REGISTRATION RIGHTS AGREEMENT

         THIS REGISTRATION RIGHTS AGREEMENT (this "Agreement"), dated as of June
11, 1999,  is by and between Base Ten  Systems,  Inc., a New Jersey  corporation
(the  "Company")  and  Almedica   International  Inc.,  a  Delaware  corporation
("Almedica").

         WHEREAS, the Company,  Ex-BTS Clinical,  Inc., a New Jersey corporation
("BTSC"),  Almedica and Almedica Technology Group Inc., a New Jersey corporation
("ATG") are parties to that certain  Agreement  and Plan of Merger,  dated as of
June 11, 1999 (the "Merger Agreement"); and

         WHEREAS, unless otherwise defined in this Agreement,  capitalized terms
used in this  Agreement  shall have the  meanings  ascribed to such terms in the
Merger Agreement; and

         WHEREAS,  the Merger Agreement provides for the merger of BTSC with and
into ATG; and

         WHEREAS,  the 736 shares of capital stock of ATG issued and outstanding
immediately  prior to the Effective  Time (the "ATG Shares")  shall be converted
into and exchanged for an aggregate of 3,950,000 shares of Class A Common Stock,
par value $1.00 per share,  of the Company  (the "Base Ten Shares") to Almedica;
and

         WHEREAS,  the Company desires to grant to Almedica certain registration
rights in  certain  circumstances  with  respect  to such Base Ten  Shares  (the
"Registrable Securities");

         NOW  THEREFORE,  in  consideration  of  the  premises  and  the  mutual
covenants and  agreements  contained  herein,  and intending to be legally bound
hereby, the parties to this Agreement hereby agree as follows:

         1.       Registration Rights.

                  (a) Registration Conditions. Almedica shall not be entitled to
any  registration  rights  pursuant  to this  Agreement  until June 12, 2000 and
unless a period of 12 months has elapsed since the Closing Date,  and the number
of the Registrable  Securities then beneficially  owned by Almedica  constitutes
10% or  more  of the  Company's  then  outstanding  Class A  Common  Stock.  The
conditions  set  forth  in  this  Section  1(a)  shall  be  referred  to as  the
"Registration Conditions."

                  (b) Mandatory  Registration.  Provided  that the  Registration
Conditions  have been  satisfied,  the Company  shall,  within 45 days following
receipt of a written request by Almedica,  file a Registration Statement on Form
S-3 (if such form is then  available for use by the Company,  or if such form is
not then  available  for use by the  Company,  such form as is  available to the
Company)  permitting  the  registration  of all or a portion of the  Registrable
Securities  for  resale by  Almedica  in the  manner  reasonably  designated  by
Almedica;  provided,  however, the Company shall not be required to use any form
other than a Form S-3 (or such other form) so long as the Company's inability to
use a Form S-3 is solely a result of  Almedica's  breach of  Section  7.8 of the
Merger Agreement. Almedica shall only be entitled to make one demand pursuant to
this Section 1(b), notwithstanding the fact that its one demand may cover only a
portion of the  Registrable  Securities  then  beneficially  owned by  Almedica;
provided,  however,  that a demand  shall not be  treated  as a demand  unless a
registration  statement  covering  all of the shares as to which such demand was
made becomes  effective for the full period  covered by the following  sentence.
Once effective,  the Company shall use commercially  reasonable  efforts to keep
such registration  statement  continuously effective under the Securities Act of
1933 (the  "Securities  Act")  until the earlier of (i) the date on which all of
the  Registrable  Securities  have  been  sold,  or  (ii)  360  days  after  the
effectiveness of such registration statement (the "Registration Period").

                  (c) Piggyback  Registration.  Provided  that the  Registration
Conditions have been satisfied, the Company shall, at least 30 days prior to the
filing of any  registration  statement  under the  Securities  Act (other than a
registration  statement on Form S-8 or Form S-4 or any  comparable  or successor
forms) relating to the public offering of its Common Stock by the Company or any
of its security holders,  give written notice of such proposed filing and of the
proposed  date thereof to Almedica,  and if, on or before the 20th day following
the date on which such  notice is given,  the  Company  shall  receive a written
request from Almedica  requesting  that the Company include among the securities
covered  by  such  registration   statement  some  or  all  of  the  Registrable
Securities,  the Company  shall  include  such  Registrable  Securities  in such
registration statement, if filed, so as to permit such Registrable Securities to
be sold or  disposed of in the manner and on the terms of the  offering  thereof
set forth in such request.  If the managing  underwriter  advises the Company in
writing  that  the  inclusion  in  such  registration  of  some  or  all  of the
Registrable Securities sought to be registered by Almedica creates a substantial
risk  that the  proceeds  or price  per share  that  will be  derived  from such
registration  will be reduced or that the number of shares to be  registered  at
the insistence of Almedica,  plus the number of shares of Common Stock sought to
be  registered by the Company and any other  stockholders  of the Company is too
large a number to be reasonably  sold, then, in such event, the number of shares
sought to be registered  for the  stockholders  of the Company shall be reduced,
pro rata in  proportion  to the number of shares  sought to be registered to the
number  of  shares  recommended  be  sold  by  the  managing  underwriter.   Any
Registrable  Securities  excluded or withdrawn from such  underwriting  shall be
withdrawn  from such  registration.  With  respect to any  excluded or withdrawn
Registrable  Securities and any Registrable Securities not covered by Almedica's
request for  inclusion in such  registration  statement,  Almedica  shall remain
entitled to receive  additional  notices pursuant to this Section 1(c) until all
Registrable  Securities  have been included in a registration  statement  either
pursuant to Section 1(b) or 1(c) of this Agreement.  Once effective, the Company
shall use commercially  reasonable  efforts to keep such registration  statement
continuously effective under the Securities Act during the Registration Period.


         2. Terms and Conditions of Registration.  Except as otherwise  provided
herein, in connection with any registration  statement filed pursuant to Section
1 above, the following provisions shall apply:


                           (a) In connection with a registration statement filed
pursuant to Section  1(c) above,  the  Company  will enter into an  underwriting
agreement  with  the  underwriters  for  such  offering,  such  agreement  to be
reasonably  satisfactory in form and substance to the Company,  Almedica and the
underwriters,  and to contain such representations,  warranties and covenants by
the Company and such other terms as are customarily contained in such agreements
used by the managing underwriter, including, without limitation, restrictions of
sales of Class A Common  Stock or  other  securities  by the  Company  as may be
reasonably agreed to between the Company and such  underwriters.  Almedica shall
be a party to any underwriting agreement relating to an underwritten sale of the
Registrable Securities and may, at Almedica's option, require that any or all of
the  representations,  warranties  and  covenants  of the  Company to or for the
benefit  of such  underwriters,  shall  also be made to and for the  benefit  of
Almedica. All representations and warranties of Almedica shall be made to or for
the benefit of the Company.


                           (b) The Company  shall  provide a transfer  agent and
registrar  (which may be the same entity) for the  Registrable  Securities,  not
later than the effective date of such registration.


                           (c) All expenses in connection  with the  preparation
and filing of such registration  statement shall be borne solely by the Company,
except for any transfer  taxes payable with respect to the  disposition  of such
Registrable  Securities,  and any underwriting discounts and selling commissions
applicable solely to such sales of Registrable  Securities,  which shall be paid
by Almedica.


                           (d) Following the effective date of such registration
statement,  the Company shall,  upon the request of Almedica,  forthwith  supply
such  number  of  prospectuses   (including  exhibits  thereof  and  preliminary
prospectuses and amendments and supplements thereto) meeting the requirements of
the Securities Act and such other documents as are referred to in the prospectus
as shall be reasonably requested by Almedica to permit Almedica to make a public
distribution of the Registrable Securities.


                           (e) The Company shall prepare, if necessary, and file
such  amendments  and  supplements  to such  registration  statement,  as may be
necessary to keep such registration  statement effective,  subject to applicable
laws, rules and orders, during the Registration Period.


                           (f) The  Company  shall use  commercially  reasonable
efforts to register  the  Registrable  Securities  covered by such  registration
statement  under such  securities or Blue Sky laws in addition to those in which
the Company would otherwise sell shares, as Almedica reasonably requests, except
that neither the Company nor Almedica  shall for any such purpose be required to
execute a general  consent to service of process or to qualify to do business as
a foreign  corporation  in any  jurisdiction  where it is not so qualified.  The
filing fees incurred in connection with such registration  shall be borne by the
Company.


                           (g) Almedica shall  cooperate  fully with the Company
and provide the Company with all information reasonably requested by the Company
for inclusion in the  registration  statement or as necessary to comply with the
Securities Act.


                           (h) The Company  shall notify  Almedica,  at any time
after  effectiveness  when a  prospectus  relating  thereto  is  required  to be
delivered  under the Securities Act of the happening of any event as a result of
which the prospectus included in such registration statement, as then in effect,
includes an untrue  statement of a material  fact or omits to state any material
fact required to be stated therein or necessary to make the  statements  therein
not misleading in light of circumstances then existing (and upon receipt of such
notice and until a  supplemented  or amended  prospectus  as set forth  below is
available,  Almedica  shall not  offer or sell any  securities  covered  by such
registration  statement  and shall return all copies of such  prospectus  to the
Company if requested to do so by it), and at the request of Almedica prepare and
furnish Almedica promptly a reasonable number of copies of a supplement to or an
amendment of such prospectus as may be necessary so that such  prospectus  shall
not include an untrue  statement of a material  fact or omit to state a material
fact required to be stated therein or necessary to make the  statements  therein
not misleading in light of the circumstances than existing.


                           (i) The  Company  will  use  commercially  reasonable
efforts to comply with the  reporting  requirements  of Sections 13 and 15(d) of
the  Securities  Exchange  Act of 1934,  as  amended,  to the extent it shall be
required to do so pursuant to such sections,  and at all times while so required
shall  use  commercially  reasonable  efforts  to comply  with all other  public
information  reporting  requirements of U.S.  Securities and Exchange Commission
(the  "Commission")  Rule 144 promulgated by the Commission under the Securities
Act from time to time in effect to provide  Almedica with the availability of an
exemption from the  Securities  Act for the sale of any of the Company's  common
stock held by  Almedica.  The  Company  will also  cooperate  with  Almedica  in
supplying such information and documentation as may be necessary for Almedica to
complete  and  file any  information  reporting  forms  presently  or  hereafter
required by the  Commission as a condition to the  availability  of an exemption
from  the  Securities  Act for the  sale of any  Company  common  stock  held by
Almedica.


                           (j) In the event of any registration pursuant to this
Agreement,  the Company  agrees to indemnify  and hold  harmless,  to the extent
permitted by law,  Almedica and each person who  controls  Almedica  (within the
meaning of the Securities Act) against all losses, claims, damages,  liabilities
and expenses to which  Almedica or such  controlling  person may become  subject
under the  Securities  Act which are  caused  by any  untrue or  alleged  untrue
statement of material  fact  contained  in the  registration  statement,  or any
omission or alleged omission of a material fact required to be stated therein or
necessary to make the statements  therein not misleading,  except insofar as the
same are caused by or contained in any  information  furnished to the Company by
or on behalf of Almedica or such controlling person for use therein.


         3.       Miscellaneous.

                  (a) Amendments and Waivers.  This Agreement may be amended and
the Company may take any action  herein  prohibited,  or omit to perform any act
herein  required to be performed by it, only if the Company  shall have obtained
the written consent of Almedica to such amendment, action or omission to act.

                  (b)  Successors and Assigns.  This Agreement  shall be binding
upon and shall inure to the benefit of the parties  hereto and their  respective
successors and assigns,  but not transferees of the  Registrable  Securities who
are then  present or former  employees of Almedica or any entity that is then or
was a subsidiary of Almedica.

                  (c) Notices. All notices and other communications provided for
in this  Agreement will be in writing and will be either  personally  delivered,
mailed by first  class mail  (postage  prepaid) or sent by  reputable  overnight
courier service (delivery charges prepaid) to any party at the address specified
below,  or at such other  address or to such other  person as  provided by prior
written notice:


                           If to the Company:

                           Base Ten Systems, Inc.
                           One Electronics Drive
                           Trenton, New Jersey
                           Attention:  President
                           Facsimile Number:  (609) 586-3677

                           With a copy to:

                           Pitney, Hardin, Kipp & Szuch
                           200 Campus Drive
                           P.O. Box 1945
                           Morristown, New Jersey  07962-1945
                           Attention:  Joseph Lunin
                           Facsimile Number:  (973) 966-1550


                           If to Almedica:

                           Almedica International Inc.
                           75 Commerce Drive
                           Allendale, New Jersey  07401
                           Attention:  President
                           Facsimile Number:  (201) 995-0728

                           With a copy to:

                           Skadden, Arps, Slate, Meagher & Flom LLP
                           919 Third Avenue
                           New York, New York  10022
                           Attention:  Richard T. Prins
                           Facsimile Number:  (212) 451-7519

Any such notice will be deemed to have been given when delivered personally,  on
the third  business  day after  deposit in the U.S.  mail or on the business day
after deposit with a reputable overnight courier service, as the case may be.

                  (d) Descriptive  Headings.  The  descriptive  headings of this
Agreement are inserted for convenience only and do not constitute a part of this
Agreement.

                  (e)  Severability.  If any provision of this Agreement is held
to be invalid  for any reason  whatsoever,  then such  provision  will be deemed
severable  from the remaining  provisions  of this  Agreement and will in no way
affect the validity or enforceability of any other provision of this Agreement.

                  (f)  Counterparts.  The parties to this  Agreement may execute
this  Agreement  in  separate  counterparts  (no one of which need  contain  the
signatures of all  parties),  each of which will be an original and all of which
together will constitute one and the same instrument.

                  (g)  Governing  Law.  This  Agreement  will be governed by and
construed  in  accordance  with the  domestic  laws of the State of New  Jersey,
without giving effect to any choice of law or conflict rule of any  jurisdiction
that  would  cause  the  laws  of  any  other  jurisdiction  to be  applied.  In
furtherance of the  foregoing,  the internal law of the State of New Jersey will
control the interpretation and construction of this Agreement, even if under any
choice of law or conflict of law  analysis,  the  substantive  law of some other
jurisdiction would ordinarily apply.

                  (h)  Jurisdiction.  Each of the parties hereby (i) irrevocably
submits to the  jurisdiction  of the state  courts of,  and the  federal  courts
located in, the State of New Jersey in any action or  proceeding  arising out of
or relating to, this  Agreement,  (ii) waives,  and agrees to assert,  by way of
motion, as a defense, or otherwise, in any such suit, action or proceeding,  any
claim that it is not subject  personally to the  jurisdiction of the above-named
courts, that its property is exempt or immune from attachment or execution, that
the suit,  action or proceeding is brought in an  inconvenient  forum,  that the
venue of the suit,  action or proceeding  is improper or that this  Agreement or
the subject  matter  hereof may not be enforced in or by such court,  and waives
and agrees not to seek any review by any court of any other  jurisdiction  which
may be called upon to grant an enforcement of the judgment of any such court.

                  (i) Merger and  Integration.  Except as otherwise  provided in
this  Agreement,  this  Agreement  sets  forth the entire  understanding  of the
parties  relating to the subject  matter hereof,  and all prior  understandings,
whether written or oral, are superseded by this Agreement.






                  IN  WITNESS  WHEREOF,   the  undersigned  have  executed  this
Registration Rights Agreement as of the date first written above.


                          BASE TEN SYSTEMS, INC.


                                   WILLIAM F. HACKETT
                          By:      _______________________________
                                   William F. Hackett
                                   Senior Vice President


                          ALMEDICA INTERNATIONAL INC.


                                   CLARK L. BULLOCK
                          By:      _______________________________
                                   Clark L. Bullock
                                   Chairman of the Board