EXHIBIT 11
<TABLE>
                            DATA GENERAL CORPORATION

               COMPUTATION OF BASIC AND DILUTED EARNINGS PER SHARE
                                   (Unaudited)

                     (In thousands except per share amounts)


                                                                        Quarter Ended                     Nine Months Ended
                                                            ----------------------------------      ---------------------------
                                                                 Jun. 27,       Jun. 28,              Jun. 27,        Jun. 28,
                                                                   1998           1997                  1998            1997
                                                                 --------       --------              --------        --------
<S>                                                              <C>            <C>                  <C>              <C>
Basic earnings per share:
Net income (loss)...........................................     $(155,090)     $ 14,745             $(156,095)       $  38,941
                                                                ==========      ========             =========        =========

Weighted average shares outstanding.........................        49,159        40,625                48,895           40,155
                                                                    ======        ======                ======           ======

Net income (loss) per share.................................        $(3.15)        $0.36                $(3.19)            0.97
                                                                   =======         =====               =======            =====

Earnings per share assuming full dilution: (a)
Net income (loss)...........................................     $(155,090)     $ 14,745             $(156,095)       $  38,941
                                                                ==========      ========            ==========        =========

Weighted average shares outstanding.........................        49,159        40,625                48,895           40,155

Incremental shares from use of treasury
  stock method for stock options............................            --         2,951                    --            2,703
                                                               -----------      --------           -----------        ---------    

Common and common equivalent shares,
  assuming full dilution, where applicable..................        49,159        43,576                48,895           42,858
                                                                    ======        ======               =======          =======

Net income (loss) per share.................................        $(3.15)        $0.34                $(3.19)           $0.91
                                                                   =======         =====               =======            =====

<FN>

(a)   For the quarters and  nine-month  periods ended June 27, 1998 and June 28,
      1997, 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 quarter and  nine-month  period ended June 27, 1998,
      the assumed  exercise of stock options,  giving effect to the  incremental
      shares,   results  in  anti-dilution   and  has  been  excluded  from  the
      calculation.

</FN>
</TABLE>