<TABLE>


                                                                                                         EXHIBIT 11

                                                                           DATA GENERAL CORPORATION

                                                        COMPUTATION OF PRIMARY AND FULLY DILUTED EARNINGS PER SHARE

                                                                (In thousands except per share amounts)
<CAPTION>

                                                                                Fiscal Year Ended
                                              ---------------------------------------------------------------------------
                                                 Sept. 27,      Sept. 28,      Sept. 30,       Sept. 24,      Sept. 25,
                                                   1997            1996          1995            1994           1993
                                             --------------- -------------- -------------   -------------  -------------
<S>                                              <C>             <C>          <C>             <C>             <C>
Primary earnings per share:
Net income (loss)                                $  55,900       $  28,145    $ (46,703)     $  (87,693)      $ (60,479)
                                              ===============  ============= =============   =============  =============

Weighted average shares outstanding                 41,347          38,769       37,052          35,774         34,464

Incremental shares from use of treasury
  stock method for stock options                    2,852           2,312           814               -            412
                                              --------------- -------------- -------------   -------------  -------------

Common and common equivalent
  shares, where applicable                          44,199          41,081       37,866          35,774          34,876
                                              ===============  ============= =============   =============  =============

Net income (loss) per share                      $    1.26      $     0.68    $   (1.23)     $    (2.45)     $    (1.73)
                                              =============== ============== =============   =============  =============

Earnings per share assuming full dilution: (a)
Net income (loss)                                $  63,861      $  28,145    $ (46,703)     $  (87,693)     $ (60,479)
                                              =============== ============== =============   =============  =============

Weighted average shares outstanding                 46,992          38,769       37,052          35,774         34,464

Incremental shares from use of treasury
  stock method for stock options                     3,353           2,565          907               -            432
                                              --------------- -------------- -------------   -------------  -------------

Common and common equivalent shares
  assuming full dilution, where applicable          50,345          41,334       37,959          35,774         34,896
                                              =============== ============== =============   =============  =============

Net income (loss) per share                      $    1.27     $      0.68    $   (1.23)     $    (2.45)     $   (1.73)
                                              =============== ============== =============   =============  =============

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<FN>
(a) For the year ended  September  27, 1997,  the  conversion of the Company's 7
3/4%  Convertible  Subordinated  Debentures due 2001 was assumed to occur at the
beginning of the year.  For the years ended  September  28, 1996,  September 30,
1995,  September  24, 1994 and  September  25, 1993,  the assumed  conversion of
convertible  debentures,  giving  effect  to  the  incremental  shares  and  the
adjustment  to  reduce  interest  expense,  results  in  anti-dilution  and  has
therefore been excluded from the  computation.  For the year ended September 24,
1994,  the assumed  exercise of options  outstanding  under the Company's  stock
option plans using the treasury  stock  method,  is  anti-dilutive  and has been
excluded from the computation. 
</FN>
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