) Each  employee of NVC shall have  resigned as an
employee,  officer and director,  as applicable,  of NVC and accepted employment
with NPI pursuant to NPI's  standard form of offer letter (the "Offer  Letters")
in substantially the form attached hereto as Exhibit D.
<PAGE>

                            (e) NPI shall have received Proprietary  Information
Agreements  signed by each employee of NVC on the Closing Date in  substantially
the form  attached  hereto as Exhibit E, and each such  proprietary  information
agreement shall be in full force and effect.

                            (f) Each employee of NVC shall have  received  NPI's
Policy  on  Securities  Trades  by  NPI  Personnel  and  executed  a  compliance
certification regarding such policy, each in the form attached hereto as Exhibit
F.

                            (g) Each of the  employees  listed on Exhibit G (the
"Selected  Employees")  shall have entered into  non-competition  agreements  in
substantially the form attached hereto as Exhibit H.

                            (h) NPI shall have  received a written  opinion from
Parker,  Chapin,  Flattau & Klimpl,  counsel to NVC, in  substantially  the form
attached hereto as Exhibit I.

                            (i) NPI shall have  received a written  opinion from
counsel for each of the Indemnifying Sellers, in substantially the form attached
hereto as Exhibit J.

                            (j) Any oral or written contract between NVC and any
of its employees shall have been terminated.

                            (k)   Any   outstanding   subscriptions,    options,
warrants,  convertible  notes,  puts,  calls,  rights  or other  commitments  or
agreements  of any  character  to  which  NVC is a party or by which it is bound
obligating  NVC to issue,  deliver,  sell,  repurchase  or  redeem,  any  equity
securities of NVC or obligating NVC to extend to grant,  extend,  accelerate the
vesting  or  change  the price of,  or  otherwise  amend or enter  into any such
option,  warrant, call, right, commitment or agreement shall have been canceled,
exercised or converted into NVC Common Stock prior to or  concurrently  with the
Closing.

                            (l) NPI,  the  Escrow  Agent (as  defined in Article
VIII),  NVC and the NVC Agents (as defined in Article  VIII) shall have  entered
into an escrow agreement (the "Escrow  Agreement") in a form consistent with the
provisions of Article VIII.

                   6.3 Additional  Conditions to Obligations of the Sellers. The
obligation of the Sellers to effect the Purchase is subject to the  satisfaction
of each of the following additional  conditions,  any of which may be waived, in
writing, exclusively by the NVC Agents.

                            (a) The  representations  and  warranties of NPI set
forth in this Agreement shall be true and correct in all material respects as of
the  Closing  Date  (except to the extent  such  representations  speak as of an
earlier date).

                            (b)  NPI  shall  have   performed  in  all  material
respects all  obligations  required to be performed by them under this Agreement
at or prior to the Closing Date.
<PAGE>

                            (c) NPI,  the Escrow  Agent,  NVC and the NVC Agents
shall have entered into the "Escrow Agreement".

                            (d)  The  Sellers  shall  have  received  a  written
opinion from Gray Cary Ware & Freidenrich,  counsel to NPI, in substantially the
form attached hereto as Exhibit K.

                            (e) NPI shall  have paid  NVC's  obligations  to the
parties and in the amounts set forth in Schedule 1.2(b).

                            (f) All Offer  Letters  shall have been executed and
delivered by the parties thereto.

                            (g) NPI shall have granted options to certain of the
Sellers pursuant to the Offer Letters and the Noncompetition Agreements.


                                   ARTICLE VII

                                    AMENDMENT

                  7.1  Amendment.  This  Agreement may be amended by the parties
hereto,  by action taken or  authorized by the Board of Directors of NPI, by the
NVC Agents and by Sellers  who held a majority  of the NVC Shares at the time of
the Closing; provided, that the status of a Seller may not be changed to that of
an Indemnifying Seller, nor shall the obligations of a Seller be expanded or the
rights of a Seller be reduced from what is provided  herein  without the consent
of such Seller.  This  Agreement  may not be amended  except by an instrument in
writing signed on behalf of each of the above parties.


                                  ARTICLE VIII

                         SURVIVAL, INDEMNITY AND ESCROW

                   8.1 Survival of  Representations,  Warranties  and Covenants.
Notwithstanding  any  investigation  conducted before or after the Closing Date,
and  notwithstanding  any actual or implied  knowledge or notice of any facts or
circumstances which NPI may have as a result of such investigation or otherwise,
NPI will be entitled to rely upon the other parties' representations, warranties
and covenants set forth in this  Agreement.  The  obligations of the Sellers and
NPI with respect to their respective representations, warranties, agreements and
covenants  will  survive the Closing and continue in full force and effect until
April ___, 1998 (the "Escrow Termination Date").

                   8.2  Indemnity.  From and after the Closing Date, and subject
to the  provisions  of Section 8.1, NPI (on and after the Closing Date) shall be
indemnified  and  held  harmless  by
<PAGE>

those Sellers  listed on Exhibit A as  contributing  part of the Escrow  Payment
(the "Indemnifying Sellers"), jointly and severally,  against, and reimbursed on
demand for, any liability,  damage, loss, obligation,  demand,  judgment,  fine,
penalty, cost or expense (including reasonable attorneys' fees and expenses, and
the costs of  investigation  incurred  in  defending  against or  settling  such
liability,  damage, loss, cost or expense or claim therefor and any amounts paid
in settlement  thereof) imposed on or reasonably  incurred by NPI because of any
material  misrepresentation or breach of any material representation,  warranty,
agreement or covenant (net of any tax benefits to NPI at NPI's statutory federal
rate if deemed a tax  deductible  item),  (all of which  shall be referred to as
"Identifiable  Claims")  on  the  part  of any of  the  Sellers,  including  the
Indemnifying  Sellers,  under  this  Agreement  (collectively,  the  "Damages").
"Damages"  as used herein is not limited to matters  asserted by third  parties,
but includes  Damages incurred or sustained by NPI in the absence of claims by a
third party.

                   8.3 Notice of Claims. NPI shall give notice to the NVC Agents
(as defined in Section 8.12 below) promptly  following NPI becoming aware of any
claim giving rise to Damages. Such notice shall specify the nature and amount of
the claim asserted.  Notwithstanding the foregoing,  a failure by NPI to provide
such notice shall not limit the  indemnity  provided by this Article VIII except
to the extent the failure to provide such notice results in a material  increase
of the Damages to be paid by the Indemnifying  Sellers or materially  prejudices
the defense of the NVC asserted.

                   8.4 Escrow Fund. As sole security (except for fraudulent acts
as set forth in Section  8.6) for the  indemnity  provided  for in  Section  8.2
hereof, Four Hundred Forty One Thousand Three Hundred  Twenty-Seven  Dollars and
Sixteen Cents  ($441,327.16)  (the "Escrow Amount") of the cash consideration to
be paid to the Indemnifying  Sellers,  as identified in Exhibit A, shall without
any act of such  holders,  be  deposited  by NPI in an interest  bearing  escrow
account  with  Millennium  Bank as Escrow  Agent (the  "Escrow  Agent"),  at the
Closing,  such deposit to  constitute  an escrow fund (the "Escrow  Fund") to be
governed  by the terms set forth in this  Agreement  and  pursuant to the escrow
agreement to be signed and  delivered  at the Closing (the "Escrow  Agreement").
All  interest  accrued on the Escrow Fund that remains in the Escrow Fund on the
Escrow  Termination Date and is not subject to an Identifiable Claim for Damages
on such date shall be distributed to the Indemnifying Sellers in accordance with
Section 8.10. The Escrow Fund shall not be subject to claims of the creditors of
NPI and shall constitute the property of the Indemnifying Sellers subject to the
terms and  conditions  set forth  herein.  The Escrow Amount to be placed in the
Escrow  Fund shall be  allocated  among the  Indemnifying  Sellers on a pro-rata
basis in  accordance  with the  number of NVC Shares  held by such  Indemnifying
Seller  immediately  prior to the  Closing,  as set  forth in  Exhibit  A.  Upon
compliance  with the terms hereof and subject to the provisions of Section 8.13,
NPI shall be entitled to obtain  indemnity from the Escrow Fund for all Damages.
NPI shall compensate the Escrow Agent for its services in maintaining the Escrow
Fund. No part of the Escrow Fund shall be used to pay the Escrow Agent.
<PAGE>

                   8.5 Escrow Period.  The Escrow Fund shall remain in existence
during the period of time (the "Escrow Period") between the Closing Date and the
Escrow Termination Date.

                   8.6 Limitation on Sellers'  Liability.  Except in the case of
fraud as set forth herein, in no event shall (a) any NVC stockholder, other than
an  Indemnifying  Seller,  be liable  under this  Agreement  for any amount with
respect to any breach of representations, warranties, covenants or agreements of
the Sellers contained herein or in any other NVC Transaction  Document,  and (b)
any Indemnifying Seller be liable under this Agreement, the Waiver and Agreement
or the Escrow  Agreement for any amount in excess of the amount contained in the
Escrow  Fund.  Notwithstanding  the other  provisions  of this  Section 8.6, the
parties agree that nothing  herein  limits any potential  remedies and claims of
NPI  arising  under  applicable  state  and  federal  laws with  respect  to any
fraudulent  act committed by NVC, any Seller or any  stockholder,  optionholder,
director,  officer, employee or agent of NVC, except that no Seller shall in any
event be liable  under this  Agreement  for any amount in excess of its pro rata
share of the aggregate  Purchase Price.  NPI shall not be entitled to assert any
claim for breach of representations,  warranties, covenants or agreements or any
claim for  indemnification  pursuant to Section 8.2 (collectively "NPI Claims"),
whether or not based on fraud as provided  above,  unless and until such time as
all NPI Claims exceed  Twenty-Five  Thousand Dollars ($25,000) (the "Basket") in
the aggregate,  at which time NPI shall be entitled to seek  indemnification for
the full amount of all such NPI Claims  (excluding the $25,000  constituting the
Basket).

                   8.7 Claims Upon Escrow Fund. Upon receipt by the Escrow Agent
on or before the Escrow  Termination Date of a certificate signed by any officer
of NPI (an "Officer's Certificate"):

                            (a) stating that NPI has paid,  incurred or properly
accrued or knows of facts  giving rise to a reasonable  likelihood  that it will
have to pay or accrue  Damages in an  aggregate  stated  amount with  respect to
which  NPI is  entitled  to  payment  from  the  Escrow  Fund  pursuant  to this
Agreement, and

                            (b)  specifying in reasonable  detail the individual
items of Damages  included in the amount so stated,  the date each such item was
paid, incurred or properly accrued, or the basis for such anticipated liability,
and the specific nature of the misrepresentation or breach to which such item is
related,  the Escrow Agent shall,  subject to the  provisions  of Section 8.8 of
this  Agreement,  deliver to NPI a check  payable  from the  Escrow  Fund in the
amount necessary to indemnify NPI of the Damages claimed.

         In the event NPI is paid from the Escrow  Fund but in fact  Damages are
not paid,  incurred  or accrued by NPI,  NPI shall  reimburse  the  Indemnifying
Sellers (on a pro-rata basis in accordance with the number of NVC Shares held by
each  Indemnifying  Seller  immediately  prior to the  Closing,  as set forth in
Exhibit A) for any amount of such Damages not paid, incurred or accrued together
with accrued interest.
<PAGE>

                   8.8  Objections  to Claims.  At the time of  delivery  of any
Officer's  Certificate to the Escrow Agent, a duplicate copy of such certificate
shall be  delivered  to the NVC  Agents.  The Escrow  Agent  shall not issue any
checks to NPI  pursuant  to  Section  8.7 unless  the  Escrow  Agent  shall have
received written authorization from the NVC Agents to make such payment. In case
the NVC Agents shall not have  authorized the indemnity of NPI in respect of any
claim or claims made in any Officer's  Certificate within thirty (30) days after
delivery of such Officer's  Certificate,  the NVC Agents shall be deemed to have
objected to all of the claims set forth therein as to which payment has not been
authorized in full.

                   8.9      Resolution of Conflicts

                            (a) Memorandum of Agreement.  The NVC Agents and NPI
shall  thereafter  attempt  in good  faith  to  agree  upon  the  rights  of the
respective  parties with respect to each claim to which there is an objection or
deemed objection for thirty (30) days after such objection or deemed  objection.
If the NVC Agents  and NPI  should so agree,  a  memorandum  setting  forth such
agreement shall be prepared and signed by both parties and shall be furnished to
the  Escrow  Agent.  The  Escrow  Agent  shall be  entitled  to rely on any such
memorandum and distribute cash from the Escrow Fund in accordance with the terms
thereof.

                            (b) Arbitration. If no such agreement can be reached
within thirty (30) days after  objection or deemed  objection by the NVC Agents,
either NPI or the NVC Agents may  demand  arbitration  of the matter  unless the
amount of the  damage  or loss is at issue in  pending  litigation  with a third
party,  in which event  arbitration  shall not be commenced until such amount is
ascertained or both parties agree to  arbitration;  and in either such event the
claim or claims  (whether for legal or equitable  relief)  shall be submitted to
binding and  non-appealable  arbitration  before the JAMS Endispute ("JAMS") and
pursuant to the JAMS rules currently in effect and as hereinafter modified.  The
NVC Agents and NPI shall each choose an arbitrator  who will then decide jointly
upon a  third  party  arbitrator  who  shall  be  employed  as  arbitrator  (the
"Arbitrator") to settle the disagreements as soon as is reasonably  practicable.
Any such arbitration shall be held in a location either in California,  New York
or Delaware,  as  designated  by the  defendant in any dispute,  and all parties
shall use their best efforts to resolve such arbitration  within 120 days of the
date the claim was submitted.  The Arbitrator so selected must enforce the terms
of this Agreement and must rule in accordance with Delaware law. The decision of
the  Arbitrator  so selected as to the  validity and amount of any claim in such
Officer's  Certificate  shall be binding and conclusive upon the parties to this
Agreement,  and, notwithstanding anything in Section 8.8, the Escrow Agent shall
be  entitled  to act in  accordance  with  such  decision  and make or  withhold
payments  or  distributions  out of the  Escrow  Fund in  accordance  with  such
decision.  Judgment upon any award  rendered by the Arbitrator may be entered in
any court having jurisdiction.

                   8.10 Distribution  Upon Termination of Escrow Period.  Within
15 days following the Escrow Termination Date, the Escrow Agent shall deliver to
the NVC  Agents,  for  transfer  to the  Indemnifying  Sellers,  a check for the
balance of the  Escrow  Fund,  in excess of any amount of such funds  reasonably
sufficient  to satisfy  any  unsatisfied  claims for  Damages  


<PAGE>

specified in any Officer's Certificate previously delivered to the Escrow Agent.
Within 15 days after all such claims have been resolved,  the Escrow Agent shall
deliver to the NVC Agents, for transfer to the Indemnifying Sellers, a check for
all  amounts  remaining  in the Escrow  Fund and not  required  to satisfy  such
claims. Such payment to the Indemnifying  Sellers pursuant to this section shall
be made in proportion to their original contributions to the Escrow Fund.

                   8.11     NVC Agents; Power of Attorney.

                            (a) Robert J. Zecha and Paul Lowell  acting  jointly
shall be appointed and  constitute  the agents and  attorneys-in-fact  (the "NVC
Agents") by each  Indemnifying  Seller,  for and on behalf of such  Indemnifying
Seller: to execute and perform the Escrow Agreement in accordance with its terms
and  conditions;  to give and receive notices and  communications;  to authorize
delivery to NPI of funds from the Escrow Fund in  satisfaction of claims by NPI;
to object to such deliveries; to agree to, negotiate, enter into settlements and
compromises  of, and demand  arbitration  and comply  with  orders of courts and
awards of arbitrators with respect to such claims; to select counsel or counsels
with respect to, control the defense of, and settle,  shareholder litigation and
comply  with  orders of courts and awards of  arbitrators  with  respect to such
claims;  and to take all actions necessary or appropriate in the judgment of the
NVC Agents for the  accomplishment  of the foregoing.  Each NVC Agent may resign
upon thirty (30) days notice to the parties to this  Agreement,  in which case a
new NVC Agent shall be  selected  by a majority in interest of the  Indemnifying
Sellers  prior to the end of such 30 day notice  period.  Except in the event of
such resignation,  an NVC Agent may not be replaced by the Indemnifying  Sellers
absent an act of gross  negligence or willful  misconduct on the part of the NVC
Agent;  in such  event,  a new NVC Agent  shall be  selected  by a  majority  in
interest of the Indemnifying  Sellers  concurrently  with such removal.  No bond
shall be  required  of the NVC  Agents,  and the NVC  Agents  shall  receive  no
compensation  for their  services  except as provided  in the Escrow  Agreement.
Notices or  communications  to or from the NVC Agents shall constitute notice to
or from each of the Indemnifying Sellers.

                            (b) The NVC  Agents  shall not be  liable  for their
service in such capacity to NPI or the Indemnifying  Sellers for any act done or
omitted  hereunder  as NVC Agents while acting in good faith and in the exercise
of reasonable  judgment,  and any act done or omitted  pursuant to the advice of
counsel  shall be evidence of such good faith.  The  Indemnifying  Sellers shall
jointly and severally  indemnify the NVC Agents and hold the NVC Agents harmless
against,  any  loss,  liability  or  expense  that  is  incurred  without  gross
negligence  or bad faith on the part of the NVC Agents and  arising out of or in
connection  with the  acceptance  or  administration  of the NVC Agents'  duties
hereunder. The NVC Agents shall be entitled to direct,  immediately prior to the
termination  of the Escrow  Period,  the Escrow Agent to deliver  funds from the
Escrow Fund to the NVC Agents to satisfy such Indemnifying  Sellers' obligations
pursuant to the preceding sentence; provided, however, that the NVC Agents shall
have such right only to the extent that Escrow  Funds  exceed any amount of such
funds  reasonably  sufficient  to satisfy  any  unsatisfied  claims for  Damages
specified in any Officer's Certificate previously delivered to the Escrow Agent.
<PAGE>

                            (c) All decisions,  acts,  consents and instructions
of the NVC  Agents  must be made  jointly,  and no  decision,  act,  consent  or
instruction by one without the other shall be given any effect.

                   8.12 Actions of the NVC Agents.  A decision,  act, consent or
instruction  of  the  NVC  Agents  shall   constitute  a  decision  of  all  the
Indemnifying  Sellers,  and shall be final,  binding and conclusive upon each of
the  Indemnifying  Sellers,  and the  Escrow  Agent  and NPI may  rely  upon any
decision,  act,  consent or instruction of the NVC Agents as being the decision,
act,  consent or instruction of each and all of the  Indemnifying  Sellers.  The
Escrow Agent and NPI are hereby  relieved  from any  liability to any person for
any  acts  done by them in  accordance  with  such  decision,  act,  consent  or
instruction of the NVC Agents.

                   8.13 Third-Party  Claims. In the event NPI receives a written
third-party  claim which NPI reasonably  believes may result in a demand against
the Escrow Fund, NPI shall promptly  notify the NVC Agents of such claim. If any
proceeding  is commenced,  or if any third party claim,  demand or assessment is
asserted,  in respect of which a claim for  indemnification  is or might be made
against the Escrow Fund and such claim (i) relates to the intellectual  property
of NVC or (ii) is not  quantifiable  in amount or is for an amount  greater than
the amount then remaining in the Escrow Fund, then NPI may contest or defend any
such action,  proceeding,  claim, demand or assessment,  with counsel reasonably
acceptable to the NVC Agents.  NPI shall have the right to settle any such claim
with  the  written  consent  of the  NVC  Agents,  which  consent  shall  not be
unreasonably  withheld;  provided however that NPI shall not admit any liability
with respect  thereto or settle,  compromise,  pay or discharge the same without
the  prior  written  consent  of the NVC  Agents,  which  consent  shall  not be
unreasonably  withheld.  In the event that the NVC Agents have  consented to any
such settlement,  neither the Indemnifying Sellers nor the NVC Agents shall have
any power or  authority to object  under  Section 8.8 or any other  provision of
this Agreement to the amount of any claim by NPI against the Escrow Fund for any
indemnity which is provided for in such settlement.  The above  notwithstanding,
if such claim does not relate to the intellectual  property of NVC and is for an
amount  less than the amount then  remaining  in the Escrow  Fund,  then the NVC
Agents may  contest  or defend any such  action,  proceeding,  claim,  demand or
assessment, with counsel selected by the NVC Agents and reasonably acceptable to
NPI;  provided  however that the NVC Agents shall not admit any  liability  with
respect  thereto or settle,  compromise,  pay or discharge  the same without the
prior written consent of NPI, which consent shall not be unreasonably  withheld.
The NVC Agents or NPI,  whichever is not  controlling the defense of any matter,
shall be entitled, at his or its expense, to participate in such defense.

<PAGE>


                                   ARTICLE IX

                               GENERAL PROVISIONS

                   9.1 Notices. All notices and other  communications  hereunder
shall be in writing  and shall be deemed  given if  delivered  personally  or by
commercial  delivery service,  or mailed by registered or certified mail (return
receipt  requested) or sent via facsimile (with  confirmation of receipt) to the
parties at the  following  addresses  (or at such other  address  for a party as
shall be specified by like notice):

                          (a)      if to NPI, to:

                          Network Peripherals Inc.
                          1371 McCarthy Boulevard
                          Milpitas, CA 95035
                          Attention:   Chief Financial Officer
                          Fax:     (408) 321-9218

                          with a copy to:

                          Gray Cary Ware Freidenrich, A Professional Corporation
                          400 Hamilton Avenue
                          Palo Alto, CA 94301
                          Attention:  Gregory M. Gallo, Esq.
                          Fax:     (415) 327-3699

                          (b)      if to the NVC Agents, to:

                          Robert J. Zecha
                          26 Terrapin Street
                          Mastic, NY  19950

                          Paul Lowell
                          123 Hofstra University
                          Business Development Center, West Wing
                          Suite 225
                          Hempstead, NY  11550-1090
                          Fax:     (516) 463-3667
<PAGE>

                          with copies to:

                          Parker Chapin Flattau & Klimpl, LLP
                          1211 Avenue Of The Americas
                          New York, NY  10036
                          Attention:  James Alterbaum, Esq.
                          Fax:  (212) 704-6288

                          Meltzer, Lippe, Goldstein, Wolf & Schlissel, P.C.
                          190 Willis Avenue
                          Mineola, NY  11501
                          Attention:  David I. Schaffer, Esq.
                          Fax:  (516) 747-0653

                          (c)      If to the Sellers to:

                          The address of such Seller as set forth on Exhibit A.

                          with a copy to:

                          Meltzer, Lippe, Goldstein, Wolf & Schlissel, P.C.
                          The Chancery
                          190 Willis Avenue
                          Mineola, NY 11501
                          Attention:  David I. Schaffer
                          Fax:  (516) 747-0653

                   9.2  Interpretation.   When  a  reference  is  made  in  this
Agreement to a section,  such reference  shall be to a Section of this Agreement
unless otherwise indicated. The words "include," "includes" and "including" when
used herein  shall be deemed in each case to be  followed by the words  "without
limitation."  The phrase "made  available" in this Agreement shall mean that the
information  referred to has been made  available  if  requested by the party to
whom such  information is to be made available.  The headings  contained in this
Agreement  are for  reference  purposes only and shall not affect in any way the
meaning or interpretation of this Agreement.  In determining  whether a Material
Adverse Effect exists with respect to a party,  materiality  shall be determined
on the basis of the applicable party and all of its Subsidiaries, taken together
as a whole,  and not on the basis of the party or any single  Subsidiary  alone.
Reference to a party's  "knowledge" mean knowledge after  reasonable  inquiry of
such party's officers and other management-level  employees who could reasonably
be expected to have knowledge of such matters.  As used in this  Agreement,  the
term "Governmental Entity" means any (i) nation, state, commonwealth,  province,
territory, county,  municipality,  district or other jurisdiction of any nature;
(ii) federal,  state, local,  municipal,  foreign or other government;  or (iii)
governmental  or  quasi-governmental  authority  of any  nature  (including  any
governmental division, department, agency, commission,  official,  organization,
and any court or other tribunal),  


<PAGE>

and the term "Subsidiary" means, with respect to any party, any corporation,  at
least a majority  of the  securities  or other  interests  having by their terms
ordinary  voting  power to elect a majority of the Board of  Directors or others
performing   similar  functions  with  respect  to  such  corporation  or  other
organization  is directly or indirectly  owned or controlled by such party or by
any one or more of its  subsidiaries,  or by such  party  and one or more of its
subsidiaries.

                   9.3  Counterparts.  This  Agreement may be executed in one or
more  counterparts,  all of which shall be considered one and the same agreement
and shall become  effective  when one or more  counterparts  have been signed by
each of the parties and delivered to the other parties, it being understood that
all parties need not sign the same counterpart.

                   9.4  Severability.  In the event that any  provision  of this
Agreement,  or the  application  thereof,  becomes or is  declared by a court of
competent  jurisdiction to be illegal,  void or unenforceable,  the remainder of
this  Agreement  will continue in full force and effect and the  application  of
such  provision to other  persons or  circumstances  will be  interpreted  so as
reasonably to effect the intent of the parties hereto. The parties further agree
to replace such void or  unenforceable  provision of this Agreement with a valid
and  enforceable  provision  that will  achieve,  to the  extent  possible,  the
economic, business and other purposes of such void or unenforceable provision.

                   9.5 Agreement.  This  Agreement  (including the documents and
the  instruments  referred  to  herein)  constitutes  the entire  agreement  and
supersedes all prior agreements and understandings, both written and oral, among
the parties with respect to the subject matter hereof.

                   9.6 Assignment. Neither this Agreement nor any of the rights,
interests  or  obligations  hereunder  shall be  assigned  by any of the parties
hereto  (whether by operation  of law or  otherwise)  without the prior  written
consent of the other parties.  Subject to the preceding sentence, this Agreement
will be binding upon,  inure to the benefit of and be enforceable by the parties
and their respective successors and assigns.

                   9.7  Third  Party  Beneficiary.  Nothing  contained  in  this
Agreement  is intended to confer upon any person  other than the parties  hereto
and their respective  successors and permitted assigns, any rights,  remedies or
obligations under, or by reason of this Agreement.

                   9.8 No Waiver. The failure of any party to enforce any of the
provisions  hereof  shall not be  construed  to be a waiver of the right of such
party thereafter to enforce such provisions.

                   9.9 Governing  Law. This  Agreement  shall be governed in all
respects,  including  validity,  interpretation  and effect,  by the laws of the
State of Delaware, without regard to its choice of law principles.

<PAGE>


                  IN  WITNESS  WHEREOF,  each of NPI,  the  Sellers  and the NVC
Agents  has  caused  this  Agreement  to be  signed  by its  respective  officer
thereunto duly authorized, as of the date first written above.

NETWORK PERIPHERALS INC.


By: _______________________________

Title: ____________________________



                                            Counterpart Signatures of
NVC AGENTS, only as to Article VIII         SELLERS

___________________________________         _________________________________
Robert J. Zecha                             Signature

___________________________________         Print Name: _____________________
Paul Lowell                                 Entity Name: ____________________
                                            Title: __________________________

<PAGE>


                                    EXHIBIT A

                               Purchase Agreement

                               Schedule of Sellers

                                 April __, 1997



<PAGE>


                                    EXHIBIT B

                              Waiver and Agreement

<PAGE>


                                    EXHIBIT C

                                 Promissory Note

<PAGE>


                                    EXHIBIT D

                              Form of Offer Letter

<PAGE>


                                    EXHIBIT E

                    Form of Proprietary Information Agreement



<PAGE>



                                    EXHIBIT F

             NPI's Policy on Securities Trades by NPI Personnel and
                        Form of Compliance Certification



<PAGE>


                                    EXHIBIT G

                               Selected Employees



                                 Robert J. Zecha

                                 William Mahany

                                Timothy Williams

                                 Robert Wittosch

                                 Colin Taddonio


<PAGE>


                                    EXHIBIT H

                        Form of Non-Competition Agreement



<PAGE>




                                    EXHIBIT I

                       Form of Opinion of Sellers' Counsel



<PAGE>


                                    EXHIBIT J

              Form of Opinion with Respect to Indemnifying Sellers


<PAGE>


                                    EXHIBIT K

                        Form of Opinion of NPI's Counsel



FOR IMMEDIATE RELEASE
                                                                          97-010
                                                   For more information contact:
                                          Robert Hersh, Network Peripherals Inc.
                                               (408) 321-7300 or [email protected]


                            Network Peripherals Inc.
                         Acquires NetVision Corporation

               Makes Technology Investment in Gigabit Ethernet and
                   Very High Bandwidth Switching Technologies

MILPITAS,  Calif.  --  (BusinessWire)  -- April 30, 1997 -- Network  Peripherals
Inc.(NPI),  (NASDAQ:NPIX)  today announced that it has completed the transaction
to acquire NetVision Corporation, a privately-held company based on Long Island,
New York,  which is  developing  very high  bandwidth  LAN switching and Gigabit
Ethernet technologies.  The transaction will be accounted for as a purchase with
an  estimated  total cost of  approximately  $6 million,  including  payments to
NetVision  stockholders,  the assumption of certain  liabilities and transaction
expenses.   Network   Peripherals  expects  to  allocate  the  majority  of  the
acquisition cost to in-process research and development,  which will result in a
one-time charge to earnings in the quarter ending June 30, 1997.

NetVision was founded in 1993 by Robert Zecha and William Mahany to develop high
performance  multilayer switching products  incorporating  support for Ethernet,
Fast Ethernet and Gigabit Ethernet. Its competitive strength lies in its unique,
very high bandwidth  switching  (VHBS)  architecture,  its experience in Gigabit
Ethernet technology  development and its strong application  specific integrated
circuit  (ASIC)  development  capabilities.  The company has assembled a team of
technologists which together have designed over 25 ASICs and brought to market a
number  of  LAN  products   incorporating  multiple  high  speed  protocols  and
networking  switching designs including Ethernet,  Fast Ethernet,  FDDI, ATM and
Token Ring protocols in high speed architectures.

"We  are  impressed  by  NetVision's  expertise  in  cost-effective,  very  high
bandwidth  Layer 2 and Layer 3 switch  architectures,"  said  Pauline  Lo Alker,
Network Peripherals'  president and chief executive officer. "The acquisition of
NetVision  is another  critical  step in our  on-going  strategy to position our
company as a world-class  Ethernet switching technology  powerhouse.  We believe
NetVision's  experience in very high bandwidth  ASIC-based switching and Gigabit
Ethernet technologies will enable us to widen

<PAGE>

our product portfolio to include high bandwidth,  high density, low cost systems
with differentiating switching functionality," Alker said.

NetVision  Corporation  and its employees,  headed by Robert Zecha,  NetVision's
founder  and  president,  will  become  part of  Network  Peripherals'  advanced
technology  development group in New York,  reporting to Oliver Szu, NPI's chief
technology officer.

"We believe this  acquisition  brings to us a competitive  multilayer  switching
technology  for IP  traffic  and a very high  speed  backplane  architecture  to
support Gigabit  performance for  bandwidth-hungry  applications  such as video,
multimedia, Intranet/Internet access and workgroup CAD applications," Szu added.
"With  the  addition  of  this  set  of new  technologies  and  capabilities  to
complement  our existing Fast  Ethernet and FDDI  workgroup  switching  line, we
believe we will be able to provide our  customers,  VARs and OEM partners with a
very  complete and  competitive  set of high  performance,  low cost  multilayer
switching  solutions  that are  designed to handle IP switching  from  workgroup
desktops to departmental backbones."

Statements  in this release are  forward-looking  and have been made in reliance
upon the provisions of the Private Securities Litigation Reform Act of 1995. The
future events  described in such  statements  involve  risks and  uncertainties,
including:  pricing  actions  and new  product  introductions  by NPI and/or its
competitors;  the development and  commercialization  of new  technologies;  the
successful  integration of NPI and NetVision technologies and engineering staff;
the ability of NPI to recruit and retain  technical  and other staff;  and other
factors.

About Network Peripherals
Network  Peripherals Inc.  designs,  manufactures  and markets  high-performance
networking  solutions  for growing  workgroups.  These  products are designed to
enhance the bandwidth and  performance of  client/server  networks,  embrace all
popular  high-speed  technologies  and preserve the end-user's  current Ethernet
investments. With the introduction of the NuSwitch line, Network Peripherals now
offers  more  choices  in  stackable,  workgroup  switching  hubs than any other
vendor.  In  addition,  all NPI  products  are  backed by  Network  Peripherals'
unparalleled NuCare support and service policy, and are thus designed to provide
the lowest cost of  ownership  of any  workgroup  networking  solution.  Network
Peripherals maintains corporate headquarters, R&D, engineering and manufacturing
in Milpitas,  California  with additional  R&D,  engineering  and  manufacturing
facilities in Taipei, Taiwan, and regional offices throughout the world.

                                       ###

Network Peripherals and the Network  Peripherals logo are registered  trademarks
of Network  Peripherals Inc.  NuSwitch,  NuCard,  NuCare,  NuHub and NuCleus are
trademarks of Network  Peripherals  Inc. All other trademarks are owned by their
respective holders.



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