This document is a copy of the legal opinion filed on paper on April 15, 1994.

                         CHOATE, HALL & STEWART
               A Partnership Including Professional Corporations
                              EXCHANGE PLACE         
                              53 STATE STREET
                     BOSTON, MASSACHUSETTS  02109-2891
                         TELEPHONE (617) 248-5000
                         FACSIMILE (617) 248-4000
                              TELEX  49615860


                                   April 14, 1994

Stratus Computer, Inc.
55 Fairbanks Boulevard
Marlborough, MA 01752

Gentlemen:

      This opinion is delivered to you in connection with a registration 
statement on Form S-3 (the "Registration Statement") to be filed on April 15, 
1994, by Stratus Computer, Inc. (the "Company") under the Securities Act of 
1933, as amended, for registration under said Act of 410,607 shares of Common 
Stock, $.01 par value per share (the "Common Stock") of the Company.  Terms not 
otherwise defined herein shall be deemed to have the meaning ascribed such term 
in the Registration Statement.

      In connection with rendering this opinion, we have examined such
corporate records, certificates and other documents as we have considered
necessary for the purposes of this opinion.  In such examination, we have
assumed the genuineness of all signatures, the authenticity of all documents
submitted to us as originals, the conformity to the original documents of all
documents submitted to us as copies and the authenticity of the originals of
such latter documents.  As to any facts material to our opinion, we have,
when relevant facts were not independently established, relied upon the
aforesaid records, certificates and documents.

      Based upon the foregoing, we are of the opinion that the shares of Common 
Stock to be sold by the Selling Stockholders are and, when sold by the Selling 
Stockholders, will be, legally issued, fully paid and non-assessable.

      We hereby consent to be named in the Registration Statement and in any 
amendments thereto as counsel for the Company, to the statements with reference 
to our firm made in the Registration Statement, and to the filing and use of 
this opinion as an exhibit to the Registration Statement.

                                          Very truly yours,

                                          CHOATE, HALL & STEWART