ALLEGRO NEW MEDIA INC
SC 13D, 1996-10-31
PREPACKAGED SOFTWARE
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington D.C. 20549

                                  SCHEDULE 13D

                   Under the Securities Exchange Act of 1934
                                (Amendment No. )

                             ALLEGRO NEW MEDIA, INC.
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                   016903 10 6
                                 (CUSIP Number)

                                Neil M. Kaufman
                    Blau, Kramer, Wactlar & Lieberman, P.C.
                             100 Jericho Quadrangle
                            Jericho, New York 11753
                                 (516)822-4820

  (Name , Address and Telephone Number of Person Authorized to Receive Notice
                              and Communications)

                                 August 12, 1996
            (Date of Event which Requires Filing of this Statement)


If the filing  person has  previously  filed a statement on Schedule 13G to
report the acquisition  which is the subject of this Schedule 13D, and is filing
this schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

Check the following  box if a fee is being paid with this  statement. [ ] A fee
is not required only if the reporting person: (1) has a previous statement on 
file reporting beneficial ownership of more than five percent of the  class of
securities  described  in Item 1;  and (2) has  filed  no  amendment subsequent
thereto reporting  beneficial  ownership of five percent or less of such class.)
(See Rule 13d-7.)

Note:  Six copies of this statement, including all exhibits, should be filed 
with the Commission.  See Rule 13d-1(a) for other parties to whom copies are 
to be sent.

*The remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

     The  information  required in the remainder of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 ("Act") or otherwise  subject to the  liabilities of that section of
the Act but shall be subject to all other  provisions of the Act  (however,  see
the Notes).


<PAGE>


                                  SCHEDULE 13D

                    CUSIP No. 016903 10 6 Page 2 of 74 Pages


1    Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person      Barry A.  Cinnamon
- -------------------------------------------------------------------------------

2    Check the Appropriate Box if a Member of a Group*              (a)
                                                                    (b) [X]
- -------------------------------------------------------------------------------
3    SEC Use Only
- -------------------------------------------------------------------------------

4    Source of Funds                                        Not Applicable
- -------------------------------------------------------------------------------

5    Check Box if Disclosure of Legal Proceedings is Required Pursuant 
     to Items 2(d) or 2(e)
- -------------------------------------------------------------------------------

6    Citizenship or Place of Organization                   U.S.A.
- -------------------------------------------------------------------------------

Number of
Shares         7         Sole Voting Power                  869,820
- -------------------------------------------------------------------------------

Beneficially   8         Shared Voting Power                1,869,820
- -------------------------------------------------------------------------------

Owned by Each
Reporting      9         Sole Dispositive Power             869,820
- -------------------------------------------------------------------------------

Person
With           10        Shared Dispositive Power           123,138
- -------------------------------------------------------------------------------

11   Aggregate Amount Beneficially Owned by Each Reporting Person
                             869,820
- -------------------------------------------------------------------------------

12   Check Box if the Aggregate Amount in Row (11) excludes Certain Shares*
                                                            [X]
- -------------------------------------------------------------------------------

13   Percent of Class Represented by Amount in Row (11)
                              19.5%
- -------------------------------------------------------------------------------

14   Type of Reporting Person*
                              IN
- -------------------------------------------------------------------------------
<PAGE>

Item 1:    Security and Issuer.

The securities to which this Schedule 13D relate are the shares of Common Stock,
par value  $.001 per share (the  "Shares")  of  Allegro  New  Media,  Inc. (the
"Issuer"), a corporation organized under the laws of the State of Delaware. The
address of the Issuer's principal  executive office is 3 Oak Road, Fairfield,
NJ 07004.

Item 2:    Identity and Background.

The person filing this statement is Barry A. Cinnamon, a United States citizen.
As a result of a Stockholders' Agreement among Mr. Cinnamon, Gwyn Jones, Norman
Alexander,  James Bryce, Peter Beedham, Ralf Mellor,  Esprit Automations,  Mark
Gee,  Robert  O'Mara,  Darren  Darvill,  Mark  Ramsey,  Mark  Daintree,   David
Brailsford,  David Harris,  Ingrid Regen, Michael  LaRocque,  Joseph Ossai, Leo
Belodeau,  Michael Clough, Jay Jackson,David Garreth Howe, Robin Bryce, Wallace
Bryce,  and Mr. Cinnamon and Mark Leininger,  as Trustees of the Serif (Europe)
Limited Employee Stock Option Scheme (the  "Stockholders'  Agreement," attached
hereto as Exhibit 1), Mr.  Cinnamon and such persons may be deemed, pursuant to
Rule 13d-5(b)(1) under the Securities  Exchange Act of 1934, as amended, to be a
"Group."  Mr.  Cinnamon  disclaims  the  existence  of  a  group  and disclaims
beneficial  ownership  of Shares  beneficially  owned by any  person who may be
deemed part of such group.

Mr. Cinnamon's  business address is 3 Oak Road, Fairfield,  NJ  07004.  Mr.
Cinnamon has been President and Chief Executive Officer of the Issuer since
the inception of its business in December  1993 and has been  Chairman of the
Board of the Issuer since August 1995. From 1988 through September 1992, Mr.
Cinnamon was President,  Treasurer,  Director and  co-founder  of the Bureau of
Electronic Publishing, Inc., a CD-ROM company.

During  the last  five  years,  Mr.  Cinnamon  has not  been a party to a civil
proceeding of a judicial or administrative  body of competent  jurisdiction the
result of which he was or is subject  to a  judgement,  decree  or final  order
enjoining  future violation of, or prohibiting or mandating  activities subject
to, federal or state  securities  laws or finding any violation with respect to
such laws.

Item 3:    Source or Amount of Funds or Other Consideration.

Not applicable.

Item 4:    Purpose of the Transaction.

Mr. Cinnamon acquired the 869,820 Shares he beneficially owns directly in 
connection with his formation and funding of, and employment with, the Issuer,
which acquisitions were prior to the Issuer's initial public offering.  Mr. 
Cinnamon has previously filed a Schedule 13G reporting the ownership of such 
Shares.

Pursuant to the terms of the Stockholders' Agreement, Mr. Cinnamon may be deemed
to have acquired the right, under certain circumstances,  to direct the vote of
the 1,000,000 Shares owned by the other parties to the Stockholders'  Agreement
since,  pursuant to the  Stockholders'  Agreement, Mr. Cinnamon and each of the
other  parties thereto has agreed to vote the Shares owned by him, and upon the
conversion or exchange of any securities convertible  into or exchangeable  for
Shares,  the Shares received upon such conversion or exchange, for the election
to the  Board of  Directors  of the  Issuer  (the  "Board")  of the individuals
nominated  by the  Board  and for the  election  to the Board of Gwyn  Jones or
another person designated by Gwyn Jones.

On October  1,  1996,  the Issuer  entered  into an  Agreement  and Plan of
Reorganization with Software Publishing  Corporation ("SPC") and SPC Acquisition
Corporation, a wholly-owned  subsidiary of the Issuer, pursuant to which, among
other things, the Issuer agreed to (i) merge SPC Acquisition Corporation with 
and into SPC and to issue Shares to the former stockholders of SPC and (ii) to
increase the number of directors comprising the Board of Directors of the Issuer
to eleven (11),  two (2) of whom will be designated  by SPC. This agreement and
the trasactions contemplated thereby have been unanimously approved by the Board
of Directors of the Issuer.

<PAGE>

Except for the actions described in the preceding paragraphs,  Mr. Cinnamon has
no present plans or proposals  which would result in a change in the present
Board or management of the Issuer. Mr. Cinnamon has no other present plans which
would  result in a  material  change  in the  Issuer's  business  or  corporate
structure.


Item 5:    Interest in Securities of the Issuer.

(a) As of the close of business on August 12, 1996:

     (i) Mr. Cinnamon beneficially owns 869,820 Shares directly,  which includes
an aggregate of 52,778 held by Barry A.  Cinnamon as custodian  for his children
under the New Jersey  Uniform  Gift to Minors  Act.  The number of Shares  owned
directly by Mr.  Cinnamon  does not include  (a) 60,520  shares of the  Issuer's
Class B Voting  Preferred  Stock,  each share of which has ten (10) votes on all
matters subject to a vote of stockholders, (b) options to purchase 39,744 Shares
granted to Mr.  Cinnamon's wife, Lori Kramer  Cinnamon,  under the Issuer's 1994
Long Term Incentive Plan,  which are not exercisable  within the next sixty (60)
days as to which Mr. Cinnamon  disclaims  beneficial  ownership,  (c) options to
purchase 60,500 Shares granted to Mr. Cinnamon under the Issuer's 1994 Long Term
Incentive  Plan  which are not  exercisable  within  the next 60 days or (d) the
1,000,000  Shares  owned by the other  parties to the  Stockholders'  Agreement,
which  1,000,000  Shares include 184,708 Shares held by Mr. Cinnamon and Mark E.
Leininger as Trustees of the Serif (Europe)  Limited  Employee  Share  Ownership
Trust.

     (ii) Mr. Jones  beneficially  owns 469,804 Shares,  which includes  156,600
Shares  which are held in escrow  pursuant  to two escrow  agreements  among Mr.
Jones,  the other  parties  to the  Stockholders'  Agreement  and Blau,  Kramer,
Wactlar & Lieberman,  P.C., as escrow agent, which escrowed shares Mr. Jones has
the right to vote.

     (iii) Mr. Alexander  beneficially owns 67,913 Shares, which includes 22,637
Shares  which are held in escrow  pursuant  to two escrow  agreements  among Mr.
Alexander,  the other parties to the Stockholders'  Agreement and Blau,  Kramer,
Wactlar & Lieberman,  P.C., as escrow agent, which escrowed shares Mr. Alexander
has the right to vote.

     (iv) Mr. James Bryce beneficially owns 26,250 Shares,  which includes 8,750
Shares which are held in escrow pursuant to an escrow agreement among Mr. Bryce,
certain other parties to the Stockholders' Agreement and Blau, Kramer, Wactlar &
Lieberman,  P.C., as escrow agent, which escrowed shares Mr. Bryce has the right
to vote.

     (v) Mr.  Beedham  beneficially  owns 51,276 Shares,  which includes  17,092
Shares  which  are held in escrow  pursuant  to an  escrow  agreement  among Mr.
Beedham,  certain other parties to the Stockholders' Agreement and Blau, Kramer,
Wactlar & Lieberman,  P.C., as escrow agent,  which escrowed  shares Mr. Beedham
has the right to vote.

     (vi) Mr. Mellor  beneficially  owns 34,942 Shares,  which  includes  11,647
Shares  which  are held in escrow  pursuant  to an  escrow  agreement  among Mr.
Mellor,  certain other parties to the Stockholders'  Agreement and Blau, Kramer,
Wactlar & Lieberman, P.C., as escrow agent, which escrowed shares Mr. Mellor has
the right to vote.

     (vii) Espirit Automations  beneficially owns 26,250 Shares,  which includes
8,750  Shares  which are held in escrow  pursuant to an escrow  agreement  among
Espirit  Automations,  certain other parties to the Stockholders'  Agreement and
Blau, Kramer, Wactlar & Lieberman,  P.C., as escrow agent, which escrowed shares
Espirit Automations has the right to vote.

     (viii) Mr. Gee beneficially owns 12,383 Shares, which includes 4,128 Shares
which are held in escrow pursuant to an escrow  agreement among Mr. Gee, certain
other  parties  to the  Stockholders'  Agreement  and  Blau,  Kramer,  Wactlar &
Lieberman, P.C., as escrow agent, which escrowed shares Mr. Gee has the right to
vote.

<PAGE>

     (ix) Mr. O'Mara  beneficially  owns 10,319  Shares,  which  includes  3,440
Shares  which  are held in escrow  pursuant  to an  escrow  agreement  among Mr.
O'Mara,  certain other parties to the Stockholders'  Agreement and Blau, Kramer,
Wactlar & Lieberman, P.C., as escrow agent, which escrowed shares Mr. O'Mara has
the right to vote.

     (x) Mr. Darvill beneficially owns 4,128 Shares, which includes 1,376 Shares
which are held in escrow  pursuant  to an escrow  agreement  among Mr.  Darvill,
certain other parties to the Stockholders' Agreement and Blau, Kramer, Wactlar &
Lieberman,  P.C., as escrow agent,  which  escrowed  shares Mr.  Darvill has the
right to vote.

     (xi) Mr. Ramsey beneficially owns 4,128 Shares, which includes 1,376 Shares
which  are held in escrow  pursuant  to an escrow  agreement  among Mr.  Ramsey,
certain other parties to the Stockholders' Agreement and Blau, Kramer, Wactlar &
Lieberman, P.C., as escrow agent, which escrowed shares Mr. Ramsey has the right
to vote.

     (xii) Mr.  Daintree  beneficially  owns 4,128 Shares,  which includes 1,376
Shares  which  are held in escrow  pursuant  to an  escrow  agreement  among Mr.
Daintree, certain other parties to the Stockholders' Agreement and Blau, Kramer,
Wactlar & Lieberman,  P.C., as escrow agent,  which escrowed shares Mr. Daintree
has the right to vote.

     (xiii) Mr. Brailsford  beneficially  owns 2,683 Shares,  which includes 894
Shares  which  are held in escrow  pursuant  to an  escrow  agreement  among Mr.
Brailsford,  certain  other  parties to the  Stockholders'  Agreement  and Blau,
Kramer,  Wactlar & Lieberman,  P.C., as escrow agent,  which escrowed shares Mr.
Brailsford has the right to vote.

     (xiv) Mr. Harris  beneficially  owns 17,542  Shares,  which  includes 5,847
Shares  which  are held in escrow  pursuant  to an  escrow  agreement  among Mr.
Harris,  certain other parties to the Stockholders'  Agreement and Blau, Kramer,
Wactlar & Lieberman, P.C., as escrow agent, which escrowed shares Mr. Harris has
the right to vote.

    (xv) Ms. Regen beneficially owns 12,270 Shares, which includes 4,090 Shares
which  are held in  escrow  pursuant  to an escrow  agreement  among Ms.  Regen,
certain other parties to the Stockholders' Agreement and Blau, Kramer, Wactlar &
Lieberman,  P.C., as escrow agent, which escrowed shares Ms. Regen has the right
to vote.

     (xvi) Mr.  LaRocque  beneficially  owns 6,000 Shares,  which includes 2,000
Shares  which  are held in escrow  pursuant  to an  escrow  agreement  among Mr.
LaRocque, certain other parties to the Stockholders' Agreement and Blau, Kramer,
Wactlar & Lieberman,  P.C., as escrow agent,  which escrowed shares Mr. LaRocque
has the right to vote.

     (xvii) Mr. Ossai  beneficially  owns 6,000  Shares,  which  includes  2,000
Shares which are held in escrow pursuant to an escrow agreement among Mr. Ossai,
certain other parties to the Stockholders' Agreement and Blau, Kramer, Wactlar &
Lieberman,  P.C., as escrow agent, which escrowed shares Mr. Ossai has the right
to vote.

     (xviii) Mr. Belodeau  beneficially owns 3,000 Shares,  which includes 1,000
Shares  which  are held in escrow  pursuant  to an  escrow  agreement  among Mr.
Belodeau, certain other parties to the Stockholders' Agreement and Blau, Kramer,
Wactlar & Lieberman,  P.C., as escrow agent,  which escrowed shares Mr. Belodeau
has the right to vote.

     (xix) Mr. Clough  beneficially  owns 3,000  Shares,  which  includes  1,000
Shares  which  are held in escrow  pursuant  to an  escrow  agreement  among Mr.
Clough,  certain other parties to the Stockholders'  Agreement and Blau, Kramer,
Wactlar & Lieberman, P.C., as escrow agent, which escrowed shares Mr. Clough has
the right to vote.

<PAGE>

     (xx) Mr.  Jackson  beneficially  owns 3,000 Shares,  which  includes  1,000
Shares  which  are held in escrow  pursuant  to an  escrow  agreement  among Mr.
Jackson,  certain other parties to the Stockholders' Agreement and Blau, Kramer,
Wactlar & Lieberman,  P.C., as escrow agent,  which escrowed  shares Mr. Jackson
has the right to vote.

     (xxi) Mr. Howe beneficially owns 4,000 Shares,  which includes 1,334 Shares
which are held in escrow pursuant to an escrow agreement among Mr. Howe, certain
other  parties  to the  Stockholders'  Agreement  and  Blau,  Kramer,  Wactlar &
Lieberman,  P.C., as escrow agent,  which escrowed shares Mr. Howe has the right
to vote.

     (xxii) Mr. Robin Bryce  beneficially  owns 23,138  Shares,  which  includes
7,712 Shares which are held in escrow pursuant to an escrow  agreement among Mr.
Bryce,  certain other parties to the Stockholders'  Agreement and Blau,  Kramer,
Wactlar & Lieberman,  P.C., as escrow agent, which escrowed shares Mr. Bryce has
the right to vote.

     (xxiii) Mr. Wallace Bryce  beneficially owns 23,138 Shares,  which includes
7,712 Shares which are held in escrow pursuant to an escrow  agreement among Mr.
Bryce,  certain other parties to the Stockholders'  Agreement and Blau,  Kramer,
Wactlar & Lieberman,  P.C., as escrow agent, which escrowed shares Mr. Bryce has
the right to vote.

     (xxiv)  Mr.  Cinnamon  and Mark E.  Leininger,  as  Trustees  of the  Serif
(Europe) Limited Employee Share Ownership Trust beneficially own 184,708 Shares,
which  includes  61,570  Shares  which are held in escrow  pursuant to an escrow
agreement  among Mr.  Cinnamon and Mark E.  Leininger,  as Trustees of the Serif
(Europe)  Limited Stock Option  Scheme,  the other parties to the  Stockholders'
Agreement and Blau,  Kramer,  Wactlar & Lieberman,  P.C., as escrow agent, which
escrowed  shares Mr.  Cinnamon and Mark E.  Leininger,  as Trustees of the Serif
(Europe) Employee Share Ownership Trust, have the right to vote.

(b)  (i) Mr. Cinnamon has sole power to dispose or direct the disposition of
the Shares beneficially owned by him.

     (ii) Mr. Cinnamon and Mr.  Leininger have shared power to dispose or direct
the disposition of the 123,138 Shares  beneficially owned by them as Trustees of
the Serif (Europe) Employee Share Ownership Trust.

(c) On August 23,  1996,  Mr.  Cinnamon  sold  42,946 of the  Shares  then owned
directly by him at a price of $6.00 per share in a transaction on NASDAQ.

Pursuant to the Stockholders'  Agreement,  until July 31, 1998, (i) Mr. Cinnamon
has  agreed  to  vote  the  Shares  owned  by him, and upon the  conversion or
exchange of any securities  convertible  into or  exchangeable  for Shares,  the
Shares received upon such conversion or exchange,  for the election to the Board
of Directors of the Issuer of Gwyn Jones or another  person  designated  by Gwyn
Jones and (ii) each of the other  persons  who are  parties to the  Stockholders
Agreement  have  agreed  to vote the  Shares  owned by him or her and,  upon the
conversion or exchange of any securities  convertible  into or exchangeable  for
Shares,  the Shares received upon such conversion or exchange,  for the election
to the Board of the Issuer of the individuals nominated by the Board and for the
election to the Board of Gwyn Jones or another person designated by Gwyn Jones.


<PAGE>

Item 6:    Contracts, Arrangements, Understandings or Relationship with Respect
           to Securities of the Issuer.

Pursuant to the Stockholders'  Agreement,  until July 31, 1998, Mr. Cinnamon and
each of the other  parties  thereto  has agreed to vote the Shares  owned by him
and,  upon the  conversion  or exchange of any  securities  convertible  into or
exchangeable  for Shares,  the Shares received upon such conversion or exchange,
for the election to the Board of the Issuer of the individuals  nominated by the
Board  and for the  election  to the  Board  of Gwyn  Jones  or  another  person
designated by Gwyn Jones.

Item 7:    Exhibits.

1.    Stockholders' Agreement among Barry A.  Cinnamon, Gwyn Jones and the
      Persons signatory thereto.

2.    Escrow  Agreement among Allegro New Media,  Inc., Serif Inc., the Persons
      signatory thereto and Blau, Kramer,  Wactlar & Lieberman, P.C., as Escrow
      Agent.

3.    Escrow Agreement among Allegro New Media,  Inc., Serif (Europe)  Limited,
      the Persons signatory thereto and Blau, Kramer, Wactlar & Lieberman, P.C.,
      as Escrow Agent.

4.    Trust Deed establishing "The Serif (Europe) Employee Share Ownership
      Trust."

5.    Agreement and Plan of Reorganization by and among Allegro New Media, Inc.,
      SPC Acquisition Corporation and Software Publishing Corporation.
<PAGE>


Signature.
 After reasonable  inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true complete and correct.

October 31, 1996
- ------------------------
Date

/s/ Barry A. Cinnamon
- ------------------------
Signature

- ------------------------
Name/Title

Attention: Intentional misstatements or omissions of fact constitute Federal
criminal violations (See 18 U.S.C. 1001).



  


                             STOCKHOLDERS' AGREEMENT


                              relating to stock of

                             ALLEGRO NEW MEDIA, INC.




                            DATED AS OF JULY 31, 1996



<PAGE>



1.   PURCHASE OF COMMON STOCK. . . . . . . . . . . . . . . . . . . . . . 3

2.   CERTAIN CORPORATE DOCUMENTS.. . . . . . . . . . . . . . . . . . . . 3

3.   CURRENT OPERATIONS. . . . . . . . . . . . . . . . . . . . . . . . . 4

4.   TERMINATION OF AGREEMENT. . . . . . . . . . . . . . . . . . . . . . 4

5.   RATIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

6.   VALIDITY OF AGREEMENT.. . . . . . . . . . . . . . . . . . . . . . . 5

7.   NOTICES.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

8.   SUCCESSORS AND ASSIGNS. . . . . . . . . . . . . . . . . . . . . . . 5

9.   MODIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

10.  WAIVER  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

11.  GOVERNING LAW . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

12.  ENTIRE AGREEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . 6

13.  COUNTERPARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6


<PAGE>


                             STOCKHOLDERS' AGREEMENT


     AGREEMENT  made as of the 31st day of July,  1996,  by and  among  Barry A.
Cinnamon,  Gwyn Jones and the persons whose  signatures  appear on the signature
pages hereto (all of the foregoing being hereinafter referred to collectively as
the "Stockholders" and each individually, a "Stockholder").


                              W I T N E S S E T H :


     WHEREAS,  the Stockholders own an aggregate  1,938,266 shares of the common
stock,  par value $.001 per share (the "Stock") of Allegro New Media,  Inc. (the
"Corporation"); and

     WHEREAS,  the Stockholders  desire to provide for the orderly management of
the business and affairs of the  Corporation,  all upon the terms and conditions
set forth herein.

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

   1.   OWNERSHIP OF COMMON STOCK.

     Effective July 31, 1996, each of the Stockholders owns,  beneficially or of
record,  the number of shares of Stock set forth next to his or her signature on
the signature page hereof.

   2.   CERTAIN CORPORATE DOCUMENTS.

     The Stockholders  acknowledge that they have reviewed and are familiar with
the Certificate of Incorporation and By-laws of the Corporation, copies of which
are attached hereto as Exhibits "A" and "B", respectively.

   3.   CURRENT OPERATIONS.

     Each party  hereto  hereby  agrees  that,  as long as such party  remains a
Stockholder  of the  Corporation,  such party will vote and continue to vote the
Stock owned by such party in the Corporation as follows:

     (a) Each of the  Stockholders  will vote the shares of Stock  owned by him,
and upon the  conversion  or  exchange  of any  securities  convertible  into or
exchangeable  for  shares  of Stock,  the  shares  of Stock  received  upon such
conversion  or  exchange,  for the  election  to the Board of  Directors  of the
Corporation (the "Board") of the individuals  nominated by the Board and for the
election to the Board of Gwyn Jones or another person designated by Gwyn Jones.


<PAGE>

     (b) Barry A.  Cinnamon will vote the shares of Stock owned by him, and upon
the conversion or exchange of any securities  convertible  into or  exchangeable
for  shares of Stock,  the  shares of Stock  received  upon such  conversion  or
exchange,  for the  election  to the  Board  of Gwyn  Jones  or  another  person
designated by Gwyn Jones.

     (c)  The  Stockholders  agree  and  acknowledge  that  the  affairs  of the
Corporation  shall be managed by the Board as  provided  in the  Certificate  of
Incorporation and the By-laws of the Corporation. 

     4. TERMINATION OF AGREEMENT.

     This  Agreement  shall  terminate on the occurrence of any of the following
events:

     (a)  July 31, 1998;

     (b)  Cessation of the Corporation's business; or

     (c)  Bankruptcy, receivership or dissolution of the Corporation.

     5.   CORPORATE ACTION.

     By executing this Agreement,  the Corporation  and the  Stockholders  agree
that this Agreement shall be incorporated into the corporate minutes and bylaws,
and if amendment of the Corporation's Certificate of Incorporation and/or bylaws
is necessary for any provisions of this Agreement to be legally enforceable,  in
favor of such amendment to the Certificate of Incorporation and/or bylaws.

     6.   VALIDITY OF AGREEMENT.

     In the event that any provision of this Agreement  shall be held to be void
or unenforceable,  the remaining  provisions of this Agreement shall continue in
full force and effect.

     7.   NOTICES.

     All notices  required or agreed to be given hereunder by any party shall be
in writing and shall be sent by registered  or certified  mail,  return  receipt
requested,  addressed to the party  intended to be notified at the  addresses of
the respective  parties as set forth on the signature  page hereto.  The date of
registration or certification  shall be deemed the date of giving of the notice.
Notice given as aforesaid  shall be sufficient  service  thereof.  Any party may
change his or its  address  by giving  notice  thereof  to the other  parties by
registered or certified mail.


<PAGE>

     8.   SUCCESSORS AND ASSIGNS.

     This Agreement  shall be binding upon and shall inure to the benefit of the
parties,   and   their   respective    executors,    administrators,    personal
representatives,  transferees,  successors and assigns.  If any person,  firm or
corporation shall acquire any Stock of any Stockholder in any manner, whether by
operation  of law or  otherwise,  such Stock shall be held subject to all of the
terms of this Agreement, and by taking and holding such Stock, such person, firm
or corporation shall be conclusively deemed to have agreed to be bound by and to
perform all of the terms and provisions of this  Agreement;  provided,  that the
foregoing shall not be construed to apply to any purchaser of Stock in brokerage
transactions  permitted  by the  terms of the  Lock-Up  Agreement  of even  date
between each Stockholder and the Corporation.

     9.   MODIFICATION.

     This  Agreement  may not be  modified,  amended or  terminated  except by a
subsequent writing signed by the parties to this Agreement.

     10.  WAIVER.

     A waiver of any  breach or  violation  of any term,  provision,  agreement,
covenant or condition  herein  contained  shall not be deemed to be a continuing
waiver or a waiver of any further or past breach or violation.

     11.  GOVERNING LAW.

     This Agreement shall be governed by, and construed in accordance  with, the
laws of the State of Delaware, without regard to principles of conflicts of law.
Any dispute  arising out of this Agreement shall be resolved in a state court of
the State of New York located  within the  counties of Nassau or Suffolk,  or in
the United States  District Court for the Eastern  District of New York. Each of
the parties  hereto by  executing  this  Agreement  and  accepting  the benefits
hereof, hereby consents to the jurisdiction of such courts.

     12.  ENTIRE AGREEMENT.

     This  Agreement  contains the entire  understanding  among the parties with
respect to the matters described herein and supersedes any prior  understandings
and  agreements  between and among them  respecting  the subject  matter of this
Agreement and any prior agreements among the Stockholders of the Corporation.

13.  COUNTERPARTS.

     This  Agreement  may be executed in two (2) or more  counterparts,  each of
which shall be deemed an original,  but all of which together  shall  constitute
one and the same instrument.

<PAGE>

     IN WITNESS WHEREOF, the parties have duly executed this Agreement as of the
day and year first above written.


                                    STOCKHOLDERS:
Number of
Shares of Stock                     Name

          938,266                   /s/Barry A. Cinnamon
                                    Barry A. Cinnamon
                                    Allegro New Media, Inc.
                                    16 Passaic Avenue, Unit 6
                                    Fairfield, New Jersey 07004


          469,804                   /s/Gwyn Jones
                                    Gwyn Jones
                                    Serif Inc.
                                    One Chestnut Street
                                    Nashua, New Hampshire 03601

           67,913                   /s/Norman Alexander-Attorney in Fact
                                    Norman Alexander

                                    Address:


           26,250                   /s/James Bryce-Attorney-in-Fact
                                    James Bryce

                                    Address:


           51,276                   /s/Peter Beedham-Attorney-in-Fact
                                    Peter Beedham

                                    Address:



<PAGE>

           34,942                   /s/Ralf Mellor-Attorney-in-Fact
                                    Ralf Mellor

                                    Address:


           26,250                   /s/Esprit Automations-Attorney-in-Fact
                                    Esprit Automations

                                    Address:


           12,383                   /s/Mark Gee-Attorney-in-Fact
                                    Mark Gee

                                    Address:


           10,319                   /s/Robert O'Mara-Attorney-in-Fact
                                    Robert O'Mara

                                    Address:


            4,128                   /s/Darren Darvill-Attorney-in-Fact
                                    Darren Darvill

                                    Address:


<PAGE>


            4,128                   /s/Mark Ramsey-Attorney-in-Fact
                                    Mark Ramsey

                                    Address:


            4,128                   /s/Mark Daintree-Attorney-in-Fact
                                    Mark Daintree

                                    Address:


            2,683                   /s/David Brailsford-Attorney-in-Fact
                                    David Brailsford

                                    Address:


           17,542                   /s/David Harris-Attorney-in-Fact
                                    David Harris

                                    Address:


           12,270                   /s/Ingrid Regen-Attorney-in-Fact
                                    Ingrid Regen

                                    Address:


            6,000                   /s/Michael LaRocque-Attorney-in-Fact
                                    Michael LaRocque

                                    Address:


<PAGE>


            6,000                   /s/Joseph Ossai-Attorney-in-Fact
                                    Joseph Ossai

                                    Address:


            3,000                   /s/Leo Belodeau-Attorney-in-Fact
                                    Leo Belodeau

                                    Address:


            3,000                   /s/Michael Clough-Attorney-in-Fact
                                    Michael Clough

                                    Address:


            3,000                   /s/Jay Jackson-Attorney-in-Fact
                                    Jay Jackson

                                    Address:


            4,000                   /s/David Garreth Howe-Attorney-in-Fact
                                    David Garreth Howe

                                    Address:


<PAGE>


          23, 138                   /s/Robin Bryce-Attorney-in-Fact
                                    Robin Bryce

                                    Address:


          23, 138                   /s/Wallace Bryce-Attorney-in-Fact
                                    Wallace Bryce

                                    Address:


          184,708
                                    Serif (Europe) Trustees Ltd.

                                    Address:





                                                                  EXHIBIT 2

                                ESCROW AGREEMENT



     ESCROW AGREEMENT,  dated as of July 31, 1996 (the "Escrow  Agreement"),  by
and among ALLEGRO NEW MEDIA,  INC., a Delaware  corporation  ("Allegro"),  SERIF
INC., a Delaware corporation  ("Serif"),  THE PERSONS WHOSE SIGNATURES APPEAR ON
THE SIGNATURE PAGE HEREOF (individually,  a "Stockholder" and collectively,  the
"Stockholders"),  being the  owners of all the issued  and  outstanding  capital
stock of  Serif,  GWYN  JONES  (the  "Stockholders'  Representative),  and BLAU,
KRAMER, WACTLAR & LIEBERMAN, P.C., as escrow agent (the "Escrow Agent").

                              W I T N E S S E T H:


     WHEREAS, Allegro, Serif and the Stockholders have entered into an Agreement
and Plan of Reorganization (the "Reorganization Agreement") dated as of July 31,
1996,  providing for, among other things,  the exchange by the  Stockholders and
Allegro of all the outstanding  capital stock of Serif for 245,403 shares of the
common stock, par value $.001 per share, of Allegro (the "Exchange Stock"); and

     WHEREAS, Section 3.3 of the Reorganization Agreement requires that Allegro,
Serif and the  Stockholders  agree to enter into this Escrow  Agreement with the
Escrow  Agent for the  purpose of  securing  the  indemnity  obligations  of the
Stockholders under Section 11 of the Reorganization Agreement;

     NOW, THEREFORE, in consideration of the mutual covenants and agreements set
forth herein,  Allegro,  Serif, the Stockholders and the Escrow Agent agree that
all  capitalized  terms used herein  without  definition  shall have the meaning
ascribed to them in the Reorganization Agreement and further agree as follows:

ARTICLE I.  ESCROWED PROPERTY

     1.01 Each of the  Stockholders  has this day  delivered to the Escrow Agent
that number of Exchange  Shares set forth next to his signature on the signature
page hereof, which Exchange Shares aggregate 80,467 shares (hereinafter referred
to collectively as the "Escrowed Property").

     1.02 The Escrow Agent acknowledges  receipt of negotiable  certificates for
the Escrowed Property issued in the names of each of the Stockholders with blank
stock powers  attached  properly  executed by the  Stockholders,  and the Escrow
Agent  agrees  to  hold or  dispose  of the  Escrowed  Property  and  any  other
collateral in accordance with the terms of this Escrow Agreement.


<PAGE>

     1.03 All dividends and other distributions  (whether of cash, securities or
other  property)  upon or in respect  of any of the  Escrowed  Property  and all
property  receivable in substitution or exchange therefor shall be included with
and constitute part of the Escrowed Property.

ARTICLE II. APPLICATION OF ESCROWED PROPERTY

     2.01 The Escrow  Agent will hold the  Escrowed  Property in its  possession
under the  provisions of this Escrow  Agreement  until  authorized  hereunder to
deliver the Escrowed  Property or any specified  portion thereof as set forth in
Section 2.02 or Section 2.03.

     2.02 The Escrow Agent shall  distribute  the amounts  deposited as Escrowed
Property  promptly upon  delivery of and in accordance  with (i) a joint written
notice of Allegro and the Stockholders'  Representative  providing  instructions
therein or (ii) written notice of Allegro and the  Stockholders'  Representative
providing  instructions  therein and certifying that the dispute with respect to
any  amount or amounts  deposited  in the  escrow  provided  for herein has been
determined and resolved by entry of a final order, decree or judgment by a court
of  competent  jurisdiction  in the  State of New  York  (the  time  for  appeal
therefrom  having  expired and no appeal having been  perfected),  or consent to
entry of any judgment concerning a claim, which notice shall be accompanied by a
copy of any such order, decree or judgment certified by the clerk of such court.

     2.03 In the event that prior to May 1, 1998 (the "Termination  Date"),  the
Escrow  Agent  has not  received  notice of a claim  for  indemnification  under
Section 11 of the  Reorganization  Agreement  which  remains  unresolved  on the
Termination Date, the Escrow Agent shall distribute the Escrowed Property to the
Stockholders in proportion to the Escrowed  Property which such  Stockholder has
delivered to the Escrow Agent. In the event that on the  Termination  Date there
exists an  unresolved  claim,  then in such event the Escrow Agent shall reserve
from the  Escrowed  Property  an amount  equal to the  amount of the  claim,  as
determined in  accordance  with the  provisions of Article IV hereof,  and shall
distribute any remaining balance.

ARTICLE III.   RELATED PROVISIONS

     3.01 Upon the release and delivery of any amount of the  Escrowed  Property
to any party  pursuant to this  Escrow  Agreement,  the Escrow  Agent shall also
release and deliver to such party the pro rata  portion of the  interest,  other
income or property so  released,  up to the date of such  release and  delivery,
attributable  to such amount of the  Escrowed  Property  being so  released  and
delivered.

     3.02 In connection with the delivery of written notices to the Escrow Agent
by Allegro, the Stockholders'  Representative,  or both such parties,  each such
written  notice  shall be signed by an officer  of Allegro or the  Stockholders'
Representative,  or both, as appropriate, and shall accurately set forth in each
case:


<PAGE>

            (a)  the total amount that the Escrow Agent is thereby directed to
      distribute out of the Escrowed Property;

            (b)  the party to whom, or the fund to which, the Escrow Agent is
      thereby directed to distribute such amount; and

            (c) the date upon which the Escrow  Agent is directed to  distribute
      such   amount;   and  such   officer  of  Allegro  or  the   Stockholders'
      Representative,  or  both,  as the case may be,  shall  certify  as to the
      compliance with such notice and the contents thereof.

The Escrow Agent may rely fully on the  provisions set forth in any such written
notice which on its face  complies  with the  provisions  of Article II and this
Section 3.02.

ARTICLE IV.    SETTLEMENT OF DISPUTES

     4.01 Any dispute  which may arise  between  Allegro  and the  Stockholders'
Representative  under this Escrow  Agreement  with respect to (a) the  delivery,
ownership  and/or right to  possession  of the Escrowed  Property or any portion
thereof,  (b) the facts upon which the Escrow Agent's  determinations  hereunder
are  based,  (c) the  duties of the  Escrow  Agent  hereunder  and (d) any other
questions arising under this Escrow Agreement,  shall be settled either by (i) a
joint written notice of Allegro and the Stockholders'  Representative  providing
instructions  to the Escrow  Agent  therein  or (ii) by entry of a final  order,
decree or judgment by a court of competent jurisdiction in the State of New York
(the  time for  appeal  therefrom  having  expired  and no  appeal  having  been
perfected).

     4.02 The Escrow  Agent  shall be under no duty to  institute  or defend any
such proceedings and none of the costs and expenses of any such proceeding shall
be borne by the  Escrow  Agent.  In the  event the  terms of a  settlement  of a
dispute  hereunder  increase  the  duties or  liabilities  of the  Escrow  Agent
hereunder and the Escrow Agent has not  participated in such settlement so as to
be bound thereby, then such settlement shall be effective as to the Escrow Agent
in respect of such  increase in its duties or  liabilities  only upon the Escrow
Agent's  written  assent  thereto.  Prior to the  settlement  of any disputes as
provided in this  Article IV, the Escrow  Agent is  authorized  and  directed to
retain in its  possession,  without  liability  to anyone,  such  portion of the
Escrowed Property which is the subject of or involved in the dispute.

ARTICLE V.  CONCERNING THE ESCROW AGENT.

     5.01 The Escrow Agent shall be entitled to reasonable  compensation for its
services  hereunder  and  shall  be  reimbursed  for  all  reasonable  expenses,
disbursements and advances (including  reasonable  attorneys' fees and expenses)

<PAGE>

incurred or made by it in performance of its duties  hereunder.  Such reasonable
compensation,  disbursement,  expenses  and advances  shall be borne  equally by
Allegro and the  Stockholders'  Representative  and shall be paid  promptly upon
request by the Escrow Agent.

     5.02 The  Escrow  Agent  may  resign  and be  discharged  from  its  duties
hereunder  at any time by  giving  notice of such  resignation  to  Allegro  and
Stockholders'  Representative specifying a date (not less than 30 days after the
giving of such notice) when such resignation  shall take effect.  Promptly after
such  notice,  Allegro  and the  Stockholders'  Representative  shall  appoint a
mutually agreeable successor Escrow Agent, such successor Escrow Agent to become
Escrow Agent  hereunder upon the resignation  date specified in such notice.  If
Allegro  and  the  Stockholders'  Representative  are  unable  to  agree  upon a
successor  Escrow Agent with 30 days after such  notice,  the Escrow Agent shall
have the  right to  petition  a court of  competent  jurisdiction  to  appoint a
successor,  and the Escrow  Agent shall  continue  to serve until its  successor
accepts the escrow and receives the Escrowed Property.

     5.03 The  Escrow  Agent  undertakes  to  perform  only  such  duties as are
specifically set forth herein. The Escrow Agent acting or refraining from acting
in good faith  shall not be liable for any  mistake of fact or error of judgment
by it or for any acts or omissions by it of any kind unless caused by negligence
or willful misconduct,  and shall be entitled to rely, and shall be protected in
doing so, upon (a) any written notice, instrument or signature believed by it to
be genuine and to have been signed or  presented  by the proper party or parties
duly  authorized  to do so, and (b) the  advice of counsel  (which may be of the
Escrow  Agent's own choosing,  so long as such counsel is not counsel to Allegro
or  the   Stockholders'   Representative).   The  Escrow  Agent  shall  have  no
responsibility  for the contents of any writing  submitted  to it hereunder  and
shall be entitled in good faith to rely without any liability  upon the contents
thereof. The Escrow Agent has no responsibilities  under, and shall be deemed to
have no knowledge of, the provisions of the Reorganization Agreement.

     5.04 Allegro and the  Stockholders  agree to indemnify the Escrow Agent and
hold it harmless  against any and all liabilities  incurred by it hereunder as a
consequence  of  such  indemnifying  party's  action  and  the  Allegro  and the
Stockholders  further  agree to indemnify  the Escrow Agent and hold it harmless
against  any and all losses,  costs,  fees and  expenses  incurred by the Escrow
Agent which are not a consequence of its actions or failure to act,  except,  in
either case for liabilities  incurred by the Escrow Agent resulting from its own
gross  negligence  or  willful  misconduct.  One-half  of the amount of any such
payment or indemnification  shall be paid to the Escrow Agent by Allegro and the
other half of the amount of any such payment or indemnification shall be paid by
the Stockholders.  The  indemnification  provided pursuant to this section shall
survive the  resignation  of the Escrow Agent or the  termination of this Escrow
Agreement.

     5.05 In the event the Escrow Agent  becomes  involved in any  litigation or
dispute by reason hereof, it is hereby authorized to deposit with the clerk of a
court of competent jurisdiction the Escrowed Property held by it pursuant hereto

<PAGE>

and, thereupon,  shall stand fully relieved and discharged of any further duties
hereunder.  Also, in the event the Escrow Agent is threatened with litigation by
reason hereof, it is hereby  authorized to interplead all interested  parties in
any court of competent  jurisdiction and to deposit with the clerk of such court
the Escrowed  Property held by it pursuant  hereto and,  thereupon,  shall stand
fully relieved and discharged of any further duties hereunder.

     5.06 In the  event of any  claim,  dispute  or  litigation  concerning  the
Reorganization  Agreement  or this Escrow  Agreement,  Blau,  Kramer,  Wactlar &
Lieberman,  P.C.  shall  nevertheless  have the  unqualified  right to represent
Allegro,  its  officers and  directors in respect of any such claim,  dispute or
litigation, notwithstanding that it is acting as Escrow Agent hereunder.

ARTICLE VI.    STOCKHOLDERS' REPRESENTATIVE

     6.01 The  Stockholders,  and each of them,  hereby  appoint Gwyn Jones (the
"Stockholders'  Representative")  as their agent to (i) execute and deliver this
Escrow Agreement on behalf of the Stockholders and to represent,  act for and on
behalf of, and bind each of the  Stockholders in the performance of all of their
obligations  arising  from or  relating  to this  Escrow  Agreement,  including,
without  limitation (a) the execution and delivery of any document,  certificate
or  agreement  required  under this  Escrow  Agreement  to be  delivered  by the
Stockholders; (b) the negotiation and settlement of claims of Allegro in respect
of the Escrowed Property and for  indemnification  pursuant to Section 11 of the
Reorganization Agreement and the making of any objection to such claims; and (c)
the  representation  of the  Stockholders  at any  arbitration  or litigation in
respect of the foregoing;  (ii) give and receive  notices and receive service of
process under or pursuant to this Escrow Agreement;  and (iii) to represent, act
for,  and  bind  each of the  Stockholders  in the  performance  of all of their
obligations   arising  from  or  related  to  this  Escrow   Agreement  and  the
indemnification  provisions of Section 11 of the Reorganization  Agreement.  The
Stockholders' Representative hereby accepts such appointment.

     6.02 In the event that the Stockholders'  Representative  shall die, become
incapacitated,  resign or otherwise by unable to fulfill his duties hereunder, a
successor  Stockholders'  Representative  shall be selected by the  Stockholders
receiving a majority of the Escrowed Property as soon as reasonably  practicable
thereafter.  If the Stockholders  desire to remove or replace the  Stockholders'
Representative for any reason,  any such Stockholders'  Representative may be so
removed or  replaced by the  Stockholders  entitled to receive a majority of the
Escrowed   Property.   Any  decision,   act,   consent  or  instruction  of  the
Stockholders' Representative shall constitute a decision of the Stockholders and
shall be  conclusive  and  binding  upon the  Stockholders,  and Allegro and the
Escrow Agent may rely upon any such decision, act, consent or instruction of the
Stockholders'  Representative as being the decision, act, consent or instruction
of the Stockholders.


<PAGE>

ARTICLE VII.   MISCELLANEOUS

     7.01 This Escrow  Agreement will be binding upon,  inure to the benefit of,
and be  enforceable  by the  respective  successors  and  assigns of the parties
hereto,  but neither this Escrow Agreement,  nor any of the rights,  interest or
obligations hereunder shall be assigned by any of the parties hereto without the
prior written  consent of the other  parties,  except with respect to the Escrow
Agent as provided in Article V hereof.

     7.02 This Escrow Agreement contains the entire understanding of the parties
with  respect  to this  subject  matter,  and may be  amended  only by a written
instrument duly executed by Allegro, Serif and the Stockholders' Representative.

     7.03 All notices,  consents,  requests,  instructions,  approvals and other
communications  provided for herein and all legal process in regard hereto shall
be validly given, made or served, if in writing and delivered personally or sent
by registered or certified mail (return  receipt  requested),  postage  prepaid,
recognized  national or international  air courier or by facsimile  transmission
electronically confirmed:

      if to Allegro:

            Allegro New Media, Inc.
            16 Passaic Avenue
            Fairfield, New Jersey 07006
            Fax: (201) 808-2645
            Attn.: Barry A. Cinnamon
                   Chairman of the Board

      with a copy to:

            Neil M. Kaufman, Esq.
            Blau, Kramer, Wactlar & Lieberman, P.C.
            100 Jericho Quadrangle
            Jericho, New York ll753
            Fax: (516) 822-4824

      if to Serif, the Stockholders, or the Stockholders'
      Representative, to the Stockholder's Representative:

            Gwyn Jones
            Serif Inc.
            One Chestnut Street
            Suite 305
            Nashu, New Hampshire 03060

      with a copy to:

            Neil Schauer, Esq.
            Deutsch Williams Brooks DeRensis Holland
               & Drachman, P.C.
            99 Summer Street
            Boston, MA 02110-1235
            Fax: (617) 951-2323


<PAGE>

      if to the Escrow Agent:

            Blau, Kramer, Wactlar & Lieberman, P.C.
            100 Jericho Quadrangle
            Jericho, New York ll753
            Fax: (516) 822-4824
            Attn.:  Neil M. Kaufman, Esq.

or, in each case, at such other address as may be specified in writing to the
other parties.

     7.04 This Escrow Agreement shall be governed by, and construed and enforced
in  accordance  with the laws of the  State of New York,  without  regard to its
conflicts of law rules.

     7.05 This Escrow Agreement may be executed  simultaneously in counterparts,
each of which  shall be  deemed  an  original  but all of which  together  shall
constitute one and the same instrument.

     7.06 This Escrow  Agreement shall remain in full force and effect until the
later of the Termination  Date or the date the Escrow Agent shall have delivered
all of the Escrowed  Property in its  possession  in  accordance  with the terms
hereof.

     7.07 Article headings  contained herein are for reference purposes only and
shall  not in any way  affect  the  meaning  or  interpretation  of this  Escrow
Agreement.

     IN WITNESS  WHEREOF,  this  Escrow  Agreement  has been duly  executed  and
delivered by Allegro,  Serif,  the Stockholders and the Escrow Agent on the date
first above written.


                                    ALLEGRO NEW MEDIA, INC.

                                    By: /s/Barry A. Cinnamon
                                           Barry A. Cinnamon
                                           Chairman of the Board


                                    SERIF INC.

                                    By: /s/Gwyn Jones
                                           Gwyn Jones, President


<PAGE>


                                         STOCKHOLDERS:
Number of
Exchanged Shares                              Name



67,377                                   /s/Gwyn Jones
                                         Gwyn Jones


4,090                                    /s/Ingrid L. Regen
                                         Ingrid Regen


2,000                                    /s/Norman Alexander-Attorney-in-Fact
                                         Norman Alexander


2,000                                   /s/Michael LaRocque
                                        Michael LaRocque


2,000                                   /s/Joseph Ossai
                                        Joseph Ossai


1,000                                   /s/Leo Belodeau
                                        Leo Belodeau


1,000                                   /s/Michael A. Clough
                                        Michael Clough


1,334                                   /s/David Garreth Howe-Attorney-in-Fact
                                        David Garreth Howe

1,000                                   /s/John L. Jackson, Jr.
                                        John L. Jackson, Jr.

                                       STOCKHOLDERS'
                                       REPRESENTATIVE:

                                       /s/Gwyn Jones
                                       Gwyn Jones

                                       ESCROW AGENT:

                                       Blau, Kramer, Wactlar & Lieberman, P.C.

                                       By:/s/Neil M. Kaufman







                                ESCROW AGREEMENT


     ESCROW AGREEMENT,  dated as of July 31, 1996 (the "Escrow  Agreement"),  by
and among ALLEGRO NEW MEDIA,  INC., a Delaware  corporation  ("Allegro"),  SERIF
(EUROPE) LIMITED,  an English Company with registered number 02117968 ("Serif"),
THE PERSONS WHOSE SIGNATURES APPEAR ON THE SIGNATURE PAGE HEREOF  (individually,
a "Stockholder" and collectively,  the "Stockholders"),  being the owners of all
the  issued  and   outstanding   capital   stock  of  Serif,   GWYN  JONES  (the
"Stockholders' Representative"), and BLAU, KRAMER, WACTLAR & LIEBERMAN, P.C., as
escrow agent (the "Escrow Agent").

                              W I T N E S S E T H:


     WHEREAS, Allegro, Serif and the Stockholders have entered into an Agreement
and Plan of Reorganization (the "Reorganization Agreement") dated as of July 31,
1996,  providing for, among other things,  the exchange by the  Stockholders and
Allegro of all the  outstanding  capital  stock of Serif  (other than the shares
held by Serif Inc.) for 754,597 shares of the common stock,  par value $.001 per
share, of Allegro (the "Exchange Stock"); and

     WHEREAS, Section 3.3 of the Reorganization Agreement requires that Allegro,
Serif and the  Stockholders  agree to enter into this Escrow  Agreement with the
Escrow  Agent for the  purpose of  securing  the  indemnity  obligations  of the
Stockholders under Section 11 of the Reorganization Agreement;

     NOW, THEREFORE, in consideration of the mutual covenants and agreements set
forth herein,  Allegro,  Serif, the Stockholders and the Escrow Agent agree that
all  capitalized  terms used herein  without  definition  shall have the meaning
ascribed to them in the Reorganization Agreement and further agree as follows:

ARTICLE I.  ESCROWED PROPERTY

     1.01 Each of the  Stockholders  has this day  delivered to the Escrow Agent
that number of Exchange  Shares set forth next to his signature on the signature
page  hereof,  which  Exchange  Shares  aggregate  252,864  shares  (hereinafter
referred to collectively as the "Escrowed Property").

     1.02 The Escrow Agent acknowledges  receipt of negotiable  certificates for
the Escrowed Property issued in the names of each of the Stockholders with blank
stock powers  attached  properly  executed by the  Stockholders,  and the Escrow
Agent  agrees  to  hold or  dispose  of the  Escrowed  Property  and  any  other
collateral in accordance with the terms of this Escrow Agreement.

     1.03 All dividends and other distributions  (whether of cash, securities or
other  property)  upon or in respect  of any of the  Escrowed  Property  and all
property  receivable in substitution or exchange therefor shall be included with
and constitute part of the Escrowed Property.


<PAGE>

ARTICLE II.    APPLICATION OF ESCROWED PROPERTY

     2.01 The Escrow  Agent will hold the  Escrowed  Property in its  possession
under the  provisions of this Escrow  Agreement  until  authorized  hereunder to
deliver the Escrowed  Property or any specified  portion thereof as set forth in
Section 2.02 or Section 2.03.

     2.02 The Escrow Agent shall  distribute  the amounts  deposited as Escrowed
Property  promptly upon  delivery of and in accordance  with (i) a joint written
notice of Allegro and the Stockholders'  Representative  providing  instructions
therein or (ii) written notice of Allegro and the  Stockholders'  Representative
providing  instructions  therein and certifying that the dispute with respect to
any  amount or amounts  deposited  in the  escrow  provided  for herein has been
determined and resolved by entry of a final order, decree or judgment by a court
of  competent  jurisdiction  in the  State of New  York  (the  time  for  appeal
therefrom  having  expired and no appeal having been  perfected),  or consent to
entry of any judgment concerning a claim, which notice shall be accompanied by a
copy of any such order, decree or judgment certified by the clerk of such court.

     2.03 In the event that prior to May 1, 1998 (the "Termination  Date"),  the
Escrow  Agent  has not  received  notice of a claim  for  indemnification  under
Section 11 of the  Reorganization  Agreement  which  remains  unresolved  on the
Termination Date, the Escrow Agent shall distribute the Escrowed Property to the
Stockholders'  Representative or as he otherwise  directs.  In the event that on
the Termination  Date there exists an unresolved  claim,  then in such event the
Escrow Agent shall  reserve  from the  Escrowed  Property an amount equal to the
amount of the claim,  as determined in accordance with the provisions of Article
IV hereof, and shall distribute any remaining balance.


ARTICLE III.   RELATED PROVISIONS

     3.01 Upon the release and delivery of any amount of the  Escrowed  Property
to any party  pursuant to this  Escrow  Agreement,  the Escrow  Agent shall also
release and deliver to such party the pro rata  portion of the  interest,  other
income or property so  released,  up to the date of such  release and  delivery,
attributable  to such amount of the  Escrowed  Property  being so  released  and
delivered.

     3.02 In connection with the delivery of written notices to the Escrow Agent
by Allegro, the Stockholders'  Representative,  or both such parties,  each such
written  notice  shall be signed by an officer  of Allegro or the  Stockholders'
Representative,  or both, as appropriate, and shall accurately set forth in each
case:

            (a)  the total amount that the Escrow Agent is thereby directed to
      distribute out of the Escrowed Property;

            (b)  the party to whom, or the fund to which, the Escrow Agent is
      thereby directed to distribute such amount; and


<PAGE>

            (c) the date upon which the Escrow  Agent is directed to distribute
      such   amount;   and  such   officer  of  Allegro  or  the  Stockholders'
      Representative,  or  both,  as the case may be,  shall certify  as to the
      compliance with such notice and the contents thereof.

The Escrow Agent may rely fully on the provisions set forth in any such written
notice which on its face  complies  with the provisions  of Article II and this
Section 3.02.

ARTICLE IV.    SETTLEMENT OF DISPUTES

     4.01 Any dispute  which may arise  between  Allegro  and the  Stockholders'
Representative  under this Escrow  Agreement  with respect to (a) the  delivery,
ownership  and/or right to  possession  of the Escrowed  Property or any portion
thereof,  (b) the facts upon which the Escrow Agent's  determinations  hereunder
are  based,  (c) the  duties of the  Escrow  Agent  hereunder  and (d) any other
questions arising under this Escrow Agreement,  shall be settled either by (i) a
joint written notice of Allegro and the Stockholders'  Representative  providing
instructions  to the Escrow  Agent  therein  or (ii) by entry of a final  order,
decree or judgment by a court of competent jurisdiction in the State of New York
(the  time for  appeal  therefrom  having  expired  and no  appeal  having  been
perfected).

     4.02 The Escrow  Agent  shall be under no duty to  institute  or defend any
such proceedings and none of the costs and expenses of any such proceeding shall
be borne by the  Escrow  Agent.  In the  event the  terms of a  settlement  of a
dispute  hereunder  increase  the  duties or  liabilities  of the  Escrow  Agent
hereunder and the Escrow Agent has not  participated in such settlement so as to
be bound thereby, then such settlement shall be effective as to the Escrow Agent
in respect of such  increase in its duties or  liabilities  only upon the Escrow
Agent's  written  assent  thereto.  Prior to the  settlement  of any disputes as
provided in this  Article IV, the Escrow  Agent is  authorized  and  directed to
retain in its  possession,  without  liability  to anyone,  such  portion of the
Escrowed Property which is the subject of or involved in the dispute.

ARTICLE V.     CONCERNING THE ESCROW AGENT.

     5.01 The Escrow Agent shall be entitled to reasonable  compensation for its
services  hereunder  and  shall  be  reimbursed  for  all  reasonable  expenses,
disbursements and advances (including  reasonable  attorneys' fees and expenses)
incurred or made by it in performance of its duties  hereunder.  Such reasonable
compensation,  disbursement,  expenses  and advances  shall be borne  equally by
Allegro and the  Stockholders'  Representative  and shall be paid  promptly upon
request by the Escrow Agent.

     5.02 The  Escrow  Agent  may  resign  and be  discharged  from  its  duties
hereunder  at any time by  giving  notice of such  resignation  to  Allegro  and
Stockholders'  Representative specifying a date (not less than 30 days after the
giving of such notice) when such resignation  shall take effect.  Promptly after
such  notice,  Allegro  and the  Stockholders'  Representative  shall  appoint a
mutually agreeable successor Escrow Agent, such successor Escrow Agent to become
Escrow Agent  hereunder upon the resignation  date specified in such notice.  If
Allegro  and  the  Stockholders'  Representative  are  unable  to  agree  upon a
successor  Escrow Agent with 30 days after such  notice,  the Escrow Agent shall
have the  right to  petition  a court of  competent  jurisdiction  to  appoint a
successor,  and the Escrow  Agent shall  continue  to serve until its  successor
accepts the escrow and receives the Escrowed Property.


<PAGE>

     5.03 The  Escrow  Agent  undertakes  to  perform  only  such  duties as are
specifically set forth herein. The Escrow Agent acting or refraining from acting
in good faith  shall not be liable for any  mistake of fact or error of judgment
by it or for any acts or  omissions  by it of any kind  unless  caused  by gross
negligence or willful  misconduct,  and shall be entitled to rely,  and shall be
protected  in doing so, upon (a) any written  notice,  instrument  or  signature
believed by it to be genuine and to have been signed or  presented by the proper
party or parties duly  authorized to do so, and (b) the advice of counsel (which
may be of the  Escrow  Agent's  own  choosing,  so long as such  counsel  is not
counsel to Allegro or the Stockholders' Representative).  The Escrow Agent shall
have no responsibility for the contents of any writing submitted to it hereunder
and shall be  entitled  in good faith to rely  without  any  liability  upon the
contents thereof.  The Escrow Agent has no responsibilities  under, and shall be
deemed to have no knowledge of, the provisions of the Reorganization Agreement.

     5.04 Allegro and the  Stockholders  agree to indemnify the Escrow Agent and
hold it harmless  against any and all liabilities  incurred by it hereunder as a
consequence  of  such  indemnifying  party's  action  and  the  Allegro  and the
Stockholders  further  agree to indemnify  the Escrow Agent and hold it harmless
against  any and all losses,  costs,  fees and  expenses  incurred by the Escrow
Agent which are not a consequence of its actions or failure to act,  except,  in
either case for liabilities  incurred by the Escrow Agent resulting from its own
gross  negligence  or  willful  misconduct.  One-half  of the amount of any such
payment or indemnification  shall be paid to the Escrow Agent by Allegro and the
other half of the amount of any such payment or indemnification shall be paid by
the Stockholders.  The  indemnification  provided pursuant to this section shall
survive the  resignation  of the Escrow Agent or the  termination of this Escrow
Agreement.

     5.05 In the event the Escrow Agent  becomes  involved in any  litigation or
dispute by reason hereof, it is hereby authorized to deposit with the clerk of a
court of competent jurisdiction the Escrowed Property held by it pursuant hereto
and, thereupon,  shall stand fully relieved and discharged of any further duties
hereunder.  Also, in the event the Escrow Agent is threatened with litigation by
reason hereof, it is hereby  authorized to interplead all interested  parties in
any court of competent  jurisdiction and to deposit with the clerk of such court
the Escrowed  Property held by it pursuant  hereto and,  thereupon,  shall stand
fully relieved and discharged of any further duties hereunder.

     5.06 In the  event of any  claim,  dispute  or  litigation  concerning  the
Reorganization  Agreement  or this Escrow  Agreement,  Blau,  Kramer,  Wactlar &
Lieberman,  P.C.  shall  nevertheless  have the  unqualified  right to represent
Allegro,  its  officers and  directors in respect of any such claim,  dispute or
litigation, notwithstanding that it is acting as Escrow Agent hereunder.

ARTICLE VI.    STOCKHOLDERS' REPRESENTATIVE

     6.01 The  Stockholders,  and each of them,  hereby  appoint Gwyn Jones (the
"Stockholders'  Representative")  as their agent to (i) execute and deliver this
Escrow Agreement on behalf of the Stockholders and to represent,  act for and on
behalf of, and bind each of the  Stockholders in the performance of all of their
obligations  arising  from or  relating  to this  Escrow  Agreement,  including,
without  limitation (a) the execution and delivery of any document,  certificate
or  agreement  required  under this  Escrow  Agreement  to be  delivered  by the
Stockholders; (b) the negotiation and settlement of claims of Allegro in respect
of the Escrowed Property and for  indemnification  pursuant to Section 11 of the

<PAGE>

Reorganization Agreement and the making of any objection to such claims; and (c)
the  representation  of the  Stockholders  at any  arbitration  or litigation in
respect of the foregoing;  (ii) give and receive  notices and receive service of
process under or pursuant to this Escrow Agreement;  and (iii) to represent, act
for,  and  bind  each of the  Stockholders  in the  performance  of all of their
obligations   arising  from  or  related  to  this  Escrow   Agreement  and  the
indemnification  provisions of Section 11 of the Reorganization  Agreement.  The
Stockholders' Representative hereby accepts such appointment.

     6.02 In the event that the Stockholders'  Representative  shall die, become
incapacitated,  resign or otherwise by unable to fulfill his duties hereunder, a
successor  Stockholders'  Representative  shall be selected by the  Stockholders
receiving a majority of the Escrowed Property as soon as reasonably  practicable
thereafter.  If the Stockholders  desire to remove or replace the  Stockholders'
Representative for any reason,  any such Stockholders'  Representative may be so
removed or  replaced by the  Stockholders  entitled to receive a majority of the
Escrowed   Property.   Any  decision,   act,   consent  or  instruction  of  the
Stockholders' Representative shall constitute a decision of the Stockholders and
shall be  conclusive  and  binding  upon the  Stockholders,  and Allegro and the
Escrow Agent may rely upon any such decision, act, consent or instruction of the
Stockholders'  Representative as being the decision, act, consent or instruction
of the Stockholders.

ARTICLE VII.   MISCELLANEOUS

     7.01 This Escrow  Agreement will be binding upon,  inure to the benefit of,
and be  enforceable  by the  respective  successors  and  assigns of the parties
hereto,  but neither this Escrow Agreement,  nor any of the rights,  interest or
obligations hereunder shall be assigned by any of the parties hereto without the
prior written  consent of the other  parties,  except with respect to the Escrow
Agent as provided in Article V hereof.

     7.02 This Escrow Agreement contains the entire understanding of the parties
with  respect  to this  subject  matter,  and may be  amended  only by a written
instrument duly executed by Allegro, Serif and the Stockholders' Representative.

     7.03 All notices,  consents,  requests,  instructions,  approvals and other
communications  provided for herein and all legal process in regard hereto shall
be validly given, made or served, if in writing and delivered personally or sent
by registered or certified mail (return  receipt  requested),  postage  prepaid,
recognized  national or international  air courier or by facsimile  transmission
electronically confirmed:

      if to Allegro:

            Allegro New Media, Inc.
            16 Passaic Avenue
            Fairfield, New Jersey 07006
            Fax: (201) 808-2645
            Attn.: Barry A. Cinnamon
                  Chairman of the Board


<PAGE>


      with a copy to:

            Neil M. Kaufman, Esq.
            Blau, Kramer, Wactlar & Lieberman, P.C.
            100 Jericho Quadrangle
            Jericho, New York ll753
            Fax: (516) 822-4824

      if to Serif, the Stockholders, or the Stockholders'
      Representative, to the Stockholder's Representative:

            Gwyn Jones
            Serif Inc.
            One Chestnut Street
            Suite 305
            Nashu, New Hampshire 03060

      with a copy to:

            Austin J.  Moore, Esq.
            Eking Manning
            44 The Ropewalk
            Nottingham NG1 5EL
            Fax: (011) 44-115-953-2533

      if to the Escrow Agent:

            Blau, Kramer, Wactlar & Lieberman, P.C.
            100 Jericho Quadrangle
            Jericho, New York ll753
            Fax: (516) 822-4824
            Attn.:  Neil M. Kaufman, Esq.

or, in each case, at such other address as may be specified in writing to the
other parties.

     7.04 This Escrow Agreement shall be governed by, and construed and enforced
in  accordance  with the laws of the  State of New York,  without  regard to its
conflicts of law rules.

     7.05 This Escrow Agreement may be executed  simultaneously in counterparts,
each of which  shall be  deemed  an  original  but all of which  together  shall
constitute one and the same instrument.

     7.06 This Escrow  Agreement shall remain in full force and effect until the
later of May 1, 1998 or the date the Escrow  Agent shall have  delivered  all of
the Escrowed Property in its possession in accordance with the terms hereof.

     7.07 Article headings  contained herein are for reference purposes only and
shall  not in any way  affect  the  meaning  or  interpretation  of this  Escrow
Agreement.


<PAGE>

      IN WITNESS  WHEREOF,  this Escrow  Agreement  has been duly  executed  and
delivered by Allegro,  Serif,  the Stockholders and the Escrow Agent on the date
first above written.


                                         ALLEGRO NEW MEDIA, INC.

                                         By: /s/Barry A.  Cinnamon
                                                Barry A. Cinnamon
                                                Chairman of the Board

                                         SERIF INC.

                                         By:/s/Gwyn Jones
                                                Gwyn Jones, President

                                         STOCKHOLDERS'
                                         REPRESENTATIVE:

                                         /s/Gwyn Jones
                                         Gwyn Jones

                                         ESCROW AGENT:

                                         Blau, Kramer, Wactlar & Lieberman, P.C.


                                         By:/s/Neil M.  Kaufman

Number of
Exchanged Shares                       STOCKHOLDER

89,223                                 /s/Gwyn Jones
                                       Gwyn Jones

20,637                                 /s/Norman Alexander-Attorney-in-Fact
                                       Norman Alexander

8,750                                  /s/Jim Bryce-Attorney-in-Fact
                                       Jim Bryce

17,092                                 /s/Peter Beedham
                                       Peter Beedham

11,647                                 /s/Ralf Mellor-Attorney-in-Fact
                                       Ralf Mellor

8,750                                  /s/Espirit Automations-Attorney-in-Fact
                                       Esprit Automations



<PAGE>

4,128                                  /s/Mark Gee-Attorney-in-Fact
                                       Mark Gee

3,440                                  /s/Robert O'Mara-Attorney-in-Fact
                                       Robert O'Mara

1,376                                  /s/Darren Darvill-Attorney-in-Fact
                                       Darren Darvill

1,376                                  /s/Mark Ramsey-Attorney-in-Fact
                                       Mark Ramsey

1,376                                  /s/Mark Daintree-Attorney-in-Fact
                                       Mark Daintree

894                                    /s/David Brailsford-Attorney-in-Fact
                                       David Brailsford

5,847                                  /s/David Harrris-Attorney-in-Fact
                                       David Harris

7,712                                  /s/Robin Bryce-Attorney-in-Fact
                                       Robin Bryce

7,712                                  /s/Wallace Bryce-Attorney-in-Fact
                                       Wallace Bryce

61,570
                                       Serif (Europe) Trustees Limited

                                       /s/Barry A.  Cinnamon
                                       Barry A.  Cinnamon
                                       Co-Trustee of the Serif (Europe) Limited
                                       Employee Share Option Scheme
















                           Dated as of July 31, 1996

                           (1) SERIF (EUROPE) LIMITED

                                     - and -

                      (2) BARRY CINNAMON and MARK LEININGER



                             TRUST DEED establishing

                          "The Serif (Europe) Employee
                             Share Ownership Trust"












                            Travers Smith Braithwaite
                                  10 Snow Hill
                                 London EC1A 2AL

                               Tel: 0171-248 9133



<PAGE>

THIS DEED is made on                                   1996

BETWEEN:-

(1)  SERIF (EUROPE) LIMITED ("Serif") whose registered office is  at  1
Loughborough Road, West Bridgford, Nottingham NG2 7LJ

(2)  MARK LEININGER of 27 Liberty Street, Ridgewood, New Jersey and BARRY 
CINNAMON of 25 Oldchester Road, Essex Falls, New Jersey (together "the 
Original Trustees")

WHEREAS:-

(A) Serif wishes to establish  this Trust as an  employees' share scheme within
the meaning of section 743 of the Companies Act 1985 for encouraging the holding
of shares in Serif by  employees of Serif and its  subsidiaries  with a view to
facilitating the recruitment retention and motivation of employees of Serif and
its subsidiaries

(B)  Serif  has  transferred  the sum of $5.00  into  the  name of the  Original
Trustees for the like  purposes  and Serif and other  persons  may for the like
purposes from time to time pay transfer or place further property into the name
or under the control of the Trustees

(C)  It is contemplated that the Original Trustees will acquire shares in Serif

(D) It is  contemplated  that Serif will  provide financial  assistance  to the
Trustees for the  purposes of the Trust as permitted  by section  153(4) of the
Companies Act 1985

NOW THIS DEED WITNESSES as follows:-


<PAGE>


1.    Name of Trust

This Trust shall be known as "The Serif (Europe) Employee Share Ownership Trust"
or by such other name as the  Trustees shall from time to time  consider  to be
appropriate

2.    Definitions and interpretation

In this Deed:-

(1)   "the Beneficiaries" means the Employees and former Employees from time to
      time and the wives husbands widows widowers and children and step-children
      under the age of eighteen of such Employees or former  Employees  and for
      the  purposes  of  establishing  whether  or  not  any  individual  is  a
      Beneficiary  the Trustee may rely on any information  provided to them by
      the Company

(2)   "the  Committee"  means the  member or members  for the time being of the
      committee (if any) constituted in accordance with clause 17

(3)   "the Company" means Serif or any successor corporation of that company in
      circumstances in which  substantially the whole of the undertaking assets
      and  liabilities  of Serif  pass to the  successor  corporation and it is
      specified  as  such  in a deed  executed  by  Serif  the  Trustee and the
      successor corporation

(4)   "the Companies Act 1985" means the Companies Act 1985

(5)   "deed" means any instrument in writing

(6)   "Employee" means a bona fide employee of any member of the Company and 
      any Subsidiary or the holding company of the Company

(7)   "Shares" means fully paid  ordinary  shares in the capital of the Company
      (or such other  shares  as may  represent  the  same as a  result  of any
      reorganisation reconstruction or other variation of the Company) and shall
      be  deemed to include  any  shares  issued  by way of  capitalisation  of
      reserves (including any share premium account and any capital  redemption
      reserve fund) directly or indirectly in right of such Shares

(8)   "Subsidiary" means a company  which is both subject to the control of the
      Company  within the  meaning  of  section  840 of  the  Taxes  Act  and a
      subsidiary  of the Company  within  the  meaning  of  section  736 of the
      Companies Act 1985.

(9)   "the Taxes Act" means the Income and Corporation Taxes Act 1988

(10)  "trust" means any trust created by any  settlement  declaration  of trust
      will or codicil or other instrument under the law in force in any part of
      the world

(11)  "the Trustee" means the Original Trustees or the trustees or trustee duly
      appointed from time to time under this Deed


<PAGE>


(12)  "the Trust Fund" means the  property specified in Schedule 1 all property
      at any time added to this Deed by way of further settlement  accumulation
      of income  capital  accretion or by any other means and all property from
      time to time representing the same

(13)  "the Trust Period" means the period ending on the earlier of:-

      (a)  the last day of the period of twenty years from the date of this Deed
           which period (and no other) shall be the perpetuity period applicable
           to this Deed

      (b)  such date as the Trustee  shall by deed  specify (not being  earlier
           than the date of such  deed) and so that the Trustee  may  specify a
           date  in  respect  of  part  only of the  Trust Fund  and may at any
           subsequent time or times specify another date or dates in respect of
           other parts or the whole of the residue of the Trust Fund

(14)  "employees" "bona fide employees" "wives" "husbands"  "widows" "widowers"
      "children"  and  "step-children"  have the same meanings as those used in
      section 743 of the Companies Act 1985

(15)  "associated  company" means a company which is associated with the Company
      within the meaning of section 416(1) of the Taxes Act

(16)  "person" includes a corporation

(17)  "persons beneficially interested in this Deed" includes the Beneficiaries

(18)  a person  shall be deemed to be  interested in a trust if any  capital or
      income  comprised  in  the  trust is or  may  become  liable  to be  paid
      transferred applied or appointed to him or for his benefit either pursuant
      to the terms of the trust or in consequence of an exercise of any power or
      discretion conferred thereby on any person

(19)  words  importing  one gender shall (where  appropriate) include any other
      gender and words importing the singular shall (where appropriate) include
      the plural and vice versa

(20)  references to any statute or statutory instrument or to any part or parts
      thereof include any modification amendment or re-enactment thereof for the
      time being in force

(21)  references to any deed agreement document or instrument  (including  this
      Deed) shall be construed as references to that deed agreement document or
      instrument as from time to time amended supplemented or varied

3.    Employees' share scheme

The Trust shall be an employees' share scheme of the Company within the meaning
of section 743 of the Companies Act 1985


<PAGE>


4.    Trust for sale

The  Trustee  shall  hold the Trust Fund upon  trust as to  investments  or
property  other than  money to sell call in or convert  into money all or any of
such  investments or property but with power to postpone such sale calling in or
conversion  and to permit  the same to remain as  invested  and upon trust as to
money at their  discretion  to  invest  the same in their  names or under  their
control in any of the  investments  authorised by this Deed or by law with power
at their  discretion from time to time to vary or transpose any such investments
for others so authorised

5.    Power of appointment

(1)   The Trustee  shall hold the Trust Fund and any income  thereof  upon such
      trusts and with and  subject to such  charges  powers and  provisions  in
      favour or for the  benefit  of all or any one or more exclusively  of the
      others  or  other  of  the  Beneficiaries  as  the Trustee  shall  in its
      discretion  at any time or times  during  the Trust Period by any deed or
      deeds  revocable  or  irrevocable  appoint  (regard being  had to the law
      relating to remoteness and perpetuities) and in any such deed or deeds the
      Trustee may:-

      (a)  direct  that the  Trust  Fund or any part or parts thereof  shall be
           transferred  to or paid to or held by any two or more persons in any
           part of the world as trustees thereof (whose receipt shall be a good
           discharge to any other trustee)

      (b)  rovide for the appointment or remuneration of trustees on any terms
           and conditions 

      (c)  direct or authorise the investment in any manner of the Trust Fund
           or any part or parts thereof by or at the discretion of any person

      (d)  create protective or discretionary trusts or powers operative or
           exercisable at the discretion of any person

      (e)  confer upon the Trustee  or any  other  person  or  persons  powers
           exercisable over  capital  or  income   (including   powers  of  an
           administrative  character  or   concerning   the   appointment   or
           remuneration  of trustees and whether or not the Trustee on the same
           occasion appoints any new or varied beneficial trusts in relation to
           the Trust Fund or any part thereof)

      (f)  direct or authorise accumulation of income during such period or
           periods as the law may allow

      (g)  delegate in any manner and to any extent to any person the exercise
           at any time or times within the Trust Period of this power of
           appointment

      (h)  generally make or confer in favour or for the  benefit of all or any
           of the objects of this power of  appointment  all such  dispositions
           charges or powers of or in  relation to the Trust Fund and the income
           thereof or any part or parts  thereof  respectively  as an  absolute
           owner could lawfully  make of or confer in relation to any  property
           belonging to him beneficially (regard being had to the law relating
           to remoteness and perpetuities)

<PAGE>


(2)        Without prejudice  to the  generality  of the  powers  conferred  by
           sub-clause (1) the Trustee may in  exercise of those  powers  direct
           that the whole or any part or parts of the  capital of the Trust Fund
           shall be paid or transferred to the trustee for the time being of any
           trust  established or existing in any part of the world under which
           any one or more of the Beneficiaries  are interested and under which
           no  person  who  is not a  Beneficiary  is  would  or  might  become
           beneficiaries  or able to benefit  under or by virtue of such  other
           trust in any circumstances if the Trustee  considers such payment or
           transfer  to be  for  the  benefit  of  such  one  or  more  of  the
           Beneficiaries

(3)        No exercise of the powers conferred by this clause shall invalidate 
           any prior payment or application of the Trust Fund or the income  
           thereof or any parts or part thereof respectively made under any 
           other power conferred by this Deed or by law

6.    Discretionary trusts of capital and income in default of appointment

In default of and until and  subject to any and every  appointment  made in
exercise of the powers  conferred by clause 5 the Trustee shall during the Trust
Period  pay or apply  the  income  of the  Trust  Fund and may pay or apply  the
capital  of the  Trust  Fund  to or for  the  benefit  of all or any one or more
exclusively  of the others or other of the  Beneficiaries  for the time being in
existence  in such  shares in such manner and on such terms and  conditions  (if
any) as the Trustee shall from time to time think fit PROVIDED that:-

(1)   no such payment or application  shall give the Beneficiary to whom or for
      whose benefit it is made any right to enjoy any future income of the Trust
      Fund or to the capital of the Trust Fund

(2)   the  Trustee may pay any capital or income to any person to be applied 
      for any purposes hereby authorised without itself being bound to see to
      the actual application thereof and may delegate to any  person and to any
      extent the exercise of the discretionary trust contained in this clause

(3)   the Trustee may (notwithstanding the discretionary trust contained in 
      this clause) during the Trust Period if it thinks fit from  time to time
      accumulate  the  whole  or any part of the  income  of the  Trust Fund by
      investing  the  same  and  the  resulting  income  thereof in any  manner
      authorised by this Deed and adding the accumulations to the capital of 
      the Trust Fund

7.    Default trust

In default of and subject to any and every exercise of the powers conferred
by the preceding  clauses the Trust Fund and the income thereof shall at the end
of the Trust  Period be held UPON  TRUST for such of the  Employees  as shall be
living at the end of the Trust Period and if more than one in equal shares

8.    Ultimate default trust

(1) Subject to all the trusts powers and provisions of this Deed and if and
so far as (for any reason) not wholly disposed of thereby the Trust Fund and the
income  thereof shall be held UPON TRUST for Save the Children Fund  (registered
charity No. 213890)


<PAGE>

(2) The  receipt of the person who  purports to be the  treasurer  or other
duly authorised officer of Save the Children Fund for any payment or application
of the Trust Fund or the income  thereof made by the Trustee in accordance  with
this  clause  shall be a  complete  discharge  to the  Trustee  who shall not be
concerned as to the further application of such capital or income

9.    Acquisition and Disposal of Shares

(1) The  Trustee  may apply such part of the Trust Fund as it thinks fit in
the purchase or  acquisition of Shares but in the event that the Committee is in
existence at the time it shall only do so after consultation with the Committee

2) The  Trustee  may sell any Share for the time  being  comprised  in the
Trust Fund to any Beneficiary at such price as it thinks fit

(3) If the Committee is in existence at the time the Trustee shall not sell
mortgage charge pledge grant options over or otherwise dispose of Shares for the
time  being  comprised  in the Trust  Fund  without  previously  consulting  the
Committee  provided  that if the  Committee  were  consulted  on the grant of an
option or other award  relating to Shares to a Beneficiary  the Trustee need not
consult the Committee  prior to  transferring  the Shares in satisfaction of the
option or other award

10.   Awards and Options

(1) The Trustee may  acquire  Shares from or transfer  Shares to any of the
Beneficiaries or hold Shares on behalf of any Beneficiary after consideration of
the recommendations of the Committee with regard to Beneficiaries

(2) The Trustee may grant options to any of the  Beneficiaries  to purchase
any  property  comprised in the Trust Fund on such terms and  conditions  as the
Trustee thinks fit

(3) The Trustee may agree with the Company that if the Company shall at any
time by notice in writing direct the Trustee to transfer to any  Beneficiary any
number of shares in respect of which such  Beneficiary  shall have  exercised an
option granted under a share option scheme adopted by such member of the Company
in consideration of the payment to the Trustee of the price at which such shares
may be acquired by the  exercise of such option the Trustee  will (to the extent
that  such  shares  shall be  comprised  in the  Trust  Fund)  transfer  to such
Beneficiary  such shares in  consideration of the payment to the Trustee of such
price

11.   Waiver of dividends

The Trustee shall waive or otherwise  forgo any dividends to be paid at any
time on any  Shares  for the time  being  comprised  in the Trust  Fund (and any
shares  replacing them following an exchange of shares on the acquisition of the
Company)  if the rate at which such  dividend  is to be paid is more than 0.001p
per share unless and to the extent that the Trustee is otherwise directed by the
Company

12.   Recommendations of the Committee

The Trustee may  consider but shall be under no  obligation  to comply with
any recommendation  made to it by the Committee about the way in which it should

<PAGE>

exercise any power  authority or  discretion  conferred on it by this Deed or by
law if the Trustee is not  required by any  provision of this Deed to obtain the
written consent of the Committee before exercising it

13.   Administrative provisions

The Trustee shall in addition and without prejudice to all statutory powers
authorities  discretions and immunities have the powers authorities  discretions
and immunities set out in Schedule 2

14.   Indemnity from the Company

The Company hereby covenants that it will at all times keep the Trustee and
each of them and their respective  personal  representatives and estates and the
members  of the  Committee  and  each  of them  and  their  respective  personal
representatives  and estates saved  harmless and  indemnified  against any costs
expenses or liabilities  whatever for which they shall as trustees  hereof or as
members of the Committee be or become liable by virtue of any act omission event
or  thing  whatever   unless  such  costs  expenses  or  liabilities   shall  be
attributable to the fraud,  wilful misconduct or gross negligence of the Trustee
or of the member of the Committee  whom it is sought to make liable save in each
such case to the extent that the Trustee is authorised by this Deed or by law to
discharge  such costs  expenses or  liability  from the capital or income of the
Trust Fund

15.   Number of Trustees and appointment and removal of Trustee

(1) The  minimum  number  of  Trustees  of this Deed (or of any part of the
Trust Fund in respect of which a separate  set of trustees  has been  appointed)
shall be:-

      (a)  a corporate trustee resident in any part of the world; or

      (b)  two individuals

(2) If the number of  Trustees  is  reduced  below the  minimum  number the
surviving  or  continuing  Trustee  may  exercise  the  powers  authorities  and
discretions  conferred  hereby  or by law on the  Trustee  with the  consent  in
writing  of  the  Committee  (if  it be in  existence  at the  time)  until  the
appointment of an additional trustee or additional  trustees to act jointly with
such surviving or continuing Trustee

(3) The  statutory  power  of  appointing  new or  additional  trustees  as
modified by this clause shall apply to this Deed and shall be exercisable by the
Company but if the  Committee  is in existence at the time may only be exercised
with the consent in writing of the Committee

(4) The statutory  power of appointing new or additional  trustees shall be
modified as follows:-

      (a)  where new or additional  trustees are appointed for the whole or any
           part of the Trust Fund the new or additional trustees may include any
           person notwithstanding  that such person may be  resident  domiciled
           carrying on business or (if a body  corporate) incorporated  outside
           the United Kingdom


<PAGE>

      (b)  the statutory   power  of  appointing  new  trustees  shall  not  be
           exercisable  by reason only that a trustee  remains out of the United
           Kingdom for more than twelve months

      (c)  the statutory  power  of  appointing  additional  trustees  shall be
           exercisable  notwithstanding  that one of the  trustees  for the time
           being is a trust corporation

(5) The  Company  may by deed  remove any person from the office of Trustee
but in the event that the Committee is in existence at the time it shall only do
so with the  consent  in writing of the  Committee  provided  that if after such
removal  there  would be less than the minimum  number of  Trustees  the Company
shall at the same time appoint an additional  trustee or additional  trustees in
accordance with sub-clauses (3) and (4)

16.   Trustees' proceedings

The  Trustees  (if  more  than  one) may meet  together  and may make  such
regulations for the conduct of their business as they think fit

17.   The Committee

(1) The first  member or  members of the  Committee  shall be the person or
persons nominated by notice in writing given by the Company to the Trustee

(2) Other  persons may become  members of the  Committee on  nomination  by
notice in writing to the Trustee and the Company of:-

      (a)  the member or if there shall be more than one member the majority 
           of the members for the time being of the Committee; or

      (b)  the Company if there shall be no such member or members

(3)  A person shall cease to be a member of the Committee:-

      (a)  if he gives not less than fourteen  days'  notice in  writing to the
           Company the other  members of the Committee  and the Trustee that he
           wishes to retire therefrom;

      (b)  immediately if he is asked in writing to resign by all the other
           members of the Committee;

      (c)  immediately if he becomes prohibited by law from being a director
           of any company;

      (d)  immediately if he becomes bankrupt or makes any arrangement or
           composition withhis creditors;

      (e)  immediately if he is or may be suffering from any mental disorder and
           an  order is made by a court  having  jurisdiction  (whether  in the
           Island of  Guernsey  or  elsewhere)  in  matters  concerning  mental
           disorder for his  detention  or the  appointment  of a receiver or a
           curator bonis or other  person to exercise  powers in respect of his
           property or his affairs


<PAGE>

(4) The Company and the members of the Committee shall promptly notify each
other  and the  Trustee  in  writing  of any  change  in the  membership  of the
Committee and the Trustee may rely on such notification without further enquiry

(5) Any  notice  required  to be  given  hereunder  by the  Trustee  to the
Committee  shall be given  to any  member  for the  time  being  thereof  at the
registered  office of the  Company or at such other  address as may from time to
time be notified in writing to the Trustee by the Committee

(6) Any notice given by the  Committee to the Trustee shall be given to the
Trustee at the address  specified at the beginning of this Deed or at such other
address as may from time to time be notified in writing to the  Committee by the
Trustee

(7) The members of the Committee shall be entitled to be remunerated by the
Trustee from the capital or income of the Trust Fund for the  services  provided
by them  hereunder at such rate as shall be  determined by the Trustee from time
to time

(8)  One person may constitute the Committee

(9) The  Committee  may make  such  regulations  for the  conduct  of their
business as they shall think fit

(10) The Trustee may rely without further enquiry on any certificate signed
by a  member  of the  Committee  as to the  decision  of the  Committee  and any
decision so certified shall be deemed to be validly made

(11) All acts done by the  Committee or by any person acting as a member of
the Committee shall notwithstanding that it be afterwards discovered there was a
defect in the  appointment of any member of the Committee or if any of them were
disqualified  from holding  office or had vacated office or were not entitled to
participate in making any decision of the Committee be as valid as if every such
person had been duly  appointed  and was  qualified  and had  continued  to be a
member of the  Committee  and had been  entitled to  participate  in making such
decision

18.   Proper law and administrative forum

(1) The proper law of this Deed shall be that of the  England and Wales and
all rights under this Deed and its  construction  and effect shall be subject to
the jurisdiction of and construed according to the law of the England and Wales

(2) The  courts  of the  England  and  Wales  shall  be the  forum  for the
administration of these trusts

(3) Notwithstanding the provisions of sub-clauses (1) and (2) but subject to
the provisions of sub-clause (4):-

      (b)  the Trustees may (regard being had to the law relating to remoteness)
           carry  on  the  general   administration   of  these  trusts  in  any
           jurisdiction in the world whether or not such jurisdiction is for the

<PAGE>

           time  being  the  proper  law of  this  Deed  or the  courts  of such
           jurisdiction are for the time being the forum for the  administration
           of these  trusts and  whether or not the  Trustees or any of them are
           for the time being  resident or domiciled  in or otherwise  connected
           with such jurisdiction

      (b)  the Trustees may at any time declare in writing that from the date of
           such  declaration  the  proper  law of this Deed shall be that of any
           specified  jurisdiction  (not being a  jurisdiction  under the law of
           which this Deed would be capable of  revocation)  and that all rights
           under this Deed and its  construction  and effect shall be subject to
           and construed according to the law of that jurisdiction

      (c)  the Trustees may at any time declare in writing from the date of such
           declaration the forum for the administration of these trusts shall be
           the courts of any specified jurisdiction

(4) The powers  conferred  on the Trustees by  sub-clause  (3) shall not be
exercisable if and in so far as such exercise would:-

      (a)  result in any change in the persons who are  beneficially  interested
           hereunder  or make it possible  for any person  thereafter  to become
           beneficially  interested hereunder who could not have done so but for
           the  declaration  or make it impossible  for any person  hereafter to
           become beneficially  interested  hereunder who could have done so but
           for the declaration or

      (b)  render any of the trusts powers or provisions of this Deed void for
           remoteness or any other reason

but otherwise shall have effect according to the exercise hereof

19.   Restrictions on powers

Notwithstanding  anything  contained  or  implied  in this Deed none of the
powers  authorities  or  discretions  conferred  by  this  Deed or by law on the
Trustee  or on any other  person  shall at any time or in any  circumstances  be
exercisable in any manner so as directly or indirectly:-

(1)   to cause any part of the  capital  or  income of the Trust  Fund to become
      payable or applicable for the benefit of any member of the Group or of any
      associated company or any of its subsidiaries or

(2)   to prevent this Trust from qualifying as an employees' share scheme within
      the meaning of section 743 of the  Companies Act 1985 or section 86 of the
      Inheritance Tax Act 1984 from applying to the trusts declared in this Deed
      from the date hereof

(3)   to authorise  the Trustee to carry on any activity  which is prohibited by
      the  Financial  Services  Act  1986  or  any  rules  or  regulations  made
      thereunder


<PAGE>

20.   Amendment

The  Company  and the  Trustee  may at any time from time to time by a deed
supplemental hereto modify or amend the provisions of this Deed provided that no
such purported amendment shall be effective if as a result:-

      (1)  this Trust would cease to be an  employees'  share scheme  within the
           definition contained in Section 743 of the Companies Act 1985; or

      (2)  this Trust would cease to be a trust which  satisfies the  conditions
           set out in Section 86 of the  Inheritance  Tax Act 1984  (trusts  for
           benefit of employees); or

      (3)  the trust period would extend beyond the perpetuity period specified
           in this Deed.

21.   Headings

The  headings  are  included  for  reference  only  and do not  affect  the
interpretation of this Deed

22.   Execution

This Deed may be executed in two or more parts or copies and  execution  by
each of the  parties by one or more such  parts or copies  will  constitute  due
execution of this Deed

IN WITNESS  whereof this document has been executed as a deed and delivered
on the day and year first above written

                                   SCHEDULE 1
                             The original Trust Fund

44,750 (forty-four thousand seven hundred and fifty pounds)

                                   SCHEDULE 2
                            Administrative Provisions

1.    Power of investment

(1) Any moneys to be invested may be applied in the purchase or acquisition
of such shares stock funds securities land buildings  chattels or other property
of whatever  nature and wherever  situate and whether  involving  liabilities or
producing income or not or in making such loans with or without such security as
the  Trustee  thinks fit so that the  Trustee  shall have the same powers in all
respects as if it were the absolute owner beneficially entitled

(2) The acquisition of any reversionary interest any policy of insurance of
whatever nature any annuity  security or other  investments not producing income
or of a wasting  nature (or for any other  reason not within the  meaning of the
word  "investment"  strictly  construed)  shall be  deemed  to be an  authorised
investment  of trust  moneys  if the  Trustee  considers  the same to be for the
benefit of any one or more of the persons beneficially interested in this Deed


<PAGE>

(3)  When  any  such  reversionary  interest  policy  annuity  security  or
investment as is described in  sub-paragraph  (2) or when any other  security or
investment is sold with the right to receive the dividend or interest accrued or
accruing no part of any  accretion to the value or of any premium bonus or other
sum which  accrues or is  payable  when the same  falls  into  possession  or is
redeemed or matures or on repayment of the capital moneys so secured or when any
sale or disposal is made shall be apportionable to or be treated as income

(4) The  Trustee  may  exchange  property  for other  property of a like or
different nature and for such consideration and on such conditions as they think
fit

2.    Power to enter into agreements

The  Trustees  may  enter  into  any  agreement  with  the  Company  or any
Subsidiary or any associated  company or any third party not connected  herewith
and may  enter  into  any  agreement  with  any  Beneficiary  as it shall in its
discretion determine.

3.    No requirement to diversify investments

The  Trustee  may invest the Trust Fund and keep it invested at any time in
the  Shares  whether  or not the  Shares  would  then be  regarded  as a  proper
investment  of the  Trust  Fund and  shall  not be  required  to  diversify  the
investment of the Trust Fund or be liable for the  consequences  of investing or
keeping the Trust Fund invested in or in the shares or  obligations  of a single
business company or firm or in one asset or in one type of asset

4.    No requirement to invest in income producing investments

No person beneficially interested in this Deed shall be entitled:-

(1)   to compel the sale or other realisation of any property which does not
      produce income

(2)   to require the distribution of any dividend by any company in which the
      Trust Fund or any part of it is invested

(3)   to require the Trustee to exercise any powers it may have of compelling
      such distribution

(4)   to insist on the investment of any part of the Trust Fund in property
      which produces income

5.    Power to lend

The Trustee may lend money or  property  forming  part of the Trust Fund to
any one or more of the persons beneficially  interested in this Deed either free
of  interest  or on such terms as to payment of interest  and  generally  as the
Trustee thinks fit

6.    Power to borrow

The  Trustee  may borrow  and raise  money  either  without  security  or on the
security  of the Trust  Fund or any part of it for any  purpose  (including  the
investment  of the moneys so raised as part of the Trust Fund) and may  mortgage

<PAGE>

charge or pledge the Trust Fund or any part of it as security  for any moneys so
raised and may decide  whether any interest  which may be payable as a result of
the  exercise  of this power  shall be paid out of the  capital or income of the
Trust Fund or such part of the Trust Fund and may guarantee the payment of money
and the performance of obligations in respect of borrowings by any company fully
or partly owned by the Trustee and in connection  with such guarantees may enter
into such indemnities and such mortgages charges or pledges of the Trust Fund or
any part of the Trust Fund as the Trustee thinks fit

7.    Power to give guarantees

The  Trustee may  guarantee  the  payment of money and the  performance  of
obligations  in  respect  of any  existing  or future  borrowings  by any person
beneficially   interested   in  this  Deed  from  third  parties  or  guarantees
indemnities  or other  commitments  of like nature given to third parties by any
such person and (without  prejudice to the  generality  of this  paragraph)  the
Trustee  may  mortgage  charge  or pledge  the  Trust  Fund or any part of it in
support  of any such  guarantee  given by the  Trustee  and may enter  into such
indemnities as the Trustee thinks fit in connection with any such guarantee

8.    Power to enter into put and call options

The Trustee may enter into put and call option  arrangements and invest the
Trust Fund in the  acquisition of property  pursuant to such put and call option
arrangements even if the price payable under any such arrangements  differs from
the market  price for the time being of the  property  acquired  thereunder  and
notwithstanding  that the same may  result in a loss to the  Trust  Fund and may
make any ancillary  agreement  with any person in connection  with such put call
option arrangements

9.    Powers in relation to real property

When the  Trust  Fund  includes  any real or  immovable  property  (in this
paragraph referred to as "the land"):-

(1)   The Trustee may lease all or any part of the land for any purpose (whether
      involving  waste or not) and for any term and  either wholly or partly in
      consideration of a rent (whether fixed or variable) fine or premium or the
      erection improvement or repair or any agreement to erect improve or repair
      buildings or other structures on the land and may accept (with or without
      consideration) the surrender of any lease of all or any part of the land

(2)   The Trustee may in executing  any trust for sale or power of sale sell all
      or any part of the land either  wholly or partly in  consideration  of an
      annual sum payable either in  perpetuity or for any term and being either
      reserved out of the land sold or  secured in such  manner as the  Trustee
      thinks fit

(3)   The Trustee may in executing any trust for sale power of sale or power
      of leasing:-

      (a)  sell or lease all or any part of the land and divide the land
           horizontally vertically or in any other way

      (b)  sell lease except or reserve any easement right or privilege over
           all or any part of the land


<PAGE>

      (c)  sell lease except or reserve any timber or mines or minerals on or in
           or under all or any part of the land together with any easement right
           or  privilege  of cutting or working  and carrying  away the same or
           otherwise incidental to or connected with forestry or mining purposes

      (d)  impose  and make  binding for the  benefit of all or any part of the
           land sold or leased  any restriction  or  stipulation  as to user or
           otherwise affecting all or any part of the land retained

      (e)  accept  in  exchange for all or any  part of the  land to be sold or
           leased  (either  with or without  any  money  paid or  received  for
           equality of  exchange) any other real or  immovable  property or any
           lease

      (f)  enter into any  contract or grant any option for the sale or leasing
           of all or any part of the land or for the exercise by the Trustee of
           any of the powers conferred by this paragraph

(4)   The Trustee shall not be bound to see to nor be liable or accountable for
      omitting or neglecting to see to the maintenance or repair of the land or
      of any  building or other  structure on the land or to the payment of any
      outgoings relating to the land or such building or other structure but may
      maintain  or  repair  the same in such manner  and to such  extent as the
      Trustee thinks fit

(5)   The Trustee may expend moneys altering improving or developing the land or
      any building or other structure on the land (including  erecting enlarging
      demolishing or rebuilding  the same) in such manner and to such extent as
      it thinks fit

10.   Powers in relation to chattels

When the Trust Fund includes any chattels (in this paragraph referred to as
"the chattels"):-

(1)   The Trustee may sell lease hire deposit  store or otherwise deal with the
      chattels on such terms as it thinks fit

(2)   The Trustee shall not be bound to see to nor be liable or accountable for
      omitting or neglecting to see to the safe custody maintenance or repair 
      of the chattels but may see to the safe custody maintenance or repair of
      the chattels in such manner and to such extent as it thinks fit

11.   Power to permit occupation of property and enjoyment of chattels

The Trustee may permit any person  beneficially  interested in this Deed to
occupy or reside in any real or immovable  property or to have the enjoyment and
use of any chattels or other movable  property  which or the proceeds of sale of
which are  comprised in the Trust Fund on such terms as to payment of rent rates
taxes and other expenses and outgoings and as to insurance repair and decoration
and generally on such terms as the Trustee thinks fit

12.   Power to insure property

The Trustee may insure any property comprised in the Trust Fund against any
loss or damage from any risk for any amount and may pay the  premiums in respect

<PAGE>

of such  insurance out of the capital or income of the Trust Fund as the Trustee
thinks fit provided  that the Trustee shall not be bound to see to nor be liable
or  accountable  for omitting or neglecting to see to such  insurance or for the
adequacy of such insurance

13.   Powers in relation to life insurance policies

The  Trustee  may  apply  any  part of the  capital  of the  Trust  Fund in
effecting  acquiring or  maintaining  any policy of insurance (in this paragraph
referred to as "the policy") on the life of any person  (whether term  endowment
whole life or accident) and the Trustee may:-

(1)   borrow on the security of the policy for any purpose

(2)   convert the policy into a fully paid-up policy for a reduced sum insured
      free from payment of future premiums

(3)   surrender wholly or partially the policy or any bonus attaching to the
      policy for its cash surrender value

(4)   sell the policy on such terms as the Trustee thinks fit

(5)   exercise  the powers conferred  by the policy or with the  consent of the
      insurer alter the amount or occasion of the payment of the sum insured or
      increase or decrease the amount of the premiums (if any) payable under 
      the policy or alter the period during which the premiums are payable and
      do any of these things notwithstanding that the sum insured may be
      reduced

14.   Power to trade

(1) The  Trustee  may trade or take part in any  venture  in the  nature of
trade  either  alone or with  any  other  person  and  whether  or not by way of
partnership   (limited  or  general)  and  for  these  purposes  may  make  such
arrangements as it thinks fit

(2)  Any  power  vested  in  the  Trustee  under  this  Deed  shall  (where
applicable)  extend to any  arrangements  in  connection  with any such trade or
venture and (without  prejudice to the  generality of such powers) the powers of
the Trustee of borrowing and charging shall extend to any borrowing arrangements
made in  connection  with such trade or venture and whether  made  severally  or
jointly with others or with unequal  liability and the Trustee shall be entitled
to be fully indemnified out of the Trust Fund against all personal  liability to
which it may become in any manner  subject in connection  with any such trade or
venture

15.   Power to promote companies

The Trustee  may  (without  prejudice  to the  generality  of its powers of
investment) promote or incorporate or join with any other person in promoting or
incorporating  any company or  subscribe  for or acquire any of the shares stock
debentures  debenture  stock or loan capital of any company with a view to or in
consideration of:-

(1)   the establishment and carrying on by the company of a business of any kind
      which the Trustee is authorised to carry on itself and the acquisition of
      any  assets  comprised  in the Trust Fund  which may be required  for the
      purposes of such business


<PAGE>

(2)   the  acquisition by the company of any assets and the  undertaking of any
      business  being carried on by the Trustee  under the power  conferred  by
      paragraph 14

(3)   the acquisition by the company of any of the assets comprised in the
      Trust Fund to be held as investments of the company

16.   Power to enter into any compromise or arrangement relating to companies

The  Trustee  may enter into any  compromise  or  arrangement  (whether  in
connection  with a scheme of  reconstruction  amalgamation  or  otherwise)  with
respect to all or any of the rights of the  Trustee as holder of shares or other
securities or as creditor of any company (whether in connection with a scheme of
reconstruction  or  amalgamation  or  otherwise)  and may  accept in or  towards
satisfaction  of all or any of such rights such  consideration  as it thinks fit
whether in the form of cash or options or shares or other securities of the same
or of any other company or companies or in any other form

17.   Power to concur in winding up or liquidating companies

The Trustee may concur in the winding up or  liquidation  of any company in
which it is interested as a holder of shares or other  securities and may accept
in  satisfaction  of  all  or  any of its  rights  in  any  such  winding  up or
liquidation a  distribution  in specie of the assets of any such company and may
thereafter  hold or carry on business  with such assets either alone or with any
other person

18.   No requirement to interfere in the business of companies

The Trustee  shall not be bound or required to interfere in the  management
or conduct of the business of any company in which the Trust Fund or any part of
it is invested even if shares  carrying the control of the company are comprised
in the Trust Fund and so long as the Trustee  shall have no actual notice of any
act of dishonesty or  misappropriation  of moneys by any of the directors of the
company the Trustee may leave the conduct of its business (including the payment
or non-payment of dividends) wholly to the directors

19.   Acceptance of receipts from parent or guardian of minor beneficiaries

If any part of the  capital or income of the Trust Fund shall be payable to
or  applicable  for the benefit of a minor the  Trustee may pay such  capital or
income to such  minor or to a parent or  guardian  of that minor  without  being
obliged to enquire  whether such  guardian has any right to the care and control
of such minor and the receipt of the parent or guardian for such  payment  shall
be a complete  discharge  to the  Trustee who shall not be  concerned  as to the
further application of such capital or income

20.   Exclusion of apportionment

The statutory and equitable rules of apportionment  shall not apply to this
Deed and the  Trustee  shall  treat  all  dividends  and other  income  payments
received by it (and which would  otherwise  be  apportionable)  as income at the
date of  receipt  irrespective  of the period  for which the  dividend  or other
income is payable


<PAGE>

21.   Power to appropriate

The Trustee may allot appropriate  partition or apportion (either expressly
or by  implication)  any  property  which is for the time  being  subject to the
trusts of this Deed in or  towards  the  satisfaction  of any share or  interest
(including any share or interest of the Trustee) in the capital or income of the
Trust Fund in such manner as the Trustee (without the necessity of obtaining any
consent)  considers  just  according  to the  respective  rights of the  persons
interested

22.   Power to employ agents

The Trustee may instead of acting  personally employ and pay at the expense
of the  capital  or income of the Trust  Fund any  accountants  attorneys  banks
brokers solicitors trust companies or other agents without being responsible for
the default of any agent if employed in good faith to transact  any  business or
act as  nominee  or do any act in the  execution  of the  trusts  of  this  Deed
including  (without  prejudice to the generality of this  paragraph) the receipt
and payment of moneys and the execution of documents

23.   Power to employ nominees

The  Trustee may invest or hold or allow to remain in the name or under the
control (if more than one) of one or more of the Trustees or of any other person
or corporation or partnership as nominee of the Trustee the whole or any part of
the Trust Fund on such terms and conditions as the Trustee thinks fit

24.   Power to give proxies and powers of attorney

The  Trustee  may appoint as its proxies and give powers of attorney to any
one or more of the  Trustees  or any  other  person  (with or  without  power of
substitution)  for voting or acting on behalf of the  Trustee in relation to any
property forming part of the Trust Fund

25.   Power to keep deeds in any part of the world

The  Trustee may keep the deeds and other  documents  relating to this Deed
and the deeds and  documents of title to the whole or any part of the Trust Fund
in any part of the world as the Trustee thinks fit

26.   Power to delegate management of investments

(1) The Trustee may engage the  services of any person or  partnership  (in
this paragraph referred to as "the investment adviser") to advise the Trustee on
the  investment  of the whole or any part of the Trust Fund and the  Trustee may
without being liable for any consequent loss delegate to the investment  adviser
discretion to manage the  investments in the whole or any part of the Trust Fund
within the limits and for the period  stipulated  by the Trustee and the Trustee
may settle  the terms and  conditions  for the  remuneration  of the  investment
adviser and the reimbursement of the expenses of the investment adviser

(2) The  Trustee  shall not be bound to  enquire  into nor be in any manner
responsible for any changes in the legal status of the investment adviser


<PAGE>

(3) The Trustee shall not be liable for any action taken pursuant to or for
following the advice of the investment adviser however communicated

27.   Power to delegate operation of bank accounts

The Trustee may delegate to any person the  operation of any bank  building
society or other account

28.   Power to delegate generally

Any  Trustee  may  (notwithstanding  any  rule of law to the  contrary  and
without  prejudice to the generality of the other powers conferred by this Deed)
by deed  revocable or  irrevocable  delegate to any person  (including  in cases
where there is more than one trustee to any other or others of the  Trustee) the
exercise of all or any trusts powers and  discretions  conferred on such Trustee
(other than the power of delegation conferred by this paragraph) notwithstanding
the fiduciary nature of such trusts powers and discretions

29.   Power to give indemnities

(1) The  Trustee  may enter  into any  indemnity  in  favour of any  former
trustee  or any other  person  in  respect  of any  fiscal  imposition  or other
liability of any nature relating to this Deed or to the Trust Fund or the income
thereof  and may  charge or  deposit  the whole or any part of the Trust Fund as
security for any such indemnity in such manner as the Trustee thinks fit

(2) The Trustee may give any indemnity  warranty  guarantee  undertaking or
covenant or enter into any  agreement  as it thinks fit relating to the transfer
or sale of a  business  or shares in a company  owned or held by the  Trustee in
favour of any  transferee  purchaser or other  relevant  party and including any
limitation or restriction on value or otherwise as the Trustee thinks fit

30.   Power to audit accounts

The Trustee  may cause the  accounts of this Deed to be examined or audited
from time to time and at such  intervals  as it thinks fit by such persons as it
shall  decide  and may pay the  cost of such  examination  or  audit  out of the
capital or income of the Trust Fund

31.   Power to audit company accounts

The Trustee may cause the accounts of any company  which is wholly owned by
the Trustee to be audited  from time to time and at such  intervals as it thinks
fit by such persons as it shall decide (whether or not such audit is required by
the law of such  company's  residence) and may pay the cost of such audit out of
the capital or income of the Trust Fund

32.   Power to pay duties and taxes

In the event of any duties fees taxes or other fiscal impositions  becoming
payable  in any part of the world in respect of the Trust Fund or any part of it
on the  death of any  person  who has at any time  transferred  property  to the
Trustee to be held by it as part of the Trust Fund or of any person beneficially
interested  in this Deed or in any other  circumstances  the Trustee may pay all
such duties fees taxes or other fiscal  impositions out of the capital or income

<PAGE>

of the Trust Fund and may decide the time and manner in which such  duties  fees
taxes or other fiscal  impositions shall be paid and so that the Trustee may pay
such duties fees taxes or other fiscal impositions notwithstanding that the same
shall not be recoverable from the Trustee or any person beneficially  interested
in this Deed or that the  payment  shall not be to the  advantage  of any person
beneficially interested in this Deed

33.   Trustee's powers authorities and discretions exercisable without liability

Every power  authority or discretion  conferred on the Trustee by this Deed
or by law shall be an absolute and  uncontrolled  power  authority or discretion
and no Trustee  shall be liable for any loss or damage  occurring as a result of
its  agreement  or refusal or  failure  to agree to any  exercise  of such power
authority or discretion

34.   Protection of the Trustee in respect of distributions

The Trustee may distribute the capital and income of the Trust Fund without
having  ascertained  that there is not any person whose parents were not married
to each other at the time of his birth or who claims  through  such a person who
is or may be  beneficially  interested in this Deed and the Trustee shall not be
liable  to any such  person of whose  existence  it had no notice at the time of
such distribution or who claims through such a person

35.   Protection of the Trustee generally

No Trustee shall be liable for any loss to the Trust Fund arising by reason
of:-

(1)   any unauthorised investment made in good faith

(2)   the negligence or fraud of any agent employed by such Trustee or by any 
      of the Trustees even if the employment of such agent  was not  strictly
      necessary or expedient

(3)   any mistake or omission made in good faith by such Trustee or by any of
      the Trustees or

(4)   any other matter or thing except fraud, wilful misconduct or gross
      negligence of such Trustee

and in particular  (without  prejudice to the generality of this paragraph)
no Trustee shall be bound to take any proceedings against a co-trustee or former
trustee or his  personal  representatives  for any  breach or alleged  breach of
trust committed or suffered by such co-trustee or former trustee

36.   Power to vary administrative provisions

When in the management or  administration  of the Trust Fund any sale lease
mortgage  surrender  release or other  disposition  or any  purchase  investment
acquisition  expenditure  or other  transaction is in the opinion of the Trustee
expedient  but the same cannot be effected by reason of the absence of any power
for that purpose conferred on the Trustee by this Deed or by law the Trustee may
by deed confer on itself  either  generally  or in any  particular  instance the
necessary  power for the purpose  provided that if the Committee is in existence

<PAGE>

at the time the  Trustee  shall  only do so with the  consent  in writing of the
Committee  and on the  execution  of any such deed the  Trustee  shall have such
power as if it had been expressly conferred on it by this Deed

37.   Release of powers

The Trustee may by deed or deeds (and so as to bind successive  trustees of
this Deed)  release or restrict the future  exercise of all or any of the powers
conferred on it by this Deed or by law either wholly or to the extent  specified
in any such deed  notwithstanding  the fiduciary  nature of such powers provided
that if the  Committee is in existence at the time the Trustee  shall only do so
with the consent in writing of the Committee

38.   Duration of powers

Every power  authority  or  discretion  conferred  on the Trustee or on any
other  person by this  Deed  shall  (notwithstanding  anything  to the  contrary
expressed  or  implied  in this Deed) only be  exercisable  during  such  period
(whether  definite  or  indefinite)  as in  the  case  of the  particular  power
authority or discretion the law may allow

39.   Power to receive remuneration

Any Trustee and any  director  or other  officer of any company  which is a
Trustee  may be  employed  and  remunerated  as a director  or other  officer or
employee  or as agent or  adviser  of any  business  company  or firm in any way
connected  with the Trust Fund and may retain  (without  being liable to account
therefor) any remuneration  fees or profits received by him in any such capacity
notwithstanding  that his  employment  may have been  obtained or may be held or
retained by means or by reason of his  position as one of the Trustees or as the
director  or other  officer of any  company  which is a Trustee or of any shares
stock  property  rights or powers  whatever  belonging to or connected  with the
Trust Fund

40.   Power to retain commission

Any Trustee  may retain  (without  being  liable to account  therefor)  any
commission  received by him or his firm for any transaction  carried out for the
Trustee  for which he or his firm is in the normal  course of  business  allowed
commission  notwithstanding  that the receipt of such commission was procured by
an exercise by him or the Trustee of the powers conferred by this Deed or by law

41.   Power to exercise powers notwithstanding personal interest

Any Trustee may exercise or concur in exercising all powers and discretions
conferred on him by this Deed or by law  notwithstanding  that he has a personal
interest  in the  mode or  result  of any  such  exercise  but any  Trustee  may
nevertheless  abstain from acting  except as a merely formal party in any matter
in which he may be so personally interested and may allow his co-trustees (being
at least two in number or a trust  corporation) to act alone in relation to such
matter

42.   Power to permit self-dealing

Any Trustee may  purchase or acquire from or sell or let to the Trustee any
property  liable to be sold let disposed of or acquired or  purchased  under the

<PAGE>

powers  conferred  by this  Deed or by law at such  price or rent and upon  such
terms as the Trustee  thinks fit without  being liable to account for any profit
provided that:-

(1)   no  purchase by a Trustee  under this power shall be made at a price less
      than  the market  value  of the  property  purchased  at the date of such
      purchase

(2)   no sale by a Trustee under  this power  shall be made at a price  greater
      than the market value of the property sold at the date of such sale

(3)   no lease to a Trustee under  this  power  shall be granted at a rent less
      than the market rent of the property let at the date of such lease

(4)   no lease by a Trustee under this power shall be granted at a rent greater
      than the market rent of the property let at the date of such lease

but so that the Trustees  other than the Trustee so  purchasing  selling or
leasing  shall be entitled to  determine  the market value or the market rent of
any property for the purposes of this paragraph

43.   Professional trustee charging power

Any  Trustee who is an  individual  engaged in any  profession  or business
shall be entitled to charge and be paid all usual  professional  or other proper
charges for business  transacted  time expended and acts done by him or his firm
or any  partner  of his in  connection  with this Deed  including  acts  which a
trustee not being in any profession or business could have done personally

44.   Corporate trustee charging power

Any corporate  trustee shall be entitled in addition to reimbursement  from
the capital or income of the Trust Fund of its proper  expenses to  remuneration
from the capital or income of the Trust Fund for its services in accordance with
such corporation's terms and conditions for trust business in force from time to
time and may act by its proper  officers in the  discharge of its duties as such
trustee and in the exercise of the powers and discretions conferred by this Deed
or by law


<PAGE>


SIGNED as a DEED by SERIF           )
(EUROPE) LIMITED                    )
acting by                           )
and                                 )


                                           /s/Peter Beedham
                                           -----------------------------------
                                           Director


                                           /s/Gwyn Jones
                                           -----------------------------------
                                           Director



SIGNED as a DEED and DELIVERED       )
by BARRY CINNAMON                    )     /s/Barry A. Cinnamon
before                               )     -----------------------------------


/s/Neil M. Kaufman
- ------------------------------
Witness

Address

2556 Elderbery Road
North Bellmore, New York U.S.A. 11710


Attorney
- ------------------------------
Occupation


SIGNED as a DEED and DELIVERED       )
by MARK LEININGER                    )     /s/Mark E. Leininger
before                               )     -----------------------------------


/s/Neil M. Kaufman
- ------------------------------
Witness

Address

2556 Elderbery Road
North Bellmore, New York U.S.A. 11710


Attorney
- ------------------------------
Occupation


<PAGE>


CONTENTS
Clauses

1     Name of Trust
2     Definitions and interpretation
3     Employees' share scheme
4     Trust for sale
5     Power of appointment
6     Discretionary trusts of capital and income in default of appointment
7     Default trust
8     Ultimate default trust
9     Acquisition and disposal of Shares
10    Awards and Options
11    Waiver of dividends
12    Recommendations of the Committee
13    Administrative provisions
14    Indemnity from the Company
15    Appointment and removal of Trustee
16    Trustee' proceedings
17    The Committee
18    Proper law and administrative forum
19    Restrictions on powers
20    Termination
21    Amendment
22    Headings
23    Execution

SCHEDULE 1
The original Trust Fund



<PAGE>


SCHEDULE 2

Administrative provisions

1     Power of investment
2     Power to enter into agreements
3     No requirement to diversify investment
4     No requirement to invest in income producing investments
5     Power to lend
6     Power to borrow
7     Power to give guarantees
8     Power to enter into put and call options
9     Powers in relation to real property
10    Powers in relation to chattels
11    Power to permit occupation of property and enjoyment of chattels
12    Power to insure property
13    Powers in relation to life insurance policies
14    Power to trade
15    Power to promote companies
16    Power to enter into any compromise or arrangement relating to companies
17    Power to concur in winding up or liquidating companies
18    No requirement to interfere in the business of companies
19    Acceptance of receipts from parent or guardian of minor beneficiaries
20    Exclusion of apportionment
21    Power to appropriate
22    Power to employ agents
23    Power to employ nominees
24    Power to give proxies and powers of attorney
25    Power to keep deeds in any part of the world
26    Power to delegate management of investments
27    Power to delegate operation of bank accounts
28    Power to delegate generally
29    Power to give indemnities
30    Power to audit accounts
31    Power to audit company accounts
32    Power to pay duties and taxes
33    Trustee' powers authorities and discretions exercisable without liability
34    Protection of the Trustee in respect of distributions
35    Protection of the Trustee generally
36    Power to vary administrative provisions
37    Release of powers
38    Duration of powers
39    Power to receive remuneration
40    Power to retain commission
41    Power to exercise powers notwithstanding personal interest
42    Power to permit self-dealing
43    Professional trustee charging power
44    Corporate trustee charging power
45    Power to Amend

 
                      AGREEMENT AND PLAN OF REORGANIZATION
 
     This AGREEMENT AND PLAN OF  REORGANIZATION  (the  "Agreement")  is made and
entered into as of October 1st, 1996 among  Allegro New Media,  Inc., a Delaware
corporation ("Allegro"), SPC Acquisition Corporation, a Delaware corporation and
a wholly-owned  subsidiary of Allegro  ("Merger Sub"),  and Software  Publishing
Corporation, a Delaware corporation ("SPC").
 
                                    RECITALS
 
     A. Upon the terms and subject to the  conditions  of this  Agreement and in
accordance with the Delaware General  Corporation Law ("Delaware Law"),  Allegro
and SPC will enter into a business  combination  transaction  pursuant  to which
Merger Sub will merge with and into SPC (the "Merger").
 
     B. The Board of Directors of Allegro (i) has determined  that the Merger is
consistent with and in furtherance of the long-term business strategy of Allegro
and fair to, and in the best  interests of, Allegro and its  stockholders,  (ii)
has approved this Agreement, the Merger and the other transactions  contemplated
by this Agreement and (iii) has  recommended  that the  stockholders  of Allegro
vote to approve this Agreement.
 
     C. The Board of  Directors  of SPC (i) has  determined  that the  Merger is
consistent with and in furtherance of the long-term business strategy of SPC and
fair to,  and in the  best  interests  of,  SPC and its  stockholders,  (ii) has
approved this Agreement,  the Merger and the other transactions  contemplated by
this Agreement and (iii) has  recommended  the approval of this Agreement by the
stockholders of SPC.
 
     D.  Allegro  and Merger  Sub,  on the one hand,  and SPC on the other hand,
desire to make certain  representations  and warranties and other  agreements in
connection with the Merger.
 
     E. The parties  intend,  by executing  this  Agreement,  to adopt a plan of
reorganization within the meaning of Section 368 of the Internal Revenue Code of
1986, as amended (the "Code").
 
     NOW,   THEREFORE,   in  consideration   of  the  covenants,   promises  and
representations set forth herein, and for other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged,  the parties agree
as follows:
 
                                   ARTICLE I
 
                                   THE MERGER
 
     1.1 The  Merger.  At the  Effective  Time (as  defined in Section  1.2) and
subject  to and  upon  the  terms  and  conditions  of  this  Agreement  and the
applicable  provisions of Delaware Law, Merger Sub shall be merged with and into
SPC,  the separate  corporate  existence of Merger Sub shall cease and SPC shall
continue as the surviving  corporation.  SPC as the surviving  corporation after
the Merger is hereinafter sometimes referred to as the "Surviving Corporation."
 
     1.2 Effective Time;  Closing.  Subject to the provisions of this Agreement,
the  parties  hereto  shall  cause  the  Merger  to be  consummated  by filing a
Certificate of Merger (the  "Certificate of Merger") with the Secretary of State
of the State of Delaware in accordance with the relevant  provisions of Delaware
Law (the time of such  filing (or such later time as may be agreed in writing by
the parties and specified in the  Certificate  of Merger)  being the  "Effective
Time") as soon as practicable on or after the Closing Date (as herein  defined).
Unless the  context  otherwise  requires,  the term  "Agreement"  as used herein
refers collectively to this Agreement and the Certificate of Merger. The closing
of the Merger (the "Closing")  shall take place at the offices of Wilson Sonsini
Goodrich & Rosati,  Professional  Corporation at a time and date to be specified
by the parties,  which shall be no later than the second  business day after the
satisfaction  or waiver of the  conditions  set forth in Article  VI, or at such
other  time,  date and  location  as the parties  hereto  agree in writing  (the
"Closing Date").
 

<PAGE>

     1.3 Effect of the Merger.  At the Effective  Time, the effect of the Merger
shall be as provided in this Agreement and the applicable provisions of Delaware
Law. Without limiting the generality of the foregoing,  and subject thereto,  at
the Effective Time all the property, rights,  privileges,  powers and franchises
of SPC and Merger Sub shall vest in the  Surviving  Corporation,  and all debts,
liabilities and duties of SPC and Merger Sub shall become the debts, liabilities
and duties of the Surviving Corporation.
 
     1.4 Certificate of Incorporation; Bylaws.
 
     (a) At the Effective Time, the Certificate of  Incorporation of Merger Sub,
as in effect  immediately  prior to the Effective Time, shall be the Certificate
of  Incorporation  of the  Surviving  Corporation  until  thereafter  amended as
provided by law and such Certificate of Incorporation;  provided,  however, that
at the  Effective  Time  the  Certificate  of  Incorporation  of  the  Surviving
Corporation shall be amended so that the name of the Surviving Corporation shall
be "Software Publishing Corporation."
 
     (b) The  Bylaws  of  Merger  Sub,  as in  effect  immediately  prior to the
Effective  Time,  shall be, at the Effective  Time,  the Bylaws of the Surviving
Corporation until thereafter amended.
 
     1.5 Directors and Officers.  The directors of Merger Sub immediately  prior
to  the  Effective  Time  shall  be  the  initial  directors  of  the  Surviving
Corporation, until their respective successors are duly elected or appointed and
qualified.  The officers of Merger Sub  immediately  prior to the Effective Time
shall  be  the  initial  officers  of the  Surviving  Corporation,  until  their
successors are duly elected or appointed or qualified.
 
     1.6 Effect on Capital Stock. At the Effective Time, by virtue of the Merger
and without  any action on the part of Merger Sub,  SPC or the holders of any of
the following securities:
 
          (a) Conversion of SPC Capital Stock.  Each share of Common Stock, par
     value $.001 per share, of SPC (the "SPC Capital Stock") issued and
     outstanding immediately prior to the Effective Time (other than any shares
     of SPC Capital Stock to be canceled pursuant to Section 1.6(b) and any
     Dissenting Shares (as defined in and to the extent provided in Section
     1.7(a)) will be canceled and extinguished and automatically converted
     (subject to Sections 1.6(e) and (f)) into the right to receive 0.26805
     the "Exchange Ratio") shares of Common Stock, par value $.001 per share,
     of Allegro (the "Allegro Common Stock") upon surrender of the certificate
     representing such share of SPC Capital Stock in the manner provided in
     Section 1.8 (or in the case of a lost, stolen or destroyed certificate,
     upon delivery of an affidavit (and bond, if required) in the manner
     provided in Section 1.10).
 
          (b) Cancellation of Allegro-Owned Stock.  Each share of SPC Capital
     Stock held in the treasury of SPC or owned by Merger Sub, Allegro or any
     direct or indirect wholly owned subsidiary of SPC or of Allegro immediately
     prior to the Effective Time shall be canceled and extinguished without any
     conversion thereof.
 
          (c) Stock Options.  At the Effective Time all options to purchase SPC
     Capital Stock then outstanding under SPC's 1987 Stock Option Plan, 1989
     Stock Option Plan, and 1991 Stock Option Plan (collectively, the "SPC Stock
     Option Plans") shall be assumed by Allegro in accordance with Section 5.11
     hereof.
 
          (d) Employee Stock Purchase Plan.  With respect to the Company's
     Employee Stock Purchase Plan (the "SPC Employee Stock Purchase Plan"), the
     offering period currently in progress shall be shortened by setting a new
     exercise date which shall be the date immediately preceding the Effective
     Time (the "New Exercise Date"). The SPC Employee Stock Purchase Plan shall
     terminate immediately following the purchase of SPC Capital Stock on the
     New Exercise Date.
 

<PAGE>

          (e) Capital Stock of Merger Sub.  Each share of Common Stock, par
     value $.001 per share, of Merger Sub issued and outstanding immediately
     prior to the Effective Time shall be converted into and exchanged for one
     validly issued, fully paid and nonassessable share of Common Stock, par
     value $.001 per share, of the Surviving Corporation. Each stock certificate
     of Merger Sub evidencing ownership of any such shares shall continue to
     evidence ownership of such shares of capital stock of the Surviving
     Corporation.
 
          (f) Adjustments to Exchange Ratio.  The Exchange Ratio shall be
     adjusted to reflect fully the effect of any stock split, reverse stock
     split, stock dividend (including any dividend or distribution of
     securities convertible into Allegro Common Stock or SPC Capital Stock),
     reorganization, recapitalization or other like change with respect to
     Allegro Common Stock or SPC Capital Stock occurring on or after the date
     hereof and prior to the Effective Time.
 
          (g) Fractional Shares.  No fraction of a share of Allegro Common Stock
     will be issued by virtue of the Merger, but in lieu thereof each holder of
     shares of SPC Capital Stock who would otherwise be entitled to a fraction
     of a share of Allegro Common Stock (after aggregating all fractional shares
     of Allegro Common Stock to be received by such holder) shall receive from
     Allegro an amount of cash (rounded to the nearest whole cent) equal to the
     product of (i) such fraction, multiplied by (ii) the average closing price
     of a share of Allegro Common Stock for the ten most recent days that
     Allegro Common Stock has traded ending on the trading day immediately 
     prior to the Effective Time, as reported on the Nasdaq SmallCap Market.
 
     1.7 Dissenting Shares.
 
     (a)  Notwithstanding  any provision of this Agreement to the contrary,  the
shares  of any  holder  of SPC  Capital  Stock who has  demanded  and  perfected
appraisal  rights for such shares in accordance with Delaware Law and who, as of
the Effective Time, has not effectively  withdrawn or lost such appraisal rights
("Dissenting  Shares")  shall  not be  converted  into or  represent  a right to
receive  Allegro  Common Stock  pursuant to Section 1.6, but the holder  thereof
shall only be entitled to such rights as are granted by Delaware Law.
 
     (b) Notwithstanding  the foregoing,  if any holder of shares of SPC Capital
Stock who demands  appraisal of such shares under Delaware Law shall effectively
withdraw the right to appraisal, then, as of the later of the Effective Time and
the  occurrence  of such event,  such  holder's  shares shall  automatically  be
converted  into and represent  only the right to receive  Allegro  Common Stock,
without interest  thereon,  upon surrender of the certificate  representing such
shares.
 
     (c) SPC shall give  Allegro (i) prompt  notice of any  written  demands for
appraisal of any shares of SPC Capital Stock,  withdrawals of such demands,  and
any other instruments  served pursuant to Delaware Law and received by SPC which
relate to any such demand for appraisal and (ii) the  opportunity to participate
in all negotiations and proceedings which take place prior to the Effective Time
with respect to demands for appraisal  under Delaware Law. SPC shall not, except
with the prior  written  consent of Allegro or as may be required by  applicable
law,  voluntarily  make any payment with respect to any demands for appraisal of
SPC Capital Stock or offer to settle or settle any such demands.
 
     1.8 Surrender of Certificates.
 
     (a) Exchange Agent.  Allegro shall select American Stock Transfer and Trust
Company  or another  institution  reasonably  satisfactory  to SPC to act as the
exchange agent (the "Exchange Agent") in the Merger.
 
     (b) Allegro to Provide  Common Stock.  Promptly  after the Effective  Time,
Allegro  shall make  available to the Exchange  Agent for exchange in accordance
with this  Article I, the shares of Allegro  Common Stock  issuable  pursuant to
Section 1.6 in exchange for outstanding shares of SPC Capital Stock, and cash in
an amount  sufficient  for  payment in lieu of  fractional  shares  pursuant  to
Section 1.6(f) and any dividends or  distributions  and holders of shares of SPC
Capital Stock may be entitled pursuant to Section 1.8(d).
 

<PAGE>

     (c) Exchange  Procedures.  Promptly after the Effective Time, Allegro shall
cause the Exchange  Agent to mail to each holder of record (as of the  Effective
Time) of a certificate or certificates  (the  "Certificates")  which immediately
prior to the Effective Time represented  outstanding shares of SPC Capital Stock
whose shares were  converted  into the right to receive shares of Allegro Common
Stock pursuant to Section 1.6, cash in lieu of any fractional shares pursuant to
Section 1.6(f) and any dividends or other distributions pursuant to Section
1.8(d),  (i) a letter of transmittal (which shall specify that delivery shall be
effected,  and risk of loss and title to the Certificates  shall pass, only upon
delivery of the Certificates to the Exchange Agent and shall be in such form and
have  such  other  provisions  as  Allegro  may  reasonably  specify)  and  (ii)
instructions  for use in effecting the surrender of the Certificates in exchange
for certificates  representing  shares of Allegro Common Stock,  cash in lieu of
any  fractional  shares  pursuant to Section  1.6(f) and any  dividends or other
distributions  pursuant to Section  1.8(d).  Upon surrender of a Certificate for
cancellation  to the  Exchange  Agent or to such other agent or agents as may be
appointed by Allegro,  together with such letter of transmittal,  duly completed
and validly executed in accordance with the instructions  thereto, the holder of
such Certificate shall be entitled to receive in exchange therefor a certificate
representing the number of whole shares of Allegro Common Stock, payment in lieu
of  fractional  shares  which such  holder has the right to receive  pursuant to
Section 1.6(f) and any dividends or  distributions  payable  pursuant to Section
1.8(d), and the Certificate so surrendered shall forthwith be canceled. Until so
surrendered,  each  outstanding  Certificate  will be deemed  from and after the
Effective Time, for all corporate purposes,  subject to Section 1.8(d) as to the
payment of dividends,  to evidence the ownership of the number of full shares of
Allegro Common Stock into which such shares of SPC Capital Stock shall have been
so converted  and the right to receive an amount in cash in lieu of the issuance
of any fractional  shares in accordance with Section 1.6(f) and any dividends or
distributions payable pursuant to Section 1.8(d).
 
     (d) Distributions With Respect to Unexchanged Shares. No dividends or other
distributions  declared or made after the date of this Agreement with respect to
Allegro Common Stock with a record date after the Effective Time will be paid to
the  holder of any  unsurrendered  Certificate  with  respect  to the  shares of
Allegro  Common  Stock  represented  thereby  until the holder of record of such
Certificate  shall  surrender  such  Certificate.  Subject  to  applicable  law,
following  surrender of any such Certificate,  there shall be paid to the record
holder thereof  certificates  representing  whole shares of Allegro Common Stock
issued  in  exchange  therefor,  without  interest,  along  with the  amount  of
dividends or other  distributions  with a record date after the  Effective  Time
payable with respect to such whole shares of Allegro Common Stock.
 
     (e) Transfers of Ownership. If any certificate for shares of Allegro Common
Stock  is to be  issued  in a name  other  than  that in which  the  Certificate
surrendered in exchange  therefor is  registered,  it will be a condition of the
issuance thereof that the Certificate so surrendered  will be properly  endorsed
and  otherwise in proper form for transfer and that the person  requesting  such
exchange will have paid to Allegro or any agent designated by it any transfer or
other taxes  required by reason of the issuance of a  certificate  for shares of
Allegro Common Stock in any name other than that of the registered holder of the
Certificate  surrendered,  or established to the  satisfaction of Allegro or any
agent designated by it that such tax has been paid or is not payable.
 
     (f) No Liability.  Notwithstanding anything to the contrary in this Section
1.8,  neither the Exchange  Agent,  Allegro,  the Surviving  Corporation nor any
party  hereto  shall be liable to a holder of shares of Allegro  Common Stock or
SPC Capital Stock for any amount properly paid to a public official  pursuant to
any applicable abandoned property, escheat or similar law.
 

<PAGE>

     1.9 No Further Ownership Rights in SPC Capital Stock. All shares of Allegro
Common  Stock  issued  upon  the  surrender  for  exchange  of  Certificates  in
accordance  with the terms hereof  (including  any cash paid in respect  thereof
pursuant to Section  1.6(f) and  1.8(d))  shall be deemed to have been issued in
full  satisfaction of all rights pertaining to such shares of SPC Capital Stock,
and there shall be no further  registration  of  transfers on the records of the
Surviving  Corporation  of shares of SPC Capital  Stock  which were  outstanding
immediately   prior  to  the  Effective  Time.  If  after  the  Effective  Time,
Certificates  are presented to the Surviving  Corporation  for any reason,  they
shall be canceled and exchanged as provided in this Article I.
 
     1.10 Lost, Stolen or Destroyed Certificates.  In the event any Certificates
shall have been lost,  stolen or  destroyed,  the Exchange  Agent shall issue in
exchange for such lost, stolen or destroyed Certificates,  upon the making of an
affidavit  of that fact by the holder  thereof,  such whole  number of shares of
Allegro  Common  Stock  into  which the shares of SPC  Capital  Stock  evidenced
thereby shall have been converted, cash for fractional shares, if any, as may be
required  pursuant to Section 1.6(f) and any dividends or distributions  payable
pursuant  to  Section  1.8(d);  provided,  however,  that  Allegro  may,  in its
discretion  and as a condition  precedent to the issuance  thereof,  require the
owner of such lost,  stolen or destroyed  Certificates to deliver a bond in such
sum as it may reasonably  direct as indemnity against any claim that may be made
against Allegro or the Exchange Agent with respect to the  Certificates  alleged
to have been lost, stolen or destroyed.
 
     1.11 Tax and Accounting Consequences.  It is intended by the parties hereto
that the Merger shall constitute a reorganization  within the meaning of Section
368 of the  Code.  The  parties  hereto  adopt  this  Agreement  as a  "plan  of
reorganization"  within the meaning of Sections 1.368-2(g) and 1.368-3(a) of the
United States Income Tax Regulations.
 
     1.12 Taking of Necessary Action;  Further Action. If, at any time after the
Effective  Time,  any further  action is necessary or desirable to carry out the
purposes  of this  Agreement  and to vest the  Surviving  Corporation  with full
right, title and possession to all assets, property, rights, privileges,  powers
and  franchises  of SPC and Merger Sub, the  officers  and  directors of SPC and
Merger Sub are fully authorized in the name of their respective  corporations or
otherwise to take, and will take, all such lawful and necessary  action, so long
as such action is consistent with this Agreement.
 
                                   ARTICLE II
 
                      REPRESENTATIONS AND WARRANTIES OF SPC
 
     SPC  represents  and  warrants to Allegro  and Merger  Sub,  subject to the
exceptions  specifically  disclosed in writing in the disclosure letter supplied
by SPC to Allegro (the "SPC Schedules"), as follows:
 
     2.1  Organization  of SPC. SPC and each of its material  subsidiaries  is a
corporation duly organized, validly existing and in good standing under the laws
of the jurisdiction of its incorporation,  has the 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 in good
standing as a foreign  corporation in each  jurisdiction in which the failure to
be so qualified would have a Material  Adverse Effect (as defined below) on SPC.
SPC  has  delivered  to  Allegro  a true  and  complete  list  of  all of  SPC's
subsidiaries, together with the jurisdiction of incorporation of each subsidiary
and SPC's equity  interest  therein.  SPC has delivered or made available a true
and  correct  copy of the  Certificate  of  Incorporation  and Bylaws of SPC and
similar governing  instruments of its subsidiaries,  each as amended to date, to
counsel  for  Allegro.  When used in  connection  with SPC,  the term  "Material
Adverse  Effect" means,  for purposes of this  Agreement,  any change,  event or
effect that is materially adverse to the business,  assets (including intangible
assets),   financial   condition  or  results  of  operations  of  SPC  and  its
subsidiaries  taken as a whole;  provided,  however,  that the  continuation  of
current trends in such business, assets (including intangible assets), financial
condition  or results of  operations  (including  without  limitation  declining
revenues  and  further  losses)  shall not be deemed to  constitute  a  Material
Adverse Effect,  but material  deviations  therefrom shall constitute a Material
Adverse Effect.
 

<PAGE>

     2.2 SPC Capital Structure.  The authorized capital stock of SPC consists of
30,000,000  shares of Common  Stock,  par value $.001 per share,  of which there
were  12,553,596  shares  issued and  outstanding  as of  October  1, 1996,  and
2,000,000 shares of Preferred  Stock,  par value $.001 per share,  none of which
are issued and outstanding as of October 1, 1996. All outstanding  shares of SPC
Capital Stock are duly authorized, validly issued, fully paid and non-assessable
and are not subject to preemptive rights created by statute,  the Certificate of
Incorporation  or Bylaws of SPC or any  agreement  or document to which SPC is a
party or by which it is bound.  As of  October  1,  1996,  SPC had  reserved  an
aggregate of 3,187,760 shares of Common Stock, net of exercises, for issuance to
employees,  consultants  and  non-employee  directors  pursuant to the SPC Stock
Option Plans,  under which options are outstanding for an aggregate of 3,018,725
shares.  All shares of SPC Capital Stock subject to issuance as aforesaid,  upon
issuance on the terms and conditions  specified in the  instruments  pursuant to
which they are issuable,  would be duly authorized,  validly issued,  fully paid
and  nonassessable.  The SPC Schedules list each  outstanding  option to acquire
shares of the Common Stock of SPC at October 1, 1996,  the name of the holder of
such option,  the number of shares subject to such option, the exercise price of
such  option,  the number of shares as to which such  option will have vested at
such date and whether the  exercisability  of such option will be accelerated in
any way by the  transactions  contemplated  by this  Agreement  or for any other
reason,  and indicate the extent of  acceleration,  if any. As of September  15,
1996, there were 10 participants in the SPC Employee Stock Purchase Plan.
 
     2.3  Obligations  With  Respect  to Capital  Stock.  Except as set forth in
Section  2.2,  there  are no  equity  securities  of any  class  of SPC,  or any
securities  exchangeable  or  convertible  into or  exercisable  for such equity
securities, issued, reserved for issuance or outstanding.  Except for securities
SPC owns, directly or indirectly through one or more subsidiaries,  there are no
equity  securities  of any  class  of any  subsidiary  of SPC,  or any  security
exchangeable  or  convertible  into or exercisable  for such equity  securities,
issued,  reserved  for issuance or  outstanding.  Except as set forth in Section
2.2, there are no options, warrants, equity securities, calls, rights (including
preemptive  rights),  commitments or agreements of any character to which SPC or
any of its subsidiaries is a party or by which it is bound obligating SPC or any
of its subsidiaries to issue, deliver or sell, or cause to be issued,  delivered
or sold, or repurchase,  redeem or otherwise  acquire,  or cause the repurchase,
redemption or acquisition,  of any shares of capital stock of SPC, or any of its
subsidiaries  or obligating  SPC or any of its  subsidiaries  to grant,  extend,
accelerate  the  vesting  of or  enter  into any such  option,  warrant,  equity
security, call, right, commitment or agreement. There are no registration rights
and,  to the  knowledge  of SPC,  there are no voting  trusts,  proxies or other
agreements or understandings with respect to any equity security of any class of
SPC  or  with  respect  to  any  equity  security  of  any  class  of any of its
subsidiaries.
 
     2.4 Authority.
 
     (a) SPC has all requisite  corporate power and authority to enter into this
Agreement and to consummate the transactions  contemplated hereby. The execution
and  delivery  of  this  Agreement  and  the  consummation  of the  transactions
contemplated hereby, have been duly authorized by all necessary corporate action
on the part of SPC,  subject  only to the  approval of this  Agreement  by SPC's
stockholders  and the  filing  and  recordation  of the  Certificate  of  Merger
pursuant  to  Delaware  Law. A vote of the holders of at least a majority of the
outstanding  shares of the SPC Capital Stock is required for SPC's  stockholders
to approve this  Agreement.  This Agreement has been duly executed and delivered
by SPC and,  assuming the due  authorization,  execution and delivery by Allegro
and, if applicable,  Merger Sub, constitutes the valid and binding obligation of
SPC,  enforceable in accordance with its terms,  except as enforceability may be
limited by bankruptcy  and other similar laws and general  principles of equity.
The  execution  and  delivery  of  this  Agreement  by SPC  does  not,  and  the
performance  of this Agreement by SPC will not, (i) conflict with or violate the
Certificate of Incorporation  or Bylaws of SPC or the equivalent  organizational
documents of any of its subsidiaries,  (ii) subject to obtaining the approval of

<PAGE>

SPC's  stockholders  of the Merger as contemplated in Section 5.2 and compliance
with the  requirements  set forth in  Section  2.4(b)  below,  conflict  with or
violate any law, rule,  regulation,  order, judgment or decree applicable to SPC
or any of its subsidiaries or by which its or any of their respective properties
is bound or affected,  or (iii) result in any breach of or  constitute a default
(or an event that with  notice or lapse of time or both would  become a default)
under,  or impair SPC's rights or alter the rights or  obligations  of any third
party  under,  or  give  to  others  any  rights  of   termination,   amendment,
acceleration  or  cancellation  of,  or  result  in the  creation  of a lien  or
encumbrance on any of the properties or assets of SPC or any of its subsidiaries
pursuant to, any note, bond, mortgage,  indenture,  contract,  agreement, lease,
license, permit, franchise or other instrument or obligation to which SPC or any
of its subsidiaries is a party or by which SPC or any of its subsidiaries or its
or any of their  respective  properties  are  bound or  affected,  except,  with
respect to clauses (ii) and (iii), for any such conflicts,  violations, defaults
or other  occurrences  that would not have a Material Adverse Effect on SPC. The
SPC Schedules  list all material  consents,  waivers and approvals  under any of
SPC's or any of its  subsidiaries'  agreements,  contracts,  licenses  or leases
required to be obtained in connection with the  consummation of the transactions
contemplated hereby.
 
     (b) No  consent,  approval,  order or  authorization  of, or  registration,
declaration  or filing with any court,  administrative  agency or  commission or
other  governmental  authority  or  instrumentality  ("Governmental  Entity") is
required by or with respect to SPC in connection with the execution and delivery
of this Agreement or the consummation of the transactions contemplated hereby or
thereby,  except for (i) the filing of a Form S-4  Registration  Statement  (the
"Registration Statement") with the Securities and Exchange Commission ("SEC") in
accordance with the Securities Act of 1933, as amended (the  "Securities  Act"),
(ii) the filing of the  Certificate of Merger with the Secretary of State of the
State of  Delaware,  (iii) the  filing of the Proxy  Statement  (as  defined  in
Section 2.20) with the SEC in  accordance  with the  Securities  Exchange Act of
1934, as amended (the  "Exchange  Act"),  (iv) the filing of a Current Report on
Form 8-K with the SEC, (v) 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 (vi)
such other consents, authorizations, filings, approvals and registrations which,
if not  obtained  or made,  would not have a Material  Adverse  Effect on SPC or
Allegro  or have a material  adverse  effect on the  ability  of the  parties to
consummate the Merger.
 
     2.5 Section 203 of the Delaware General Corporation Law Not Applicable. The
Board of  Directors  of SPC has  taken  all  actions  so that  the  restrictions
contained in Section 203 of the Delaware General Corporation Law applicable to a
"business  combination"  (as  defined  in  Section  203)  will not  apply to the
execution,  delivery or performance of this Agreement or to the  consummation of
the Merger or the other transactions contemplated by this Agreement.
 
     2.6 SEC Filings; SPC Financial Statements.
 
     (a) SPC has filed all forms,  reports  and  documents  required to be filed
with the SEC since  October  1, 1994,  and has made  available  to Allegro  such
forms,  reports and  documents in the form filed with the SEC. All such required
forms,  reports and documents  (including  those that SPC may file subsequent to
the date  hereof) are  referred to herein as the "SPC SEC  Reports." As of their
respective  dates,  the SPC SEC Reports (i) were prepared in accordance with the
requirements  of the Securities Act or the Exchange Act, as the case may be, and
the rules  and  regulations  of the SEC  thereunder  applicable  to such SPC SEC
Reports,  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  therein or necessary in order to make the
statements  therein,  in the light of the  circumstances  under  which they were
made, not misleading.  None of SPC's subsidiaries is required to file any forms,
reports or other documents with the SEC.
 

<PAGE>

     (b) Each of the consolidated financial statements (including, in each case,
any related notes thereto)  contained in SPC SEC Reports (the "SPC Financials"),
including any SPC SEC Reports filed after the date hereof until the Closing, (x)
complied  as to form in all  material  respects  with the  published  rules  and
regulations of the SEC with respect thereto, (y) was prepared in accordance with
generally accepted accounting  principles ("GAAP") applied on a consistent basis
throughout the periods involved (except as may be indicated in the notes thereto
or, in the case of unaudited interim financial  statements,  as may be permitted
by the SEC on Form 10-Q under the  Exchange  Act) and (z) fairly  presented  the
consolidated financial position of SPC and its subsidiaries as at the respective
dates thereof and the consolidated  results of its operations and cash flows for
the periods  indicated,  except that the unaudited interim financial  statements
were or are subject to normal and recurring year-end adjustments which were not,
or are not  expected  to be,  material  in  amount.  The  balance  sheet  of SPC
contained in SPC SEC Reports as of June 30, 1996 is  hereinafter  referred to as
the "SPC Balance Sheet." Except as disclosed in the SPC Financials,  neither SPC
nor any of its subsidiaries has any liabilities (absolute,  accrued,  contingent
or otherwise) of a nature  required to be disclosed on a balance sheet or in the
related notes to the consolidated  financial  statements  prepared in accordance
with GAAP which are, individually or in the aggregate, material to the business,
results of operations or financial  condition of SPC and its subsidiaries  taken
as a whole,  except  liabilities  (i) provided for in the SPC Balance Sheet,  or
(ii) incurred since the date of the SPC Balance Sheet in the ordinary  course of
business consistent with past practices.
 
     (c) SPC has heretofore  furnished to Allegro a complete and correct copy of
any amendments or modifications,  which have not yet been filed with the SEC but
which are required to be filed,  to agreements,  documents or other  instruments
which  previously  had been filed by SPC with the SEC pursuant to the Securities
Act or the Exchange Act.
 
     2.7 Absence of Certain Changes or Events. Since the date of the SPC Balance
Sheet through the date of this  Agreement,  there has not been: (i) any Material
Adverse  Effect  on SPC,  (ii)  any  material  change  by SPC in its  accounting
methods,  principles or practices,  except as required by concurrent  changes in
GAAP,  or (iii) any  revaluation  by SPC of any of its assets  having a Material
Adverse Effect on SPC, including, without limitation,  writing down the value of
capitalized  software or inventory  or writing off notes or accounts  receivable
other than in the ordinary course of business.
 
     2.8  Taxes.  SPC and each of its  subsidiaries  has filed  all tax  returns
required  to be  filed  by any of them  and  has  paid  (or SPC has  paid on its
behalf),  or has set up an adequate  reserve  for the  payment of, all  material
taxes  required  to be paid  as  shown  on such  returns,  and the  most  recent
financial  statements  contained  in the SPC SEC  Reports  reflect  an  adequate
reserve  for all  material  taxes  payable by SPC and its  subsidiaries  accrued
through the date of such financial statements. Except as reasonably would not be
expected to have a Material Adverse Effect on SPC, no deficiencies for any taxes
have been proposed, asserted or assessed against SPC or any of its subsidiaries.
For the purpose of this  Agreement,  the term "tax" shall  include all  Federal,
state, local and foreign income, profits,  franchise,  gross receipts,  payroll,
sales, employment, use, property, withholding, excise and other taxes, duties or
assessments of any nature whatsoever,  together with all interest, penalties and
additions imposed with respect to such amounts.
 
     2.9 Intellectual Property.
 
     (a) To the knowledge of SPC and its subsidiaries,  SPC and its subsidiaries
own, or have the right to use,  sell or license all patents,  trademarks,  trade
names,  service marks,  copyrights and other intellectual  property necessary or
required for the conduct of their respective  businesses as presently  conducted
(such intellectual  property and the rights thereto are collectively referred to
herein as the "SPC IP Rights"),  except for any failure to own or have the right
to use,  sell or license that would not have a Material  Adverse  Effect on SPC;
provided, that the foregoing exception shall not apply to the SPC IP Rights with
respect to "Intelligent Formatting".
 

<PAGE>

     (b) The  execution,  delivery and  performance  of this  Agreement  and the
consummation  of the  transactions  contemplated  hereby will not  constitute  a
breach of any  instrument or agreement  governing any SPC IP Rights (the "SPC IP
Rights  Agreements"),  will not cause the forfeiture or termination or give rise
to a right of forfeiture or termination of any SPC IP Rights or impair the right
of SPC and its subsidiaries,  the Surviving  Corporation or Allegro to use, sell
or license any SPC IP Rights or portion  thereof,  except for the  occurrence of
any  such  breach,   forfeiture,   termination  or  impairment  that  would  not
individually or in the aggregate, result in a Material Adverse Effect on SPC.
 
     (c)  To  the  knowledge  of SPC  and  its  subsidiaries,  (i)  neither  the
manufacture,  marketing,  license,  sale  or  intended  use  of any  product  or
technology  currently licensed or sold or under development by SPC or any of its
subsidiaries  violates  any  license  or  agreement  between  SPC  or any of its
subsidiaries and any third party or infringes any intellectual property right of
any other  party;  and (ii) there is no  pending  or, to the  knowledge  of SPC,
threatened claim,  arbitration or litigation contesting the validity,  ownership
or right to use,  sell,  license or  dispose  of any SPC IP Rights,  nor has SPC
received  any written  notice  asserting  that any SPC IP Rights or the proposed
use, sale,  license or disposition  thereof  conflicts or will conflict with the
rights of any other party, except, with respect to clauses (i) and (ii), for any
violations,  infringements,  claims or litigation that would not have a Material
Adverse Effect on SPC.
 
     (d) SPC has taken  reasonable and  practicable  steps designed to safeguard
and maintain the secrecy and  confidentiality of, and its proprietary rights in,
all SPC IP Rights.
 
     2.10 Compliance; Permits; Restrictions.
 
     (a) Neither SPC nor any of its  subsidiaries  is in  conflict  with,  or in
default or  violation  of, (i) any law,  rule,  regulation,  order,  judgment or
decree  applicable to SPC or any of its  subsidiaries  or by which its or any of
their  respective  properties  is bound or  affected,  or (ii) any  note,  bond,
mortgage,  indenture,  contract, agreement, lease, license, permit, franchise or
other  instrument  or obligation  to which SPC or any of its  subsidiaries  is a
party  or by  which  SPC  or  any of  its  subsidiaries  or its or any of  their
respective properties is bound or affected,  except for any conflicts,  defaults
or  violations  which  would  not have a  Material  Adverse  Effect  on SPC.  No
investigation  or review by any  governmental or regulatory body or authority is
pending or, to the knowledge of SPC, threatened against SPC or its subsidiaries,
nor has any governmental or regulatory body or authority  indicated an intention
to conduct the same,  other than, in each such case,  those the outcome of which
would not have a Material Adverse Effect on SPC.
 
     (b)  SPC  and its  subsidiaries  hold  all  permits,  licenses,  variances,
exemptions,  orders  and  approvals  from  governmental  authorities  which  are
material to the operation of the business of SPC and its subsidiaries taken as a
whole  (collectively,  the  "SPC  Permits").  SPC  and its  subsidiaries  are in
compliance  with the terms of SPC Permits,  except where the failure to hold the
same or to so comply would not have a Material Adverse Effect on SPC.
 
     2.11 Litigation.  There is no action, suit, proceeding,  claim, arbitration
or  investigation  pending,  or as to which SPC or any of its  subsidiaries  has
received any notice of  assertion  nor, to SPC's  knowledge,  is there a written
threat of an action,  suit,  proceeding,  claim,  arbitration  or  investigation
against  SPC or any of its  subsidiaries  which  would have a  Material  Adverse
Effect on SPC, or which in any manner  challenges  or seeks to prevent,  enjoin,
alter or delay any of the transactions contemplated by this Agreement.
 
     2.12  Brokers'  and  Finders'  Fees.  Except for fees  payable to Unterberg
Harris disclosed to Allegro, SPC has not incurred,  nor will it incur,  directly
or  indirectly,  any  liability  for  brokerage  or  finders'  fees  or  agents'
commissions  or any similar  charges in  connection  with this  Agreement or any
transaction contemplated hereby.
 

<PAGE>

     2.13 Employee Benefit Plans.
 
     (a)  With  respect  to  each  material  employee  benefit  plan,   program,
arrangement and contract (including,  without limitation,  any "employee benefit
plan" as defined in Section 3(3) of the Employee  Retirement Income Security Act
of 1974, as amended ("ERISA"))  maintained or contributed to by SPC or any trade
or business (an "ERISA Affiliate") which is under common control with SPC within
the meaning of Section 414 of the Code (the "SPC Employee Plans"),  SPC has made
available to Allegro a true and complete copy of, to the extent applicable,  (i)
such SPC Employee  Plan,  (ii) the most recent annual report (Form 5500),  (iii)
each trust  agreement  related to such SPC Employee  Plan,  (iv) the most recent
summary plan description for each SPC Employee Plan for which such a description
is required,  (v) the most recent  actuarial report relating to any SPC Employee
Plan  subject  to Title IV of ERISA  and  (vi)  the most  recent  United  States
Internal Revenue Service ("IRS") determination letter issued with respect to any
SPC Employee Plan.
 
     (b) Each SPC Employee Plan which is intended to be qualified  under Section
401(a) of the Code has received a favorable  determination from the IRS covering
the provisions of the Tax Reform Act of 1986 stating that such SPC Employee Plan
is so  qualified  and  nothing has  occurred  since the date of such letter that
could  reasonably be expected to affect the qualified  status of such plan. Each
SPC Employee Plan has been operated in all material  respects in accordance with
its terms and the  requirements  of  applicable  law.  Neither SPC nor any ERISA
Affiliate  of SPC has incurred or is  reasonably  expected to incur any material
liability under Title IV of ERISA in connection with any SPC Employee Plan.
 
     (c) Neither SPC nor any ERISA Affiliate thereof has withdrawn in a complete
or partial withdrawal from any multi-employer plan within the meaning of Section
4001(a)(3)  of ERISA  prior to the  Effective  Time.  Neither  SPC nor any ERISA
Affiliate  thereof has  contributed  to or been  obligated to  contribute to any
multi-employer plan within the meaning of Section 4001(a)(3) of ERISA.
 
     2.14 Absence of Liens and  Encumbrances.  SPC and each of its  subsidiaries
has good and valid  title to, or, in the case of leased  properties  and assets,
valid  leasehold  interests  in, all of its  material  tangible  properties  and
assets,  real,  personal and mixed, used in its business,  free and clear of any
liens or  encumbrances  except as reflected in the SPC Financials and except for
liens for  taxes not yet due and  payable  and such  imperfections  of title and
encumbrances, if any, which would not have a Material Adverse Effect on SPC.
 
     2.15 Environmental Matters.
 
     (a) Hazardous Material.  Except as would not have a Material Adverse Effect
on SPC, no  underground  storage tanks and no amount of any  substance  that has
been designated by any Governmental  Entity or by applicable  federal,  state or
local law to be radioactive, toxic, hazardous or otherwise a danger to health or
the environment,  including,  without  limitation,  PCBs,  asbestos,  petroleum,
urea-formaldehyde  and all substances listed as hazardous substances pursuant to
the Comprehensive  Environmental  Response,  Compensation,  and Liability Act of
1980, as amended,  or defined as a hazardous waste pursuant to the United States
Resource  Conservation and Recovery Act of 1976, as amended, and the regulations
promulgated  pursuant to said laws,  (a  "Hazardous  Material"),  but  excluding
office and janitorial supplies, are present in the soil,  groundwater,  building
materials  or ambient air of any real  property  currently  occupied by SPC as a
result of the deliberate actions of SPC or any of its subsidiaries,  and SPC has
not  received  any  notice  that it is  allegedly  liable  for the  presence  of
Hazardous  Materials in, on or under any other property,  including the land and
the improvements, ground water and surface water thereof, that SPC or any of its
subsidiaries has at any time owned, operated, occupied or leased.
 
     (b)  Hazardous  Materials  Activities.  Except as would not have a Material
Adverse Effect on SPC,  neither SPC nor any of its subsidiaries has transported,
stored,  used,  manufactured,  disposed of, released or exposed its employees or
others to Hazardous Materials in violation of any law in effect on or before the
Closing Date, nor has SPC or any of its subsidiaries  disposed of,  transported,
sold, or manufactured any product containing a Hazardous Material  (collectively
"Hazardous Materials Activities") in violation of any rule,  regulation,  treaty
or statute  promulgated by any  Governmental  Entity in effect prior to or as of
the date hereof to  prohibit,  regulate or control  Hazardous  Materials  or any
Hazardous Material Activity.
 

<PAGE>

     (c) Permits.  SPC and its  subsidiaries  currently  hold all  environmental
approvals,  permits,  licenses,  clearances and consents (the "SPC Environmental
Permits")  necessary  for the conduct of SPC's and its  subsidiaries'  Hazardous
Material  Activities as currently  conducted and other businesses of SPC and its
subsidiaries as such  activities and businesses are currently  being  conducted,
except where the failure to so hold would not have a Material  Adverse Effect on
SPC.
 
     (d) Environmental Liabilities.  No material action, proceeding,  revocation
proceeding,  amendment  procedure,  writ,  injunction or claim is pending, or to
SPC's  knowledge,  threatened  concerning  any SPC  Environmental  Permit or any
Hazardous Materials Activity of SPC or any of its subsidiaries. SPC is not aware
of any fact or circumstance  which could involve SPC or any of its  subsidiaries
in any  environmental  litigation or impose upon SPC or any of its  subsidiaries
any environmental liability that would have a Material Adverse Effect on SPC.
 
     2.16  Labor  Matters.  To  SPC's  knowledge,  there  are no  activities  or
proceedings  of any labor union to organize  any  employees of SPC or any of its
subsidiaries and there are no strikes, or material slowdowns,  work stoppages or
lockouts,  or threats  thereof by or with respect to any employees of SPC or any
of its  subsidiaries.  SPC and its  subsidiaries are and have been in compliance
with all applicable laws regarding employment practices, terms and conditions of
employment,  and wages  and  hours  (including,  without  limitation,  ERISA (as
defined  below),  WARN or any  similar  state  or  local  law),  except  for any
noncompliance that would not have a Material Adverse Effect on SPC.
 
     2.17 Agreements,  Contracts and Commitments. Except as set forth in the SPC
Schedules, neither SPC nor any of its subsidiaries is a party to or is bound by:
 
          (a) any collective bargaining agreements;
 
          (b) any bonus, deferred compensation, incentive compensation, pension,
     profit-sharing or retirement plans, or any other employee benefit plans or
     arrangements;
 
          (c) any employment or consulting agreement, contract or commitment
     with any officer or director level employee, not terminable by SPC or any
     of its subsidiaries on thirty days notice without liability, except to the
     extent general principles of wrongful termination law may limit SPC's or
     any of its subsidiaries, ability to terminate employees at will;
 
          (d) any agreement or plan, including, without limitation, any stock
     option plan, stock appreciation right plan or stock purchase plan, any of
     the benefits of which will be increased, or the vesting of 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;
 
          (e) any agreement of indemnification or guaranty not entered into in
     the ordinary course of business other than indemnification agreements
     between SPC or any of its subsidiaries and any of its officers or
     directors;
 
          (f) any agreement, contract or commitment containing any covenant
     limiting the freedom of SPC or any of its subsidiaries to engage in any
     line of business or compete with any person;
 
          (g) any agreement, contract or commitment relating to capital
     expenditures and involving future obligations in excess of $50,000 and not
     cancelable without penalty;
 

<PAGE>

          (h) any agreement, contract or commitment currently in force relating
     to the disposition or acquisition of assets not in the ordinary course of
     business or any ownership interest in any corporation, partnership, joint
     venture or other business enterprise;
 
          (i) any mortgages, indentures, loans or credit agreements, security
     agreements or other agreements or instruments relating to the borrowing of
     money or extension of credit;
 
          (j) any joint marketing or development agreement (excluding agreements
     with resellers, value added resellers or independent software vendors
     entered into in the ordinary course of business that do not permit such
     resellers or vendors to modify SPC's or any of its subsidiaries' software
     products);
 
          (k) any distribution agreement (identifying any that contain
     exclusivity provisions); or
 
          (l) any other agreement, contract or commitment (excluding real and
     personal property leases) which involve payment by SPC or any of its
     subsidiaries under any such agreement, contract or commitment of $50,000 or
     more in the aggregate and is not cancelable without penalty within thirty
     (30) days.
 
     Neither SPC nor any of its  subsidiaries,  nor to SPC's knowledge any other
party to an SPC Contract (as defined below), has breached, violated or defaulted
under, or received notice that it has breached  violated or defaulted under, any
of the  material  terms or  conditions  of any of the  agreements,  contracts or
commitments  to  which  SPC is a party  or by  which  it is  bound  of the  type
described  in clauses  (a) through  (l) above (any such  agreement,  contract or
commitment,  an "SPC Contract") in such a manner as would permit any other party
to cancel or terminate any such SPC Contract, or would permit any other party to
seek damages, which would have a Material Adverse Effect on SPC.
 
     2.18 Change of Control Payments.  There are no plans or agreements pursuant
to which any amounts may become payable (whether  currently or in the future) to
current or former  officers or directors of SPC as a result of or in  connection
with the Merger.
 
     2.19 Statements;  Proxy  Statement/Prospectus.  The information supplied by
SPC for inclusion in the  Registration  Statement (as defined in Section 2.4(b))
shall not, at the time the  Registration  Statement is filed with the SEC and at
the time it becomes  effective  under the  Securities  Act,  contain  any untrue
statement of a material  fact or omit to state any material  fact required to be
stated  therein  or  necessary  in  order  to make the  statements  therein  not
misleading.  The  information  supplied  by  SPC  for  inclusion  in  the  proxy
statement/prospectus  to be sent to the  stockholders of SPC and stockholders of
Allegro in  connection  with the meeting of SPC's  stockholders  to consider the
approval of this Agreement (the "SPC  Stockholders'  Meeting") and in connection
with the meeting of  Allegro's  stockholders  to consider  the  approval of this
Agreement (the "Allegro Stockholders' Meeting") (such proxy statement/prospectus
as amended or supplemented is referred to herein as the "Proxy Statement") shall
not, on the date the Proxy Statement is first mailed to SPC's  stockholders  and
Allegro's  stockholders,  at the time of the SPC  Stockholders'  Meeting  or the
Allegro  Stockholders'  Meeting and at the  Effective  Time,  contain any untrue
statement of a material  fact or omit to state any material  fact required to be
stated therein or necessary in order to make the statements therein, in light of
the circumstances under which they are made, not false or misleading; or omit to
state any  material  fact  necessary  to correct  any  statement  in any earlier
communication   with  respect  to  the  solicitation  of  proxies  for  the  SPC
Stockholders'  Meeting or the  Allegro  Stockholders'  Meeting  which has become
false or misleading.  The Proxy Statement will comply as to form in all material
respects with the  provisions of the Exchange Act and the rules and  regulations
thereunder.  If at any time prior to the Effective  Time,  any event relating to
SPC or any of its affiliates,  officers or directors should be discovered by SPC
which  should be set forth in an amendment  to the  Registration  Statement or a
supplement  to  the  Proxy   Statement,   SPC  shall  promptly  inform  Allegro.
Notwithstanding  the  foregoing,  SPC makes no  representation  or warranty with
respect to any information  supplied by Allegro or Merger Sub which is contained
in any of the foregoing documents.
 

<PAGE>

     2.20 Board  Approval.  The Board of Directors of SPC has, as of the date of
this  Agreement,  determined  (i)  that  the  Merger  is fair to and in the best
interests  of  SPC  and  its  stockholders,  and  (ii)  to  recommend  that  the
stockholders of SPC approve this Agreement.
 
     2.21 Minute  Books.  The minute books of SPC made  available to counsel for
Allegro  are the only  minute  books of SPC and  contain a  reasonably  accurate
summary,  in all material respects,  of all meetings of directors (or committees
thereof)  and  stockholders  or  actions by  written  consent  since the time of
incorporation of SPC.
 
                                   ARTICLE III
 
            REPRESENTATIONS AND WARRANTIES OF ALLEGRO AND MERGER SUB
 
     Allegro  and  Merger  Sub  represent  and  warrant  to SPC,  subject to the
exceptions  specifically  disclosed in the disclosure letter supplied by Allegro
to SPC (the "Allegro Schedules"), as follows:
 
     3.1 Organization of Allegro.  Allegro and each of its material subsidiaries
is a corporation duly organized, validly existing and in good standing under the
laws of the jurisdiction of its  incorporation,  has the 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 in good standing as a foreign  corporation in each jurisdiction in which the
failure to be so  qualified  would have a Material  Adverse  Effect (as  defined
below) on Allegro.  Allegro has delivered to SPC a true and complete list of all
of Allegro's  subsidiaries,  together with the  jurisdiction of incorporation of
each subsidiary and Allegro's equity interest therein.  Allegro has delivered or
made available a true and correct copy of the Certificate of  Incorporation  and
Bylaws of Allegro and similar governing instruments of its subsidiaries, each as
amended to date, to counsel for SPC. When used in connection  with Allegro,  the
term  "Material  Adverse  Effect"  means,  for purposes of this  Agreement,  any
change,  event or effect  that is  materially  adverse to the  business,  assets
(including  intangible assets),  financial condition or results of operations of
Allegro  and its  subsidiaries  taken as a whole;  provided,  however,  that the
continuation of current trends in such business,  assets  (including  intangible
assets),  financial  condition  or  results  of  operations  (including  without
limitation  further losses) shall not be deemed to constitute a Material Adverse
Effect,  but material  deviations  therefrom shall constitute a Material Adverse
Effect.
 
     3.2 Allegro  Capital  Structure.  The  authorized  capital stock of Allegro
consists of  18,000,000  shares of Common Stock,  par value $.001 per share,  of
which there were 4,444,477  shares issued and outstanding as of October 1, 1996,
2,000,000 shares of Class A Preferred Stock, par value $.001 per share, of which
there were no shares issued and outstanding as of October 1, 1996, 60,520 shares
of Class B Voting  Preferred  Stock,  par value $.001 per share,  of which there
were 60,520  shares issued and  outstanding  as of October 1, 1996 and 1,939,480
shares of Serial  Preferred Stock, par value $.001 per share, of which no shares
were issued or outstanding  as of October 1, 1996. The authorized  capital stock
of Merger Sub  consists  of 1,000  shares of Common  Stock,  par value $.001 per
share,  100 shares of which,  as of the date hereof,  are issued and outstanding
and are held by Allegro.  All outstanding  shares of the Common Stock of Allegro
are duly authorized,  validly issued,  fully paid and non-assessable and are not
subject  to  preemptive   rights   created  by  statute,   the   Certificate  of
Incorporation or Bylaws of Allegro or any agreement or document to which Allegro
is a party or by which it is bound. As of October 1, 1996,  Allegro had reserved
an aggregate of 1,500,000 shares of Common Stock, net of exercises, for issuance
to employees,  consultants and non-employee directors pursuant to Allegro's 1994
Long-Term  Incentive  Plan and Allegro's  Outside  Directors and Advisors  Stock
Option Plan  (collectively,  the  "Allegro  Stock  Option  Plans"),  under which
options are outstanding  for an aggregate  1,106,115  shares.  All shares of the

<PAGE>

Common Stock of Allegro subject to issuance as aforesaid,  upon issuance on
the terms and conditions specified in the instruments pursuant to which they are
issuable,   would  be  duly   authorized,   validly   issued,   fully  paid  and
nonassessable.  The Allegro  Schedules list each  outstanding  option to acquire
shares of the Common Stock  Allegro at June 30, 1996,  the name of the holder of
such option,  the number of shares subject to such option, the exercise price of
such  option,  the number of shares as to which such  option will have vested at
such date and whether the  exercisability  of such option will be accelerated in
any way by the  transactions  contemplated  by this  Agreement  or for any other
reason, and indicate the extent of acceleration, if any.
 
     3.3  Obligations  With  Respect  to Capital  Stock.  Except as set forth in
Section  3.2,  there are no equity  securities  of any class of Allegro,  or any
securities  exchangeable  or  convertible  into or  exercisable  for such equity
securities, issued, reserved for issuance or outstanding.  Except for securities
Allegro owns, directly or indirectly through one or more subsidiaries, there are
no equity securities of any class of any subsidiary of Allegro,  or any security
exchangeable  or  convertible  into or exercisable  for such equity  securities,
issued,  reserved  for issuance or  outstanding.  Except as set forth in Section
3.2, there are no options, warrants, equity securities, calls, rights (including
preemptive rights),  commitments or agreements of any character to which Allegro
or any of its subsidiaries is a party or by which it is bound obligating Allegro
or any of its  subsidiaries  to issue,  deliver or sell,  or cause to be issued,
delivered or sold,  or  repurchase,  redeem or otherwise  acquire,  or cause the
repurchase, redemption or acquisition, of any shares of capital stock of Allegro
or any of its  subsidiaries or obligating  Allegro or any of its subsidiaries to
grant, extend, accelerate the vesting of or enter into any such option, warrant,
equity security, call, right, commitment or agreement. There are no registration
rights and, to the knowledge of Allegro there are no voting  trusts,  proxies or
other  agreements or  understandings  with respect to any equity security of any
class of Allegro or with  respect to any equity  security of any class of any of
its subsidiaries.
 
     3.4 Authority.
 
     (a) Each of Allegro and Merger Sub has all  requisite  corporate  power and
authority  to enter  into this  Agreement  and to  consummate  the  transactions
contemplated  hereby.  The  execution  and  delivery of this  Agreement  and the
consummation of the transactions  contemplated  hereby have been duly authorized
by all  necessary  corporate  action on the part of Allegro  and, in the case of
this  Agreement,  Merger  Sub,  subject  only to the  approval  of the merger by
Allegro's  stockholders  as  contemplated  in  Section  5.2 and the  filing  and
recordation  of the  Certificate  of  Merger  pursuant  to  Delaware  Law.  This
Agreement has been duly executed and delivered by each of Allegro and Merger Sub
and, assuming the due authorization, execution and delivery of this Agreement by
SPC, this  Agreement  constitutes  the valid and binding  obligations of each of
Allegro and Merger Sub,  enforceable  in  accordance  with its terms,  except as
enforceability  may be limited by bankruptcy  and other similar laws and general
principles of equity.  The  execution and delivery of this  Agreement by each of
Allegro and Merger Sub do not, and the  performance of this Agreement by each of
Allegro and Merger Sub will not, (i) conflict with or violate the Certificate of
Incorporation or Bylaws of Allegro or the Certificate of Incorporation or Bylaws
of Merger Sub or the  equivalent  organizational  documents  of any of its other
subsidiaries,  (ii) subject to obtaining the approval of the Merger by Allegro's
stockholders as contemplated in Section 5.2 and compliance with the requirements
set forth in Section  3.4(b)  below,  conflict  with or violate  any law,  rule,
regulation,  order,  judgment  or decree  applicable  to  Allegro  or any of its
subsidiaries  (including  Merger Sub) or by which its or any of their respective
properties is bound or affected,  or (iii) result in any breach of or constitute
a default (or an event that with notice or lapse of time or both would  become a

<PAGE>

default) under, or impair Allegro's rights or alter the rights or obligations of
any third party under, or give to others any rights of  termination,  amendment,
acceleration  or  cancellation  of,  or  result  in the  creation  of a lien  or
encumbrance  on  any  of the  properties  or  assets  of  Allegro  or any of its
subsidiaries  (including  Merger Sub)  pursuant  to, any note,  bond,  mortgage,
indenture,  contract,  agreement,  lease,  license,  permit,  franchise or other
instrument or obligation to which Allegro or any of its subsidiaries  (including
Merger  Sub)  is a  party  or by  which  Allegro  or any of  its  sub  sidiaries
(including Merger Sub) or its or any of their respective properties are bound or
affected,  except,  with  respect  to  clauses  (ii)  and  (iii),  for any  such
conflicts,  violations,  defaults  or other  occurrences  that  would not have a
Material  Adverse  Effect on Allegro.  The Allegro  Schedules  list all material
consents,   waivers  and  approvals  under  any  of  Allegro's  or  any  of  its
subsidiaries' agreements,  contracts, licenses or leases required to be obtained
in connection with the consummation of the transactions contemplated hereby.

     (b) No  consent,  approval,  order or  authorization  of, or  registration,
declaration  or  filing  with any  Governmental  Entity is  required  by or with
respect to Allegro or Merger Sub in  connection  with the execution and delivery
of this Agreement or the consummation of the transactions  contemplated  hereby,
except  for  (i)  the  filing  of the  Registration  Statement  with  the SEC in
accordance with the Securities Act, (ii) the filing of the Certificate of Merger
with the  Secretary of State of the State of  Delaware,  (iii) the filing of the
Proxy  Statement  with the SEC in  accordance  with the Exchange  Act,  (iv) the
filing of a  Current  Report on Form 8-K with the SEC,  (v) the  listing  of the
Allegro  Common  Stock  on the  Nasdaq  SmallCap  Market,  (vi)  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 (vii) such other consents,  authorizations,  filings,
approvals and  registrations  which,  if not obtained or made,  would not have a
Material  Adverse Effect on SPC or Allegro or have a material  adverse effect on
the ability of the parties to consummate the Merger.
 
     3.5 Section 203 of the Delaware General Corporation Law Not Applicable. The
Board of  Directors  of Allegro has taken all  actions so that the  restrictions
contained in Section 203 of the Delaware General Corporation Law applicable to a
"business  combination"  (as  defined  in  Section  203)  will not  apply to the
execution,  delivery or performance of this Agreement or to the  consummation of
the Merger or the other transactions contemplated by this Agreement.
 
     3.6 SEC Filings; Allegro Financial Statements.
 
     (a) Allegro has filed all forms, reports and documents required to be filed
with the SEC since and including  December  1995,  and has made available to SPC
such  forms,  reports  and  documents  in the form filed with the SEC.  All such
required  forms,  reports and documents  (including  those that Allegro may file
subsequent  to the date  hereof)  are  referred  to herein as the  "Allegro  SEC
Reports."  As of their  respective  dates,  the  Allegro  SEC  Reports  (i) were
prepared  in  accordance  with the  requirements  of the  Securities  Act or the
Exchange  Act,  as the case may be,  and the  rules and  regulations  of the SEC
thereunder  applicable to such Allegro SEC Reports, 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  therein
or  necessary  in order  to make the  statements  therein,  in the  light of the
circumstances  under which they were made,  not  misleading.  None of  Allegro's
subsidiaries is required to file any forms,  reports or other documents with the
SEC.
 
     (b) Each of the consolidated financial statements (including, in each case,
any related  notes  thereto)  contained  in Allegro SEC  Reports  (the  "Allegro
Financials"),  including  any Allegro  SEC  Reports  filed after the date hereof
until the Closing,  (x) complied as to form in all  material  respects  with the
published  rules  and  regulations  of the SEC  with  respect  thereto,  (y) was
prepared in accordance with generally accepted  accounting  principles  ("GAAP")
applied on a consistent  basis throughout the periods involved (except as may be
indicated in the notes  thereto or, in the case of unaudited  interim  financial
statements,  as may be  permitted  by the SEC on Form 10-QSB  under the Exchange
Act) and (z) fairly presented the consolidated financial position of Allegro and
its subsidiaries as at the respective dates thereof and the consolidated results
of its  operations  and cash flows for the  periods  indicated,  except that the
unaudited  interim  financial  statements  were or are  subject  to  normal  and

<PAGE>

recurring  year-end  adjustments  which  were not,  or are not  expected  to be,
material  in amount.  The  balance  sheet of Allegro  contained  in Allegro  SEC
Reports as of June 30, 1996 is hereinafter  referred to as the "Allegro  Balance
Sheet." Except as disclosed in the Allegro  Financials,  neither Allegro nor any
of its  subsidiaries  has any  liabilities  (absolute,  accrued,  contingent  or
otherwise)  of a nature  required to be disclosed  on a balance  sheet or in the
related notes to the consolidated  financial  statements  prepared in accordance
with GAAP which are, individually or in the aggregate, material to the business,
results of  operations  or financial  condition of Allegro and its  subsidiaries
taken as a whole,  except  liabilities  (i) provided for in the Allegro  Balance
Sheet,  or (ii)  incurred  since the date of the  Allegro  Balance  Sheet in the
ordinary course of business consistent with past practices.
 
     (c) Allegro has heretofore  furnished to SPC a complete and correct copy of
any amendments or modifications,  which have not yet been filed with the SEC but
which are required to be filed,  to agreements,  documents or other  instruments
which  previously  had  been  filed by  Allegro  with  the SEC  pursuant  to the
Securities Act or the Exchange Act.
 
     3.7  Absence of Certain  Changes or Events.  Since the date of the  Allegro
Balance Sheet through the date of this  Agreement,  there has not been:  (i) any
Material  Adverse Effect on Allegro,  (ii) any material change by Allegro in its
accounting  methods,  principles or practices,  except as required by concurrent
changes in GAAP, or (iii) any revaluation by Allegro of any of its assets having
a Material Adverse Effect on Allegro,  including,  without  limitation,  writing
down the value of  capitalized  software  or  inventory  or writing off notes or
accounts receivable other than in the ordinary course of business.
 
     3.8 Taxes.  Allegro and each of its  subsidiaries has filed all tax returns
required  to be filed by any of them  and has paid (or  Allegro  has paid on its
behalf),  or has set up an adequate  reserve  for the  payment of, all  material
taxes required to be paid as shown on such returns and the most recent financial
statements  contained in the Allegro SEC Reports reflect an adequate reserve for
all material taxes payable by Allegro and its  subsidiaries  accrued through the
date of such financial statements. Except as reasonably would not be expected to
have a Material  Adverse Effect on Allegro,  no deficiencies  for any taxes have
been proposed, asserted or assessed against Allegro or any of its subsidiaries.
 
     3.9 Intellectual Property.
 
     (a) To the  knowledge  of Allegro  and its  subsidiaries,  Allegro  and its
subsidiaries  own,  or have  the  right to use,  sell or  license  all  patents,
trademarks,  trade  names,  service  marks,  copyrights  and other  intellectual
property necessary or required for the conduct of their respective businesses as
presently  conducted  (such  intellectual  property  and the rights  thereto are
collectively  referred  to herein as the  "Allegro IP  Rights"),  except for any
failure to own or have the right to use,  sell or license  that would not have a
Material Adverse Effect on Allegro.
 
     (b) The  execution,  delivery and  performance  of this  Agreement  and the
consummation  of the  transactions  contemplated  hereby will not  constitute  a
breach of any  instrument  or  agreement  governing  any  Allegro IP Rights (the
"Allegro IP Rights Agreements"), will not cause the forfeiture or termination or
give rise to a right of  forfeiture or  termination  of any Allegro IP Rights or
impair the right of Allegro  and its  subsidiaries  to use,  sell or license any
Allegro IP Rights or portion  thereof,  except  for the  occurrence  of any such
breach, forfeiture,  termination or impairment that would not individually or in
the aggregate, result in a Material Adverse Effect on Allegro.
 
     (c) To the  knowledge  of Allegro  and its  subsidiaries,  (i)  neither the
manufacture,  marketing,  license,  sale  or  intended  use  of any  product  or
technology  currently licensed or sold or under development by Allegro or any of
its subsidiaries violates any license or agreement between Allegro or any of its
subsidiaries and any third party or infringes any intellectual property right of
any other party;  and (ii) there is no pending or, to the  knowledge of Allegro,
threatened claim,  arbitration or litigation contesting the validity,  ownership
or right to use,  sell,  license or dispose  of any  Allegro IP Rights,  nor has
Allegro  received any written notice asserting that any Allegro IP Rights or the
proposed use, sale,  license or disposition  thereof  conflicts or will conflict
with the rights of any other  party,  except,  with  respect to clauses  (i) and
(ii), for any  violations,  infringements,  claims or litigation  that would not
have a Material Adverse Effect on Allegro.
 

<PAGE>

     (d)  Allegro  has  taken  reasonable  and  practicable  steps  designed  to
safeguard and maintain the secrecy and  confidentiality  of, and its proprietary
rights in, all Allegro IP Rights.
 
     3.10 Compliance; Permits; Restrictions.
 
     (a) Neither Allegro nor any of its  subsidiaries is in conflict with, or in
default or  violation  of, (i) any law,  rule,  regulation,  order,  judgment or
decree  applicable to Allegro or any of its  subsidiaries or by which its or any
of their  respective  properties is bound or affected,  or (ii) any note,  bond,
mortgage,  indenture,  contract, agreement, lease, license, permit, franchise or
other  instrument or obligation to which Allegro or any of its subsidiaries is a
party  or by which  Allegro  or any of its  subsidiaries  or its or any of their
respective properties is bound or affected,  except for any conflicts,  defaults
or  violations  which would not have a Material  Adverse  Effect on Allegro.  No
investigation  or review by any  governmental  or, to the  knowledge of Allegro,
regulatory  body or authority is pending or  threatened  against  Allegro or its
subsidiaries, nor has any governmental or regulatory body or authority indicated
an  intention  to conduct  the same,  other than,  in each such case,  those the
outcome of which would not have a Material Adverse Effect on Allegro.

     (b) Allegro and its  subsidiaries  hold all permits,  licenses,  variances,
exemptions,  orders  and  approvals  from  governmental  authorities  which  are
material to the operation of the business of Allegro and its subsidiaries  taken
as a whole (collectively,  the "Allegro Permits").  Allegro and its subsidiaries
are in compliance with the terms of Allegro Permits, except where the failure to
hold the same or to so  comply  would  not have a  Material  Adverse  Effect  on
Allegro.
 
     3.11 Litigation.  There is no action, suit, proceeding,  claim, arbitration
or investigation  pending, or as to which Allegro or any of its subsidiaries has
received any notice of assertion nor, to Allegro's knowledge, is there a written
threat of an action,  suit,  proceeding,  claim,  arbitration  or  investigation
against Allegro or any of its  subsidiaries  which would have a Material Adverse
Effect  on  Allegro,  or which in any  manner  challenges  or seeks to  prevent,
enjoin, alter or delay any of the transactions contemplated by this Agreement.
 
     3.12 Brokers' and Finders'  Fees.  Except for fees payable to Frost Capital
Partners, Inc. and Joseph Abrams disclosed to SPC, Allegro has not incurred, nor
will it incur,  directly or indirectly,  any liability for brokerage or finders'
fees or agents'  commissions  or any  similar  charges in  connection  with this
Agreement or any transaction contemplated hereby.
 
     3.13 Employee Benefit Plans.
 
     (a)  With  respect  to  each  material  employee  benefit  plan,   program,
arrangement and contract (including,  without limitation,  any "employee benefit
plan" as defined in  Section  3(3) of ERISA)  maintained  or  contributed  to by
Allegro  or any ERISA  Affiliate  thereof  which is under  common  control  with
Allegro  within the  meaning of Section 414 of the Code (the  "Allegro  Employee
Plans"),  Allegro has made  available to SPC a true and complete copy of, to the
extent  applicable,  (i) such Allegro Employee Plan, (ii) the most recent annual
report (Form 5500),  (iii) each trust agreement related to such Allegro Employee
Plan, (iv) the most recent summary plan  description  for each Allegro  Employee
Plan for which such a  description  is required,  (v) the most recent  actuarial
report  relating to any Allegro  Employee  Plan subject to Title IV of ERISA and
(vi) the most recent IRS determination letter issued with respect to any Allegro
Employee Plan.
 
     (b) Each  Allegro  Employee  Plan which is intended to be  qualified  under
Section 401(a) of the Code has received a favorable  determination  from the IRS
covering the  provisions of the Tax Reform Act of 1986 stating that such Allegro
Employee  Plan is so qualified  and nothing has occurred  since the date of such
letter that could  reasonably be expected to affect the qualified status of such
plan. Each Allegro  Employee Plan has been operated in all material  respects in
accordance  with its terms  and the  requirements  of  applicable  law.  Neither
Allegro  nor any ERISA  Affiliate  of  Allegro  has  incurred  or is  reasonably
expected to incur any material  liability  under Title IV of ERISA in connection
with any Allegro Employee Plan.
 

<PAGE>

     (c) Neither  Allegro nor any ERISA  Affiliate  thereof has  withdrawn  in a
complete or partial withdrawal from any  multi-employer  plan within the meaning
of Section  4001(a)(3) of ERISA prior to the Effective Time. Neither Allegro nor
any ERISA  Affiliate  thereof has contributed to or been obligated to contribute
to any multi-employer plan within the meaning of Section 4001(a)(3) of ERISA.
 
     3.14  Absence  of  Liens  and   Encumbrances.   Allegro  and  each  of  its
subsidiaries  has good and valid title to, or, in the case of leased  properties
and  assets,  valid  leasehold  interests  in,  all  of  its  material  tangible
properties and assets, real, personal and mixed, used in its business,  free and
clear of any liens or encumbrances except as reflected in the Allegro Financials
and except for liens for taxes not yet due and payable and such imperfections of
title and  encumbrances,  if any, which would not have a Material Adverse Effect
on Allegro.
 
     3.15 Environmental Matters.
 
     (a) Hazardous Material.  Except as would not have a Material Adverse Effect
on  Allegro,  no  underground  storage  tanks and no  Hazardous  Materials  (but
excluding office and janitorial supplies) are present in the soil, ground water,
building  materials or ambient air of any real  property  currently  occupied by
SPC,  as  a  result  of  the  deliberate  actions  of  Allegro  or  any  of  its
subsidiaries,  and Allegro  has not  received  any notice  that it is  allegedly
liable  for the  presence  of  Hazardous  Materials  in,  on or under  any other
property,  including  the land and the  improvements,  ground  water and surface
water thereof, that Allegro has at any time owned, operated, occupied or leased.
 
     (b)  Hazardous  Materials  Activities.  Except as would not have a Material
Adverse  Effect on  Allegro,  neither  Allegro nor any of its  subsidiaries  has
transported,  stored, used,  manufactured,  disposed of, released or exposed its
employees or others to Hazardous  Materials in violation of any law in effect on
or before the Closing Date, nor has Allegro or any of its  subsidiaries  engaged
in any  Hazardous  Materials  Activities  in violation of any rule,  regulation,
treaty or statute  promulgated by any Governmental  Entity in effect prior to or
as of the date hereof to prohibit,  regulate or control  Hazardous  Materials or
any Hazardous Material Activity.
 
     (c) Permits.  Allegro and its subsidiaries currently hold all environmental
approvals,   permits,   licenses,   clearances   and  consents   (the   "Allegro
Environmental   Permits")  necessary  for  the  conduct  of  Allegro's  and  its
subsidiaries'  Hazardous  Material  Activities as currently  conducted and other
businesses of Allegro and its subsidiaries as such activities and businesses are
currently being conducted,  except where the failure to so hold would not have a
Material Adverse Effect on Allegro.
 
     (d) Environmental Liabilities.  No material action, proceeding,  revocation
proceeding,  amendment  procedure,  writ,  injunction or claim is pending, or to
Allegro's knowledge,  threatened  concerning any Allegro Environmental Permit or
any Hazardous Materials Activity of Allegro or any of its subsidiaries.  Allegro
is not aware of any fact or  circumstance  which could involve Allegro or any of
its subsidiaries in any  environmental  litigation or impose upon Allegro or any
of its  subsidiaries  any  environmental  liability  that  would have a Material
Adverse Effect on Allegro.
 
     3.16 Labor  Matters.  To Allegro's  knowledge,  there are no  activities or
proceedings  of any labor union to organize  any  employees of Allegro or any of
its subsidiaries and there are no strikes, or material slowdowns, work stoppages
or lockouts,  or threats  thereof by or with respect to any employees of Allegro
or any of its  subsidiaries.  Allegro and its  subsidiaries are and have been in
compliance with all applicable laws regarding  employment  practices,  terms and
conditions of employment,  and wages and hours (including,  without  limitation,
ERISA,  WARN or any similar  state or local law),  except for any  noncompliance
that would not have a Material Adverse Effect on Allegro.
 
     3.17  Agreements,  Contracts  and  Commitments.  Except as set forth in the
Allegro Schedules,  neither Allegro nor any of its subsidiaries is a party to or
is bound by:
 
          (a) any collective bargaining agreements;
 
          (b) any bonus, deferred compensation, incentive compensation, pension,
     profit-sharing or retirement plans, or any other employee benefit plans or
     arrangements;
 

<PAGE>

          (c) any employment or consulting agreement, contract or commitment
     with any officer or director level employee, not terminable by Allegro or
     any of its subsidiaries on thirty days notice without liability, except to
     the extent general principles of wrongful termination law may limit
     Allegro's or any of its subsidiaries' ability to terminate employees at
     will;
 
          (d) any agreement or plan, including, without limitation, any stock
     option plan, stock appreciation right plan or stock purchase plan, any of
     the benefits of which will be increased, or the vesting of 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;
 
          (e) any agreement of indemnification or guaranty not entered into in
     the ordinary course of business other than indemnification agreements
     between Allegro or any of its subsidiaries and any of its officers or
     directors;
 
          (f) any agreement, contract or commitment containing any covenant
     limiting the freedom of Allegro or any of its subsidiaries to engage in any
     line of business or compete with any person;
 
          (g) any agreement, contract or commitment relating to capital
     expenditures and involving future obligations in excess of $50,000 and not
     cancelable without penalty;
 
          (h) any agreement, contract or commitment currently in force relating
     to the disposition or acquisition of assets not in the ordinary course of
     business or any ownership interest in any corporation, partnership, joint
     venture or other business enterprise;
 
          (i) any mortgages, indentures, loans or credit agreements, security
     agreements or other agreements or instruments relating to the borrowing of
     money or extension of credit;
 
          (j) any joint marketing or development agreement (excluding agreements
     with resellers, value added resellers or independent software vendors
     entered into in the ordinary course of business that do not permit such
     resellers or vendors to modify Allegro's or any of its subsidiaries'
     software products);
 
          (k) any distribution agreement (identifying any that contain
     exclusivity provisions); or
 
          (l) any other agreement, contract or commitment (excluding real and
     personal property leases) which involves payment by Allegro or any of its
     subsidiaries under any such agreement, contract or commitment of $50,000 or
     more in the aggregate and is not cancelable without penalty within thirty
     (30) days.
 
     Neither Allegro nor any of its subsidiaries, nor to Allegro's knowledge any
other party to an Allegro Contract (as defined below), has breached, violated or
defaulted  under, or received notice that it has breached  violated or defaulted
under,  any  of the  material  terms  or  conditions  of any of the  agreements,
contracts or  commitments to which Allegro is a party or by which it is bound of
the type  described  in  clauses  (a)  through  (l) above  (any such  agreement,
contract or commitment,  an "Allegro Contract") in such a manner as would permit
any other  party to cancel or  terminate  any such  Allegro  Contract,  or would
permit any other  party to seek  damages,  which  would have a Material  Adverse
Effect on Allegro.
 
     3.18 Change of Control Payments.  There are no plans or agreements pursuant
to which any material  amounts may become payable  (whether  currently or in the
future) to current or former  officers or directors of Allegro as a result of or
in connection with the Merger.
 
     3.19 Statements;  Proxy  Statement/Prospectus.  The information supplied by
Allegro  for  inclusion  in the  Registration  Statement  (as defined in Section
2.4(b)) shall not at the time the  Registration  Statement is filed with the SEC
and at the time it becomes  effective  under the  Securities  Act,  contain  any
untrue  statement of a material fact or omit to state any material fact required

<PAGE>

to be stated  therein or necessary in order to make the  statements  therein not
misleading.  The  information  supplied  by Allegro for  inclusion  in the Proxy
Statement to be sent to the  stockholders of Allegro and the stockholders of SPC
in  connection  with the Allegro  Stockholders'  Meeting  and SPC  Stockholders'
Meeting shall not, on the date the Proxy  Statement is first mailed to Allegro's
stockholders  and  SPC's  stockholders,  at the  time of the  SPC  Stockholders'
Meeting or the Allegro  Stockholders' Meeting and at the Effective Time, contain
any untrue  statement  of a  material  fact or omit to state any  material  fact
required  to be stated  therein  or  necessary  in order to make the  statements
therein,  in light of the circumstances  under which they are made, not false or
misleading;  or omit to  state  any  material  fact  necessary  to  correct  any
statement  in any earlier  communication  with  respect to the  solicitation  of
proxies for the Allegro  Stockholders'  Meeting or the SPC Stockholders' Meeting
which has become false or misleading. The Proxy Statement will comply as to form
in all material  respects with the  provisions of the Exchange Act and the rules
and  regulations  thereunder.  If at any time prior to the Effective  Time,  any
event relating to Allegro or any of its affiliates, officers or directors should
be  discovered  by  Allegro  which  should be set forth in an  amendment  to the
Registration  Statement or a supplement  to the Proxy  Statement,  Allegro shall
promptly   inform  SPC.   Notwithstanding   the  foregoing,   Allegro  makes  no
representation or warranty with respect to any information supplied by SPC which
is contained in any of the foregoing documents.
 
     3.20 Board Approval.  The Board of Directors of Allegro has, as of the date
of this  Agreement,  determined  (i) that the  Merger is fair to and in the best
interests  of  Allegro  and its  stockholders,  and (ii) to  recommend  that the
stockholders of Allegro approve this Agreement.
 
     3.21 Minute  Books.  The minute books of Allegro made  available to counsel
for SPC are the only minute books of Allegro and contain a  reasonably  accurate
summary,  in all material respects,  of all meetings of directors (or committees
thereof)  and  stockholders  or  actions by  written  consent  since the time of
incorporation of Allegro.
 
                                   ARTICLE IV
 
                       CONDUCT PRIOR TO THE EFFECTIVE TIME
 
     4.1 Conduct of Business.  During the period from the date of this Agreement
and continuing  until the earlier of the termination of this Agreement  pursuant
to its terms or the Effective  Time, SPC (which for the purposes of this Article
4 shall  include SPC and each of its  subsidiaries)  and Allegro  (which for the
purposes of this Article 4 shall include  Allegro and each of its  subsidiaries)
agree,  except  (i) in the  case  of SPC as  provided  in  Article  4 of the SPC
Schedules  and in the case of Allegro as  provided  in Article 4 of the  Allegro
Schedules, or (ii) to the extent that the other party shall otherwise consent in
writing,  to  carry on its  business  diligently  and in  accordance  with  good
commercial  practice  and to carry on its  business  in the usual,  regular  and
ordinary course,  in substantially the same manner as heretofore  conducted,  to
pay its debts and taxes when due subject to good faith  disputes over such debts
or taxes,  to pay or perform other  material  obligations  when due, and use its
commercially  reasonable  efforts consistent with past practices and policies to
preserve intact its present business  organization,  keep available the services
of its present  officers  and  employees  and preserve  its  relationships  with
customers, suppliers, distributors,  licensors, licensees, and others with which
it has  business  dealings.  In  furtherance  of the  foregoing  and  subject to
applicable  law, SPC and Allegro  agree to confer,  as promptly as  practicable,
prior to taking any material actions or making any material management decisions
with respect to the conduct of business. In addition,  except in the case of SPC
as  provided  in  Article 4 of the SPC  Schedules  and in the case of Allegro as
provided  in  Article 4 of the  Allegro  Schedules,  without  the prior  written
consent of the other, not to be unreasonably  withheld,  neither SPC nor Allegro
shall do any of the  following,  and neither SPC nor  Allegro  shall  permit its
subsidiaries to do any of the following:
 
          (a) Waive any stock repurchase rights, accelerate, amend or change the
     period of exercisability of options or restricted stock, or reprice options
     granted under any employee, consultant or director stock plans or authorize
     cash payments in exchange for any options granted under any of such plans;
 

<PAGE>

          (b) Enter into any material partnership arrangements, joint
     development agreements or strategic alliances;
 
          (c) Grant any severance or termination pay to any officer or employee
     except payments in amounts consistent with policies and past practices or
     pursuant to written agreements outstanding, or policies existing, on the
     date hereof and as previously disclosed in writing to the other, or adopt
     any new severance plan;
 
          (d) Transfer or license to any person or entity or otherwise extend,
     amend or modify in any material respect any rights to the SPC IP Rights or
     the Allegro IP Rights, as the case may be, or enter into grants to future
     patent rights, other than in the ordinary course of business;
 
          (e) Declare or pay any dividends on or make any other distributions
     (whether in cash, stock or property) in respect of any capital stock or
     split, combine or reclassify any capital stock or issue or authorize the
     issuance of any other securities in respect of, in lieu of or in
     substitution for any capital stock;
 
          (f) Repurchase or otherwise acquire, directly or indirectly, any
     shares of capital stock except pursuant to rights of repurchase of any such
     shares under any employee, consultant or director stock plan;
 
          (g) Issue, deliver, sell, authorize or propose the issuance, delivery
     or sale of, any shares of capital stock or any securities convertible into
     shares of capital stock, or subscriptions, rights, warrants or options to
     acquire and shares of capital stock or any securities convertible into
     shares of capital stock, or enter into other agreements or commitments of
     any character obligating it to issue any such shares or convertible
     securities, other than (i) the issuance of shares of SPC Capital Stock or
     Allegro Common Stock, as the case may be, pursuant to the exercise of stock
     options therefor outstanding as of the date of this Agreement, (ii) options
     to purchase shares of SPC Capital Stock or Allegro Common Stock, as the
     case may be, to be granted at fair market value in the ordinary course of
     business, consistent with past practice and in accordance with existing
     stock option plans, (iii) shares of SPC Capital Stock or Allegro Common
     Stock, as the case may be, issuable upon the exercise of the options
     referred to in clause (ii), (iv) shares of SPC Capital Stock issuable to
     participants the SPC Employee Stock Purchase Plan consistent with the terms
     thereof, and (v) shares of Allegro Common Stock pursuant to the terms
     hereof;
 
          (h) Cause, permit or propose any amendments to any charter document or
     Bylaw (or similar governing instruments of any subsidiaries), except to
     increase the size of the Board of Directors of Allegro to eleven directors;
 
          (i) Acquire or agree to acquire by merging or consolidating with, or
     by purchasing any equity interest in or a material portion of the assets
     of, or by any other manner, any business or any corporation, partnership
     interest, association or other business organization or division thereof,
     or otherwise acquire or agree to acquire any assets which are material,
     individually or in the aggregate, to the business of SPC or Allegro, as the
     case may be, or enter into any joint ventures, strategic partnerships or
     alliances, other than in the ordinary course of business consistent with
     past practice;
 
          (j) Sell, lease, license, encumber or otherwise dispose of any
     properties or assets which are material, individually or in the aggregate,
     to the business of SPC or Allegro, as the case may be, except in the
     ordinary course of business consistent with past practice;
 
          (k) Incur any indebtedness for borrowed money (other than ordinary
     course trade payables or pursuant to existing credit facilities in the
     ordinary course of business) or guarantee any such indebtedness or issue or
     sell any debt securities or warrants or rights to acquire debt securities
     of SPC or Allegro, as the case may be, or guarantee any debt securities of
     others;
 
          (l) Adopt or amend any employee benefit or stock purchase or option
     plan, or enter into any employment contract, pay any special bonus or
     special remuneration to any director or employee, or increase the salaries
     or wage rates of its officers or employees other than in the ordinary
     course of business, consistent with past practice;
<PAGE>
 
          (m) Pay, discharge or satisfy any claim, liability or obligation
     (absolute, accrued, asserted or unasserted, contingent or otherwise), other
     than the payment, discharge or satisfaction in the ordinary course of
     business;
 
          (n) Make any grant of exclusive rights to any third party;
 
          (o) Make any expenditure equal to or exceeding $15,000; or
 
          (p) Agree in writing or otherwise to take any of the actions described
     in Article 4 (a) through (o) above.
 
                                    ARTICLE V
 
                              ADDITIONAL AGREEMENTS
 
     5.1 Proxy  Statement/Prospectus;  Registration Statement; Other Filings. As
promptly as practicable  after the execution of this Agreement,  SPC and Allegro
will prepare and file with the SEC the Proxy  Statement and Allegro will prepare
and file with the SEC the  Registration  Statement in which the Proxy  Statement
will be included as a  prospectus.  Each of SPC and Allegro  will respond to any
comments  of the  SEC,  will  use its  best  efforts  to have  the  Registration
Statement declared effective under the Securities Act as promptly as practicable
after  such  filing  and will  cause  the  Proxy  Statement  to be mailed to its
stockholders at the earliest  practicable time. As promptly as practicable after
the date of this  Agreement,  SPC and  Allegro  will  prepare and file any other
filings  required  under  the  Exchange  Act,  the  Securities  Act or any other
Federal, foreign or state securities or Blue Sky laws relating to the Merger and
the  transactions  contemplated  by this Agreement (the "Other  Filings").  Each
party will notify the other party promptly upon the receipt of any comments from
the SEC or its  staff  and of any  request  by the SEC or its staff or any other
government   officials  for  amendments  or  supplements  to  the   Registration
Statement, the Proxy Statement or any Other Filing or for additional information
and will supply the other party with copies of all  correspondence  between such
party or any of its representatives,  on the one hand, and the SEC, or its staff
or any other  government  officials,  on the other  hand,  with  respect  to the
Registration Statement, the Proxy Statement, the Merger or any Other Filing. The
Proxy Statement, the Registration Statement and the Other Filings will comply in
all material respects with all applicable  requirements of law and the rules and
regulations promulgated thereunder.  Whenever any event occurs which is required
to be set  forth in an  amendment  or  supplement  to the Proxy  Statement,  the
Registration  Statement or any Other Filing, SPC or Allegro, as the case may be,
will promptly  inform the other party of such occurrence and cooperate in filing
with the SEC or its staff or any other government  officials,  and/or mailing to
stockholders  of SPC and  Allegro,  such  amendment  or  supplement.  The  Proxy
Statement will also include the recommendations of (i) the Board of Directors of
SPC in favor of approval of this  Agreement  (except to the extent  permitted by
Section 5.4) and (ii) the Board of Directors of Allegro in favor of the approval
of this  Agreement  (except that the Board of Directors of Allegro may withdraw,
modify or refrain from making such  recommendations to the extent that the Board
determines, in good faith, after discussion with outside legal counsel, that the
Board's fiduciary duties under applicable law require it to do so).
 
     5.2 Meetings of Stockholders. Promptly after the date hereof, SPC will take
all action  necessary in  accordance  with Delaware Law and its  Certificate  of
Incorporation and Bylaws to convene the SPC Stockholders'  Meeting to be held as
promptly as  practicable,  and in any event within 45 days after the declaration
of effectiveness of the Registration  Statement,  for the purpose of voting upon
this  Agreement.  SPC  will  consult  with  Allegro  and  use  its  commercially
reasonable efforts to hold the SPC Stockholders'  Meeting on the same day as the
Allegro Stockholders' Meeting. Promptly after the date hereof, Allegro will take
all action necessary in accordance with the Delaware General Corporation Law and
its Certificate of Incorporation and Bylaws to convene the Allegro Stockholders'
Meeting to be held as promptly as  practicable,  and in any event within 45 days
after the declaration of effectiveness of the  Registration  Statement,  for the
purpose of voting upon this  Agreement.  Allegro  will consult with SPC and will
use its  commercially  reasonable  efforts  to hold  the  Allegro  Stockholders'
Meeting on the same day as the SPC Stockholders'  Meeting.  Allegro and SPC will
each use its  commercially  reasonable  efforts to solicit from its stockholders
proxies  in favor of the  approval  of this  Agreement  and will  take all other
action  necessary or advisable to secure the vote or consent of their respective
stockholders  required by the Delaware  General  Corporation  Law to obtain such
approval (except to the extent permitted by Section 5.4).

<PAGE>
 
     5.3 Access to Information; Confidentiality.
 
     (a) Each party will afford the other party and its accountants, counsel and
other  representatives  reasonable  access during normal  business  hours to the
properties,  books,  records and  personnel of the other party during the period
prior to the Effective Time to obtain all  information  concerning the business,
including  the status of product  development  efforts,  properties,  results of
operations  and  personnel  of such  party,  as the other  party may  reasonably
request.  No information or knowledge obtained in any investigation  pursuant to
this  Section  5.3 will  affect or be deemed to  modify  any  representation  or
warranty contained herein or the conditions to the obligations of the parties to
consummate the Merger.
 
     (b) The parties acknowledge that Allegro and SPC have previously executed a
Confidentiality    Agreement   (the    "Confidentiality    Agreement"),    which
Confidentiality  Agreement  will continue in full force and effect in accordance
with its  terms,  except  as is  necessary  to  comply  with  the  terms of this
Agreement.
 
     5.4 No Solicitation by SPC.
 
     (a) From and after the date of this  Agreement  until  the  earlier  of the
Effective Time or termination of this Agreement  pursuant to its terms,  SPC and
its  subsidiaries  will  not,  and will  instruct  their  respective  directors,
officers, employees, representatives,  investment bankers, agents and affiliates
not to, directly or indirectly,  (i) solicit or knowingly  encourage  submission
of, any  proposals or offers by any person,  entity or group (other than Allegro
and its  affiliates,  agents and  representatives),  or (ii)  participate in any
discussions  or  negotiations  with,  or  disclose  any  non-public  information
concerning  SPC or any of its  subsidiaries  to,  or  afford  any  access to the
properties,  books or records of SPC or any of its subsidiaries to, or otherwise
assist or  facilitate,  or enter into any agreement or  understanding  with, any
person,  entity or group  (other  than  Allegro and its  affiliates,  agents and
representatives),  in connection with any  Acquisition  Proposal with respect to
SPC. For the purposes of this Agreement,  an "Acquisition Proposal" with respect
to  an  entity  means  any  proposal  or  offer  relating  to  (i)  any  merger,
consolidation,  sale of substantial assets or similar transactions involving the
entity  or any  subsidiaries  of the  entity  (other  than  sales of  assets  or
inventory  in the ordinary  course of business or  permitted  under the terms of
this  Agreement),  (ii) sale of 5% or more of the outstanding  shares of capital
stock of the entity (including without limitation by way of a tender offer or an
exchange offer),  (iii) the acquisition by any person of beneficial ownership or
a right to acquire beneficial  ownership of, or the formation of any "group" (as
defined under  Section  13(d) of the Exchange Act and the rules and  regulations
thereunder)  which  beneficially  owns,  or has the right to acquire  beneficial
ownership of, 5% or more of the then outstanding  shares of capital stock of the
entity  (except  for  acquisitions  for  passive  investment  purposes  only  in
circumstances  where the person or group  qualifies for and files a Schedule 13G
with respect thereto);  or (iv) any public  announcement of a proposal,  plan or
intention to do any of the  foregoing  or any  agreement to engage in any of the
foregoing.   SPC  will  immediately  cease  any  and  all  existing  activities,
discussions or negotiations with any parties  conducted  heretofore with respect
to any of the foregoing.  SPC will (i) notify Allegro as promptly as practicable
if any inquiry or proposal is made or any  information or access is requested in
writing in  connection  with an  Acquisition  Proposal or potential  Acquisition
Proposal and (ii) as promptly as practicable  notify Allegro of the  significant
terms and conditions of any such Acquisition Proposal.  In addition,  subject to
the  other  provisions  of this  Section  5.4,  from and  after the date of this
Agreement  until the  earlier  of the  Effective  Time and  termination  of this
Agreement  pursuant to its terms,  SPC and its  subsidiaries  will not, and will
instruct  their  respective  directors,  officers,  employees,  representatives,
investment bankers,  agents and affiliates not to, directly or indirectly,  make
or authorize any public statement,  recommendation or solicitation in support of
any  Acquisition  Proposal  made by any  person,  entity  or group  (other  than
Allegro);  provided,  however, that nothing herein shall prohibit SPC's Board of
Directors  from taking and  disclosing  to SPC's  stockholders  a position  with
respect to a tender offer  pursuant to Rules 14d-9 and 14e-2  promulgated  under
the Exchange Act.
 
     (b)  Notwithstanding  the  provisions of paragraph (a) above,  prior to the
approval of this Agreement by the  stockholders of SPC at the SPC  Stockholders'
Meeting,  SPC may, to the extent the Board of  Directors of SPC  determines,  in
good faith,  after  consultation  with outside legal  counsel,  that the Board's

<PAGE>

fiduciary  duties  under  applicable  law  require it to do so,  participate  in
discussions or negotiations  with, and, subject to the requirements of paragraph
(c),  below,  furnish  information  to any  person,  entity or group  after such
person,  entity or group has delivered to SPC in writing,  an  unsolicited  bona
fide Acquisition  Proposal which the Board of Directors of SPC in its good faith
reasonable  judgment   determines,   after  consultation  with  its  independent
financial  advisors,  would  result  in a  transaction  more  favorable  to  the
stockholders of SPC from a financial point of view than the Merger and for which
financing, to the extent required, is then committed or which, in the good faith
reasonable  judgment of the Board of  Directors of SPC (based upon the advice of
independent financial advisors), is reasonably capable of being financed by such
person,  entity or group and which is likely to be consummated (an "SPC Superior
Proposal"). In addition,  notwithstanding the provisions of paragraph (a) above,
in  connection  with a possible  Acquisition  Proposal,  SPC may refer any third
party to this  Section  5.4 or make a copy of this  Section 5.4  available  to a
third  party.  In the event  SPC  receives  an SPC  Superior  Proposal,  nothing
contained in this  Agreement  (but subject to the terms hereof) will prevent the
Board  of  Directors  of SPC  from  approving  such  SPC  Superior  Proposal  or
recommending  such SPC  Superior  Proposal to SPC's  stockholders,  if the Board
determines that such action is required by its fiduciary duties under applicable
law; in such case, the Board of Directors of SPC may withdraw, modify or refrain
from  making its  recommendation  concerning  the  approval  of this  Agreement;
provided,  however,  that SPC shall not accept or recommend to its stockholders,
or enter into any agreement concerning, an SPC Superior Proposal for a period of
not less than 48 hours after  Allegro's  receipt of a copy of such SPC  Superior
Proposal (or a description of the significant terms and conditions  thereof,  if
not in writing).
 
     (c) Notwithstanding anything to the contrary in paragraph (a), SPC will not
provide any  non-public  information  to a third party unless:  (x) SPC provides
such non-public  information  pursuant to a  nondisclosure  agreement with terms
regarding the protection of confidential  information at least as restrictive as
such terms in the Confidentiality Agreement; and (y) such non-public information
is the same information previously delivered to Allegro.
 
     5.5 Public Disclosure.  Allegro and SPC will consult with each other before
issuing any press release or otherwise  making any public statement with respect
to the Merger, this Agreement or an Alternative  Proposal and will not issue any
such press release or make any such public statement prior to such consultation,
except  as may be  required  by law or any  listing  agreement  with a  national
securities exchange or Nasdaq.
 
     5.6 Legal Requirements.  Each of Allegro,  Merger Sub and SPC will take all
reasonable  actions  necessary or desirable  to comply  promptly  with all legal
requirements  which may be imposed on them with respect to the  consummation  of
the  transactions  contemplated  by this  Agreement  (including  furnishing  all
information  required  in  connection  with  approvals  of or  filings  with any
Governmental  Entity,  and prompt resolution of any litigation  prompted hereby)
and will promptly  cooperate  with and furnish  information  to any party hereto
necessary in connection with any such  requirements  imposed upon any of them or
their  respective  subsidiaries  in  connection  with  the  consummation  of the
transactions  contemplated by this Agreement.  Allegro will use its commercially
reasonable  efforts to take such steps as may be  necessary  to comply  with the
securities  and blue sky laws of all  jurisdictions  which are applicable to the
issuance of Allegro Common Stock pursuant hereto.  SPC will use its commercially
reasonable  efforts to assist  Allegro as may be  necessary  to comply  with the
securities  and blue sky  laws of all  jurisdictions  which  are  applicable  in
connection with the issuance of Allegro Common Stock pursuant hereto.
 
     5.7 Third Party Consents. As soon as practicable following the date hereof,
Allegro and SPC will each use its commercially  reasonable efforts to obtain all
material  consents,  waivers and approvals under any of its or its subsidiaries'
agreements,  contracts, licenses or leases required to be obtained in connection
with the consummation of the transactions contemplated hereby.
 
     5.8 FIRPTA. At or prior to the Closing, SPC, if requested by Allegro, shall
deliver  to the IRS a notice  that  the SPC  Capital  Stock is not a "U.S.  Real
Property  Interest"  as  defined  and in  accordance  with the  requirements  of
Treasury Regulation Section 1.897-2(h)(2).
 
     5.9  Notification  of  Certain  Matters.  Allegro  and Merger Sub will give
prompt  notice  to SPC,  and SPC will give  prompt  notice  to  Allegro,  of the
occurrence,  or failure to occur, of any event,  which  occurrence or failure to


<PAGE>

occur would be  reasonably  likely to cause (a) any  representation  or warranty
contained in this  Agreement to be untrue or inaccurate in any material  respect
at any time from the date of this  Agreement to the  Effective  Time, or (b) any
material failure of Allegro and Merger Sub or SPC, as the case may be, or of any
officer,  director,  employee  or agent  thereof,  to comply with or satisfy any
covenant,  condition or  agreement to be complied  with or satisfied by it under
this Agreement.  Notwithstanding  the above, the delivery of any notice pursuant
to this  section  will not limit or  otherwise  affect  the  remedies  available
hereunder to the party receiving such notice.
 
     5.10 Best Efforts and Further Assurances.  Subject to the respective rights
and obligations of Allegro and SPC under this Agreement,  each of the parties to
this  Agreement will use its best efforts to effectuate the Merger and the other
transactions  contemplated  hereby and to fulfill and cause to be fulfilled  the
conditions to closing under this Agreement. Each party hereto, at the reasonable
request of another party hereto, will execute and deliver such other instruments
and do and perform  such other acts and things as may be  necessary or desirable
for effecting  completely  the  consummation  of the  transactions  contemplated
hereby.
 
     5.11 Stock Options; Employee Stock Purchase Plan.
 
     (a) At the Effective  Time, each  outstanding  option to purchase shares of
SPC Capital Stock (each an "SPC Stock Option") under the SPC Stock Option Plans,
whether or not exercisable, will be assumed by Allegro. Each SPC Stock Option so
assumed by Allegro under this  Agreement  will continue to have,  and be subject
to, the same terms and  conditions  set forth in the applicable SPC Stock Option
Plan immediately prior to the Effective Time (including, without limitation, any
repurchase  rights),  except that (i) each SPC Stock Option will be  exercisable
(or will become  exercisable  in  accordance  with its terms) for that number of
whole  shares of  Allegro  Common  Stock  equal to the  product of the number of
shares of SPC Capital  Stock that were  issuable upon exercise of such SPC Stock
Option immediately prior to the Effective Time multiplied by the Exchange Ratio,
rounded down to the nearest whole number of shares of Allegro Common Stock,  and
(ii) the per  share  exercise  price  for the  shares of  Allegro  Common  Stock
issuable  upon  exercise of such  assumed SPC Stock  Option will be equal to the
quotient  determined  by dividing  the  exercise  price per share of SPC Capital
Stock at which such SPC Stock Option was  exercisable  immediately  prior to the
Effective  Time by the  Exchange  Ratio,  rounded up to the nearest  whole cent.
After the Effective  Time,  Allegro will issue to each holder of an  outstanding
SPC Stock Option a notice describing the foregoing  assumption of such SPC Stock
Option by Allegro.
 
     (b) It is the  intention of the parties that SPC Stock  Options  assumed by
Allegro  qualify  following  the  Effective  Time as incentive  stock options as
defined in Section 422 of the Code to the extent SPC Stock Options  qualified as
incentive stock options immediately prior to the Effective Time.
 
     (c) Allegro  will  reserve  sufficient  shares of Allegro  Common Stock for
issuance under Section 5.11(a) and under Section 1.6(c) hereof.
 
     5.12 Form S-8. Allegro agrees to file a registration  statement on Form S-8
for the shares of Allegro  Common  Stock  issuable  with  respect to assumed SPC
Stock Options no later than ten (10) business days after the Closing Date.
 
     5.13 Indemnification and Insurance.
 
     (a) From and after the  Effective  Time,  the  Surviving  Corporation  will
fulfill  and  honor in all  respects  the  obligations  of SPC  pursuant  to any
indemnification  agreements  between SPC and its directors and officers existing
prior to the date hereof.  The  Certificate of  Incorporation  and Bylaws of the
Surviving  Corporation will contain  provisions with respect to  indemnification
and elimination of liability for monetary damages not less favorable to officers
and directors to those set forth in the Certificate of Incorporation  and Bylaws
of SPC, which provisions will not be amended,  repealed or otherwise modified in
a manner  adverse to officers and  directors  for a period of six years from the
Effective Time in any manner that would adversely  affect the rights  thereunder
of individuals who, at the Effective Time, were directors,  officers,  employees
or agents of SPC, unless such modification is required by law.
 

<PAGE>

     (b) After the Effective Time the Surviving Corporation will, to the fullest
extent  permitted  under  applicable  law or under the  Surviving  Corporation's
Certificate  of  Incorporation  or Bylaws,  indemnify  and hold  harmless,  each
present  and  former  director  or  officer  of SPC  or any of its  subsidiaries
(collectively,   the  "Indemnified  Parties")  against  any  costs  or  expenses
(including  attorneys'  fees),   judgments,   fines,  losses,  claims,  damages,
liabilities and amounts paid in settlement in connection with any claim, action,
suit, proceeding or investigation,  whether civil,  criminal,  administrative or
investigative,  to the  extent  arising  out of or  pertaining  to any action or
omission  in his or her  capacity as a director or officer of SPC arising out of
or pertaining to the transactions contemplated by this Agreement for a period of
six years after the date hereof. In the event of any such claim,  action,  suit,
proceeding  or  investigation  (whether  arising  before or after the  Effective
Time), (i) any counsel retained by the Indemnified  Parties for any period after
the Effective Time will be reasonably  satisfactory to the Surviving Corporation
and Allegro,  (ii) after the Effective Time, the Surviving  Corporation will pay
the  reasonable  fees and expenses of such counsel,  promptly  after  statements
therefor are received and (iii) the Surviving  Corporation will cooperate in the
defense of any such matter;  provided,  however,  that the Surviving Corporation
will not be liable for any  settlement  effected  without  its  written  consent
(which consent will not be unreasonably withheld); and provided,  further, that,
in the event that any claim or claims for  indemnification  are asserted or made
within such six-year  period,  all rights to  indemnification  in respect of any
such claim or claims will  continue  until the  disposition  of any and all such
claims.  The  Indemnified  Parties as a group may  retain  only one law firm (in
addition to local  counsel) to represent  them with respect to any single action
unless there is, under applicable standards of professional  conduct, a conflict
on any  significant  issue between the positions of any two or more  Indemnified
Parties.
 
     (c) Allegro shall maintain  through  September 3, 1997 the current policies
of directors' and officers' liability insurance maintained by SPC. The Surviving
Corporation shall pay all retentions and deductibles  payable by any Indemnified
Party with  respect to such  policies;  provided,  that if and to the extent the
Surviving   Corporation  has  insufficient  cash  to  pay  such  retentions  and
deductibles in full, the remaining amounts payable shall be paid by Allegro.
 
     (d)  Promptly   after  the  Effective   Time,   Allegro  shall  enter  into
indemnification  agreements  with  directors  and  officers  of SPC  who  become
directors  or  officers  of  Allegro  or of  the  Surviving  Corporation,  which
agreements shall be  substantially  identical to those which Allegro has entered
with its current officers and directors.
 
     (e) This Section 5.13 will survive any  termination  of this  Agreement and
the  consummation  of the Merger at the  Effective  Time, is intended to benefit
SPC, the Surviving  Corporation and the Indemnified Parties, and will be binding
on all  successors and assigns of the Surviving  Corporation.  If Allegro or the
Surviving  Corporation  or any of their  respective  successors  or assigns  (i)
consolidates with or merges into any other person or entity and shall not be the
continuing or surviving person of such consolidation or merger or (ii) transfers
all or  substantially  all of its properties and assets to any person or entity,
then  and in each  such  case,  proper  provision  shall  be  made so that  such
successors or assigns of Allegro or the Surviving  Corporation,  as the case may
be, shall assume the obligations set forth in this Section 5.13.
 
     5.14   Tax-Free   Reorganization.   Allegro  and  SPC  will  each  use  its
commercially  reasonable  efforts  to  cause  the  Merger  to  be  treated  as a
reorganization  within the meaning of Section  368 of the Code.  Allegro and SPC
will each make available to the other party and their  respective  legal counsel
copies of all returns requested by the other party.
 
     5.15 NASDAQ Listing.  Allegro agrees to apply for authorization for listing
on the Nasdaq SmallCap  Market the shares of Allegro Common Stock issuable,  and
those required to be reserved for issuance,  in connection with the Merger, upon
official notice of issuance, and will use its commercially reasonable efforts to
have its Common  Stock  authorized  for  listing on the Nasdaq  National  Market
System as soon as reasonably practicable.
 

<PAGE>

     5.16 SPC Affiliate  Agreement.  Set forth on the SPC Schedules is a list of
those persons who may be deemed to be, in SPC's reasonable judgment,  affiliates
of SPC within the meaning of Rule 145  promulgated  under the Securities Act (an
"SPC  Affiliate").  SPC will provide Allegro with such information and documents
as Allegro reasonably requests for purposes of reviewing such list. SPC will use
its best  efforts to deliver or cause to be  delivered  to Allegro  prior to the
Closing  Date  from  each SPC  Affiliate  an  executed  affiliate  agreement  in
substantially  the  form  attached  hereto  as  Exhibit  A (the  "SPC  Affiliate
Agreement"),  each of which will be in full force and effect as of the Effective
Time. Allegro will be entitled to place appropriate  legends on the certificates
evidencing any Allegro Common Stock to be received by an SPC Affiliate  pursuant
to  the  terms  of  this  Agreement,  and to  issue  appropriate  stop  transfer
instructions to the transfer agent for the Allegro Common Stock, consistent with
the terms of the SPC Affiliate Agreement.
 
     5.17 Board of Directors of Allegro.  The Board of Directors of Allegro will
take  all  actions  necessary  to  cause  the  Board of  Directors  of  Allegro,
immediately after the Effective Time, to consist of eleven persons, nine of whom
shall have served on the Board of Directors of Allegro  immediately prior to the
Effective  Time and two of whom shall have served on the Board of  Directors  of
SPC immediately  prior to the Effective Time (one of whom shall be Fred Gibbons,
in Class III, and one of whom shall be designated by the SPC Board of Directors,
and is currently  expected to be Miriam  Frazer,  in Class II). If, prior to the
Effective  Time, any of the SPC or Allegro  designees shall decline or be unable
to serve as an SPC or Allegro  director,  SPC (if such person was  designated by
SPC) or Allegro  (if such person was  designated  by  Allegro)  shall  designate
another person to serve in such person's stead, which person shall be reasonably
acceptable to the other party.
 
     5.18 Loan  Facility.  From the date hereof  through the  Effective  Date or
earlier termination of the Agreement,  SPC shall, upon request by Allegro,  loan
up to  $1,000,000  to  Allegro.  SPC  shall  not be  required  to loan more than
one-third of the maximum loan amount in any 30-day  period,  and the proceeds of
all loans shall be used only for working capital  purposes;  provided,  however,
that no such loan shall be  required  to be made  unless and until the  fairness
opinions  referred  to in Sections  6.2(e) and 6.3(f) have been  received or the
condition  relating  thereto  waived.  Any such  loan  shall be  evidenced  by a
promissory note with the following terms:
 
          (a) maturity on the tenth anniversary of the date of any loan;
 
          (b) in the event that this Agreement is terminated by Allegro, the
     note shall be converted into shares of Common Stock of Allegro at the Loan
     Conversion Price (as defined below);
 
          (c) in the event this Agreement is terminated by SPC, the note (less
     any amount payable by SPC to Allegro pursuant to Section 7.3(b) of this
     Agreement) shall be converted into shares of Common Stock of Allegro at the
     Loan Conversion Price; provided, however, that in the event that such
     termination shall result in a fee payable by Allegro to SPC pursuant to
     Section 7.3(c) of this Agreement, only one-half of the note shall be so
     converted and the remaining one-half shall be repayable at the same time
     and in the same manner as the fee payable pursuant to Section 7;
 
          (d) the note shall bear interest at a rate per annum equal to the
     prime rate plus 2%.
 
     As used  herein,  the term "Loan  Conversion  Price"  shall mean 90% of the
average of the last reported sale prices of the Allegro Common Stock for the ten
trading  days  ending on the day  immediately  prior to the date of  termination
leading to conversion of the loan(s).
 
     5.19  Fairness  Opinions.  Each of SPC and  Allegro  shall use  their  best
efforts to obtain the  fairness  opinions  referred  to in  Sections  6.2(e) and
6.3(e), respectively.
 
     5.20 SPC  Employee  Benefits.  Subject to being able to do so  consistently
with  applicable  laws,   after  the  Effective  Date,   Allegro  will  use  its
commercially reasonable efforts to cause the Surviving Corporation to provide to
the  employees of SPC employee  benefits  comparable to those under the existing
SPC plans generally available to SPC employees.
 

<PAGE>

                                   ARTICLE VI
 
                            CONDITIONS TO THE MERGER
 
     6.1  Conditions  to  Obligations  of Each Party to Effect the  Merger.  The
respective  obligations  of each  party to this  Agreement  to effect the Merger
shall be subject to the  satisfaction  at or prior to the Effective  Time of the
following conditions:
 
          (a) Stockholder Approval.  This Agreement shall have been approved
     and adopted, and the Merger shall have been duly approved, by the 
     requisite vote under applicable law by the stockholders of SPC and by the
     stockholders of Allegro.

          (b) Registration Statement Effective.  The SEC shall have declared the
     Registration Statement effective. No stop order suspending the
     effectiveness of the Registration Statement or any part thereof shall have
     been issued and no proceeding for that purpose, and no similar proceeding
     in respect of the Proxy Statement, shall have been initiated or threatened
     in writing by the SEC.
 
          (c) No Order.  No Governmental Entity shall have enacted, issued,
     promulgated, enforced or entered any statute, rule, regulation, executive
     order, decree, injunction or other order (whether temporary, preliminary or
     permanent) which is in effect and which has the effect of making the Merger
     illegal or otherwise prohibiting consummation of the Merger.
 
          (d) Nasdaq Listing.  The shares of Allegro Common Stock issuable to
     stockholders of SPC pursuant to this Agreement and such other shares
     required to be reserved for issuance in connection with the Merger shall
     have been authorized for listing on the Nasdaq SmallCap upon official
     notice of issuance.
 
     6.2 Additional  Conditions to Obligations of SPC. The obligations of SPC to
consummate  and  effect the Merger  shall be subject to the  satisfaction  at or
prior to the Effective  Time of each of the following  conditions,  any of which
may be waived, in writing, exclusively by SPC:
 
          (a) Representations and Warranties.  The representations and
     warranties of Allegro and Merger Sub contained in this Agreement shall be
     true and correct on and as of the Effective Time, except for changes
     contemplated by this Agreement and except for those representations and
     warranties which address matters only as of a particular date (which shall
     remain true and correct as of such particular date), with the same force
     and effect as if made on and as of the Effective time, except, in all
     such cases where the failure to be so true and correct, would not have a
     Material Adverse Effect on Allegro; and SPC shall have received a 
     certificate to such effect signed on behalf of Allegro by the Chief
     Financial Officer of Allegro;
 
          (b) Agreements and Covenants.  Allegro and Merger Sub shall have
     performed or complied in all material respects with all agreements and
     covenants required by this Agreement to be performed or complied with by
     them on or prior to the Effective Time, and SPC shall have received a
     certificate to such effect signed on behalf of Allegro by the Chief
     Financial Officer of Allegro;
 
          (c) Material Adverse Effect.  No Material Adverse Effect with respect
     to Allegro shall have occurred since the date of this Agreement; and
 
          (d) Legal Opinion.  SPC shall have received a legal opinion from Blau,
     Kramer, Wactlar & Lieberman, P.C., counsel to Allegro, in a form reasonably
     acceptable to SPC.
 
          (e) Fairness Opinion.  SPC shall have received a written opinion from
     Unterberg Harris or another investment banking firm by not later than
     October 11, 1996, to the effect that as of the date hereof, the Exchange
     Ratio is fair to SPC's stockholders from a financial point of view, and
     shall have delivered to Allegro by not later than such date a copy of such
     opinion.
 

<PAGE>

     6.3 Additional Conditions to the Obligations of Allegro and Merger Sub. The
obligations  of Allegro and Merger Sub to consummate and effect the Merger shall
be subject to the  satisfaction at or prior to the Effective Time of each of the
following  conditions,  any of which may be waived,  in writing,  exclusively by
Allegro:
 
          (a) Representations and Warranties.  The representations and
     warranties of SPC contained in this Agreement shall be true and correct on
     and as of the Effective Time, except for changes contemplated by this
     Agreement and except for those representations and warranties which address
     matters only as of a particular date (which shall remain true and correct
     as of such particular date), with the same force and effect as if made on
     and as of the Effective Time, except, in all such cases where the failure
     to be so true and correct, would not have a Material Adverse Effect on SPC;
     and Allegro and Merger Sub shall have received a certificate to such effect
     signed on behalf of SPC by the Chief Financial Officer of SPC;
 
          (b) Agreements and Covenants.  SPC shall have performed or complied in
     all material respects with all agreements and covenants required by this
     Agreement to be performed or complied with by it on or prior to the
     Effective Time, and the Allegro shall have received a certificate to such
     effect signed on behalf of SPC by the Chief Financial Officer of SPC;
 
          (c) Material Adverse Effect.  No Material Adverse Effect with respect
     to SPC shall have occurred since the date of this Agreement;
 
          (d) Legal Opinion.  Allegro shall have received a legal opinion from
     Wilson Sonsini Goodrich & Rosati, counsel to SPC, in a form reasonably
     acceptable to Allegro.
 
          (e) Fairness Opinion.  Allegro has received a written opinion from
     Frost Capital Partners, Inc. or another investment banking firm by not
     later than October 11, 1996 to the effect that as of the date hereof, the
     Merger is fair to Allegro's stockholders from a financial point of view,
     and shall have delivered to SPC a copy of such opinion by not later than
     such date.
 
          (f) Termination of SPC Shareholder Rights Plan.  SPC's Shareholder
     Rights Plan shall either have been terminated or its operation waived with
     regard to the transaction contemplated hereby.
 
                                   ARTICLE VII
 
                        TERMINATION, AMENDMENT AND WAIVER
 
     7.1 Termination.  This Agreement may be terminated at any time prior to the
Effective Time of the Merger,  whether before or after approval of the Merger by
the stockholders of Allegro and SPC:
 
          (a) by mutual written consent duly authorized by the Boards of
     Directors of Allegro and SPC;
 
          (b) by either SPC or Allegro if the Merger shall not have been
     consummated by February 15, 1997; provided, however, that the right to
     terminate this Agreement under this Section 7.1(b) shall not be available
     to any party whose action or failure to act has been a principal cause of
     or resulted in the failure of the Merger to occur on or before such date
     and such action or failure to act constitutes a breach of this Agreement;
 
          (c) by either SPC or Allegro if a court of competent jurisdiction or
     governmental, regulatory or administrative agency or commission shall have
     issued an order, decree or ruling or taken any other action (an "Order"),
     in any case having the effect of permanently restraining, enjoining or
     otherwise prohibiting the Merger, which order, decree or ruling is final
     and nonappealable;
 
          (d) by either SPC or Allegro if the required approvals of the
     stockholders of SPC and Allegro contemplated by this Agreement shall not
     have been obtained by reason of the failure to obtain the required vote
     upon a vote taken at a meeting of stockholders duly convened therefor or 
     at any adjournment thereof (provided that the right to terminate this
     Agreement under this Section 7.1(d) shall not be available to any party
     where the failure to obtain stockholder approval of such party shall have
     been caused by the action or failure to act of such party in breach of this
     Agreement);
 
<PAGE>

          (e) by either SPC or Allegro, if SPC shall have accepted an SPC
     Superior Proposal or by Allegro if the SPC Board of Directors recommends
     an SPC Superior Proposal to the stockholders of SPC;
 
          (f) by Allegro, if the Board of Directors of SPC shall have withheld,
     withdrawn or modified in a manner adverse to Allegro its recommendation in
     favor of approving the issuance of the shares of Allegro Common Stock by
     virtue of the Merger;
 
          (g) by SPC, if the Board of Directors of Allegro shall have withheld,
     withdrawn or modified in a manner adverse to SPC its recommendation in
     favor of the Merger;
 
          (h) by SPC, upon a material breach of any representation, warranty,
     covenant or agreement on the part of Allegro set forth in this Agreement,
     or if any representation or warranty of Allegro shall have become untrue in
     any material respect, in either case such that the conditions set forth in
     Section 6.2(a) or Section 6.2(b) would not be satisfied as of the time of
     such breach or as of the time such representation or warranty shall have
     become untrue, provided that if such inaccuracy in Allegro's
     representations and warranties or breach by Allegro is curable by Allegro
     through the exercise of its commercially reasonable efforts within fifteen
     (15) days of the time such representation or warranty shall have become
     untrue or such breach, then SPC may not terminate this Agreement under this
     Section 7.1(h) during such fifteen-day period provided Allegro continues to
     exercise such commercially reasonable efforts;
 
          (i) by Allegro, upon a material breach of any representation,
     warranty, covenant or agreement on the part of SPC set forth in this
     Agreement, or if any representation or warranty of SPC shall have become
     untrue in any material respect, in either case such that the conditions set
     forth in Section 6.3(a) or Section 6.3(b) would not be satisfied as of the
     time of such breach or as of the time such representation or warranty shall
     have become untrue, provided, that if such inaccuracy in the Company's
     representations and warranties or breach by SPC is curable by SPC through
     the exercise of its commercially reasonable efforts within fifteen (15)
     days of the time such representation or warranty shall have become untrue
     or such breach, then Allegro may not terminate this Agreement under this
     Section 7.1(i) during such fifteen-day period provided SPC continues to
     exercise such commercially reasonable efforts;
 
          (j) by SPC, if there shall have occurred any Material Adverse Effect
     with respect to Allegro since the date of this Agreement;
 
          (k) by Allegro, if there shall have occurred any Material Adverse
     Effect with respect to SPC since the date of this Agreement;
 
          (l) by SPC, if the condition specified in Section 6.2(e) has not been
     satisfied by October 11, 1996; or
 
          (m) by Allegro, if the condition specified in Section 6.3(e) has not
     been satisfied by October 11, 1996.
 
     7.2 Notice of Termination; Effect of Termination.
 
     (a) Subject to Sections  7.2(b) and (c), any  termination of this Agreement
under  Section  7.1 above will be  effective  immediately  upon the  delivery of
written  notice of the  terminating  party to the other parties  hereto.  In the
event of the  termination  of this  Agreement as provided in Section  7.1,  this
Agreement  shall be of no further  force or  effect,  except (i) as set forth in
this Section 7.2, Section 7.3 and Article 8 (miscellaneous), each of which shall
survive the termination of this Agreement, and (ii) nothing herein shall relieve
any  party  from  liability  for  any  willful  breach  of  this  Agreement.  No
termination  of this  Agreement  shall  affect the  obligations  of the  parties
contained  in the  Confidentiality  Agreement,  all of which  obligations  shall
survive termination of this Agreement in accordance with their terms.
 
     (b) Any termination of this Agreement by SPC pursuant to Sections 7.1(d) or
7.1(e)  hereof shall be of no force or effect  unless prior to such  termination
SPC shall have paid to Allegro any amounts payable pursuant to Section 7.3(b).
 
<PAGE>

     (c) Any  termination  of this  Agreement  by Allegro  pursuant  to Sections
7.1(d) or 7.1(g)  hereof  shall be of no force or  effect  unless  prior to such
termination  Allegro  shall have paid to SPC any  amounts  payable  pursuant  to
Section 7.3(c).
 
     7.3 Fees and Expenses.
 
     (a) Except as set forth in this Section 7.3, all fees and expenses incurred
in connection with this Agreement and the transactions contemplated hereby shall
be paid by the party  incurring  such  expenses,  whether  or not the  Merger is
consummated;  provided,  however,  that Allegro and SPC shall share  equally all
fees and expenses,  other than reasonable  attorneys' and  accountants  fees and
expenses, incurred in relation to the printing and filing of the Proxy Statement
(including  any  preliminary  materials  related  thereto) and the  Registration
Statement  (including  financial  statements and exhibits) and any amendments or
supplements thereto.
 
     (b) SPC shall  immediately  make  payment to Allegro  (by wire  transfer or
certified or cashiers  check) of (x)  $1,000,000 (i) in the event SPC shall have
accepted an SPC Superior Proposal or if the SPC Board of Directors recommends an
SPC Superior  Proposal to the stockholders of SPC, or (ii) in the event the vote
of the  stockholders  of SPC  contemplated by this Agreement shall not have been
obtained by reason of the failure to obtain the required  vote upon a vote taken
at a meeting  of  stockholders  duly  convened  therefor  or at any  adjournment
thereof (an "SPC Negative  Vote") if prior to such SPC Negative Vote there shall
have occurred an Acquisition  Proposal with respect to SPC which shall have been
publicly  disclosed and not withdrawn;  or (iii) in the event of an SPC Negative
Vote if prior to such SPC Negative Vote the Board of Directors of SPC shall have
withheld,   withdrawn   or  modified   in  a  manner   adverse  to  Allegro  its
recommendation in favor of the Merger or (y) $750,000 in the event of (i) an SPC
Negative  Vote if SPC shall not be  required to make  payment of the  $1,000,000
required  by clause  (x) above or (ii) a  failure  to  perform  or  observe  any
covenant of SPC contained herein.
 
     (c) Allegro  shall  immediately  make  payment to SPC (by wire  transfer or
certified or cashiers check) of $750,000 in the event of (i) an Allegro Negative
Vote or (ii) a failure to perform or observe any  covenant of Allegro  contained
herein.
 
     (d) Payment of the fees described in Section 7.3(b) and (c) above shall not
be in lieu of damages incurred in the event of breach of this Agreement.
 
     7.4 Amendment.  Subject to applicable law, this Agreement may be amended by
the parties  hereto at any time by execution of an instrument in writing  signed
on behalf of each of the parties hereto.
 
     7.5  Extension;  Waiver.  At any time prior to the Effective Time any party
hereto  may,  to the  extent  legally  allowed,  (i)  extend  the  time  for the
performance of any of the obligations or other acts of the other parties hereto,
(ii) waive any inaccuracies in the  representations  and warranties made to such
party contained  herein or in any document  delivered  pursuant hereto and (iii)
waive  compliance  with any of the  agreements or conditions  for the benefit of
such party contained herein.  Any agreement on the part of a party hereto to any
such  extension or waiver shall be valid only if set forth in an  instrument  in
writing signed on behalf of such party.
 
                                  ARTICLE VIII
 
                               GENERAL PROVISIONS
 
     8.1 Non-Survival of Representations and Warranties. The representations and
warranties  of SPC,  Allegro and Merger Sub  contained in this  Agreement  shall
terminate at the  Effective  Time,  and only the  covenants  that by their terms
survive the Effective Time shall survive the Effective Time.
 
     8.2 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 sent via telecopy (receipt confirmed) to the parties at the
following  addresses or telecopy  numbers (or at such other  address or telecopy
numbers for a party as shall be specified by like notice):
 
 
<PAGE>

         (a) if to Allegro or Merger Sub, to:
 
          Allegro New Media, Inc.
          3 Oak Road
          Fairfield, New Jersey 07004
          Attention: Barry A. Cinnamon
            President
          Telephone No.: (201) 808-1992
          Telecopy No.: (201) 808-2645
 
          with a copy to:
 
          Blau, Kramer, Wactlar & Lieberman, P.C.
          100 Jericho Quadrangle
          Jericho, New York 11753
          Attention: Neil M. Kaufman, Esq.
          Telephone No.: (516) 822-4820
          Telecopy No.: (516) 822-4824
 
        (b) if to SPC, to:
 
           Software Publishing Corporation
           111 North Market Street
           San Jose, CA 95113
           Attention: Miriam Frazer
           Telephone No.: (408) 537-3000
           Telecopy No.: (408) 537-3506
 
           with a copy to:
 
          Wilson Sonsini Goodrich & Rosati, Professional Corporation
          650 Page Mill Road
          Palo Alto, CA 94304-1050
          Attention: Herbert Fockler, Esq.
          Telephone No.: (415) 493-9300
          Telecopy No.: (415) 493-6811
 
     8.3 Interpretation; Knowledge.
 
          (a) When a reference is made in this Agreement to Exhibits, such
     reference shall be to an Exhibit to 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 table of contents and headings contained in this Agreement
     are for reference purposes only and shall not affect in any way the meaning
     or interpretation of this Agreement. When reference is made herein to "the
     business of" an entity, such reference shall be deemed to include the
     business of all direct and indirect subsidiaries of such entity. Reference
     to the subsidiaries of an entity shall be deemed to include all direct and
     indirect subsidiaries of such entity.
 
          (b) For purposes of this Agreement, the term "knowledge" means, with
     respect to any matter in question, that the executive officers of SPC or
     Allegro, as the case may be, have actual knowledge of such matter.
 
     8.4   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  party,  it being  understood  that all
parties need not sign the same counterpart.
 
     8.5 Entire Agreement.  This Agreement and the documents and instruments and
other  agreements  among the parties  hereto as  contemplated  by or referred to
herein,  including SPC Schedules and the Allegro  Schedules (a)  constitute  the
entire agreement among the parties with respect to the subject matter hereof and
supersede all prior agreements and understandings,  both written and oral, among
the parties with respect to the subject matter hereof,  it being understood that
the Confidentiality  Agreement shall continue in full force and effect until the
Closing and shall survive any  termination  of this  Agreement;  and (b) are not
intended  to confer  upon any other  person  any rights or  remedies  hereunder,
except as set forth herein.
 

<PAGE>

     8.6 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.
 
     8.7 Other  Remedies;  Specific  Performance.  Except as otherwise  provided
herein,  any and all remedies  herein  expressly  conferred upon a party will be
deemed  cumulative with and not exclusive of any other remedy conferred  hereby,
or by law or equity  upon such  party,  and the  exercise  by a party of any one
remedy will not preclude the exercise of any other  remedy.  The parties  hereto
agree  that  irreparable  damage  would  occur  in  the  event  that  any of the
provisions  of this  Agreement  were not  performed  in  accordance  with  their
specific terms or were  otherwise  breached.  It is accordingly  agreed that the
parties shall be entitled to an injunction or injunctions to prevent breaches of
this Agreement and to enforce  specifically  the terms and provisions  hereof in
any court of the United States or any state having  jurisdiction,  this being in
addition to any other remedy to which they are entitled at law or in equity.
 
     8.8  Governing  Law. This  Agreement  shall be governed by and construed in
accordance  with the laws of the State of Delaware,  regardless of the laws that
might otherwise govern under applicable  principles of conflicts of law thereof.
Each of the parties hereto irrevocably consents to the exclusive jurisdiction of
any state or federal court within the State of Delaware,  in connection with any
matter based upon or arising out of this  Agreement or the matters  contemplated
herein,  agrees that process may be served upon them in any manner authorized by
the laws of the State of Delaware for such persons and waives and  covenants not
to  assert  or plead any  objection  which  they  might  otherwise  have to such
jurisdiction and such process.
 
     8.9 Rules of  Construction.  The parties  hereto  agree that they have been
represented  by counsel during the  negotiation  and execution of this Agreement
and, therefore, waive the application of any law, regulation, holding or rule of
construction  providing that  ambiguities in an agreement or other document will
be construed against the party drafting such agreement or document.

     8.10  Assignment.  No party may assign either this  Agreement or any of its
rights,  interests,  or obligations hereunder without the prior written approval
of the other parties.
 
     IN WITNESS WHEREOF, Allegro, Merger Sub, and SPC have caused this Agreement
to be signed by themselves or their duly authorized respective officers,  all as
of the date first written above.
 
                                       ALLEGRO NEW MEDIA, INC.

                                       By: /s/       BARRY CINNAMON
                                         ------------------------------------
                                       Name: Barry Cinnamon
                                       Title: Chairman

                                       SOFTWARE PUBLISHING CORPORATION

                                       By: /s/        FRED GIBBONS
                                         ------------------------------------
                                       Name: Fred Gibbons
                                       Title: Chairman

                                       By: /s/        MIRIAM FRAZER
                                         ------------------------------------
                                       Name: Miriam Frazer
                                       Title: V.P. Finance and Chief Financial
                                       Officer

                                       SPC ACQUISITION CORPORATION

                                       By: /s/       BARRY CINNAMON
                                         ------------------------------------
                                       Name: Barry Cinnamon
                                       Title: President
 


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