PROSPECTUS SUPPLEMENT FILED PURSUANT TO RULE 424(b)(3)
(To Prospectus dated July 10, 1997) Registration No. 333-30199
DATA GENERAL CORPORATION
$212,750,000 Principal Amount of 6% Convertible
Subordinated Notes due 2004
(Interest payable May 15 and November 15)
8,122,089 Shares of Common Stock
This document supplements the Prospectus dated July 10, 1997 relating to
(i) $212,750,000 aggregate principal amount of 6% Convertible Subordinated Notes
due 2004 (the "Notes") of Data General Corporation, a Delaware corporation (the
"Company"), and (ii) 8,122,089 shares of common stock, par value $.01 per share,
(the "Common Stock") of the Company which are initially issuable upon conversion
of the Notes plus such additional indeterminate number of shares of Common Stock
as may become issuable upon conversion of the Notes as a result of adjustments
to the conversion price (the "Shares"). The Notes and the Shares are being
offered for the account of the holders thereof. The Notes were initially
acquired from the Company by Morgan Stanley & Co. Incorporated and Dillon, Read
& Co., Inc in May 1997 in connection with a private offering. This Prospectus
Supplement is incorporated by reference into the Prospectus, and all terms used
herein shall have the meaning assigned to them in the Prospectus. On November 13
1997 the last sale price of the Common Stock of the Company on the New York
Stock Exchange was $17 5/8. The Common Stock of the Company is traded under the
symbol "DGN."
Selling Securityholder: McMahan Securities Company, L.P.
181 Harbor Drive
Stamford, CT 06902
Securities Being Sold: $500,000.00 aggregate principal amount
of 6% Convertible
Subordinated Notes due 2004
As of November 13, 1997, and prior to giving effect to the sale of the
Notes being offered by the Selling Securityholder hereby, the Selling
Securityholder beneficially owned $500,000.00 aggregate principal amount of
Notes, [representing less than 1% of the Notes outstanding as of such date]. [As
of such date, the Selling Securityholder did not beneficially own any shares of
Common Stock of the Company, other than the shares of Common Stock into which
the Notes beneficially owned by the Selling Securityholder are convertible].
SEE "RISK FACTORS" BEGINNING ON PAGE 4 OF THE ACCOMPANYING PROSPECTUS FOR A
DESCRIPTION OF CERTAIN FACTORS THAT SHOULD BE CONSIDERED BY PROSPECTIVE
INVESTORS.
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY
THE SECURITIES AND EXCHANGE COMMISSION OF ANY STATE
SECURITIES COMMISSION NOR HAS THE SECURITIES AND EXCHANGE
COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON
THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.
The date of this Prospectus Supplement is
November 14, 1997.
