File No. 33-55460
      ---------------------------------------------------------------
                    SECURITIES AND EXCHANGE COMMISSION
                          Washington, D.C. 20549

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                      POST-EFFECTIVE AMENDMENT NO. 1
                                    TO
                                 FORM S-8
                          REGISTRATION STATEMENT
                                   UNDER
                        THE SECURITIES ACT OF 1933


                            AMDAHL CORPORATION
          (Exact name of registrant as specified in its charter)

Delaware                                                         94-1728548
(State or other jurisdiction                                  (IRS Employer
of incorporation or organization)                       Identification No.)

                                     
1250 East Arques Avenue
Sunnyvale, California                                            94088-3470
(Address of Principal                                            (Zip Code)
Executive Offices)

                AMDAHL CORPORATION STOCK OPTION PLAN (1974)
         AMDAHL CORPORATION NON-QUALIFIED STOCK OPTION PLAN (1982)
                         (Full title of the plans)


                            Edward F. Thompson
           Vice President, Chief Financial Officer and Secretary
                            AMDAHL CORPORATION
                          1250 East Arques Avenue
                     Sunnyvale, California 94088-3470
                  (Name and address of agent for service)

                              (408) 746-6000
       (Telephone number, including area code, of agent for service)

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This Post-Effective Amendment to the Registration Statement shall
hereafter become effective in accordance with the provisions of
Section 8(c) of the Securities Act of 1933.
 . . .---------------------------------------------------------------


Item 9.  Undertakings

     The Registrant undertakes by this Post-Effective Amendment
to remove from registration 5,000,000 shares of Amdahl
Corporation common stock as registered on Form S-8, file number
33-55460, that were offered pursuant to the Amdahl Corporation
Stock Option Plan (1974) and Amdahl Corporation Non-Qualified
Stock Option Plan (1982)(the "Plans").  The removal from
registration is requested due to the termination of the Plans
upon the adoption of the Amdahl Corporation 1994 Stock Incentive
Plan at the May 5, 1994 Stockholders' Meeting.




                                SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933,
the Registrant certifies that it has reasonable grounds to
believe that it meets all of the requirements for filing on Form
S-8, and has duly caused this Post-Effective Amendment to
Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Sunnyvale,
State of California, on this 14th day of June, 1994.

                              AMDAHL CORPORATION


                              By   /s/E. Joseph Zemke
                                   --------------------------              
                                   E. Joseph Zemke
                                   President, Chief Executive
                                   Officer and Director

     Pursuant to the requirements of the Securities Act of 1933,
this Post-Effective Amendment to Registration Statement has been
signed below by the following persons in the capacities and on
the dates indicated.


Signature              Title                   Date
- ---------              ------                  ----

/s/E. Joseph Zemke     President, Chief        June 14, 1994
- ------------------     Executive Officer and
E. Joseph Zemke        Director (Principal 
                       Executive Officer)

/s/Edward F. Thompson  Vice President, Chief   June 14, 1994
- ---------------------  Financial Officer and
Edward F. Thompson     Secretary (Principal 
                       Financial Officer)

/s/Ernest B. Thompson  Vice President and      June 14, 1994
- ---------------------  Controller (Principal
Ernest B. Thompson     Accounting Officer)


/s/John C. Lewis*      Chairman of the Board
- -----------------      of Directors
John C. Lewis


/s/Keizo Fukagawa*     Director
- ------------------
Keizo Fukagawa


/s/E. F. Heizer, Jr.*  Director
- ---------------------
E. F. Heizer, Jr.


                       Director
- ----------------
Kazuto Kojima


/s/R. Stanley Laing*   Director
- --------------------
R. Stanley Laing


/s/Burton G. Malkiel*  Director
- ---------------------
Burton G. Malkiel


/s/George R. Packard*  Director
- ---------------------
George R. Packard


/s/Walter B. Reinhold* Director
- ----------------------
Walter B. Reinhold

                       Director
- --------------------
Takamitsu Tsuchimoto 


/s/J. Sidney Webb*     Director
- ------------------
J. Sidney Webb


* By:  /s/Edward F. Thompson   Attorney in Fact    June 14, 1994
       ---------------------
       Edward F. Thompson


                               EXHIBIT INDEX


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

24             Power of Attorney