Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!ames!ucbcad!ucbvax!decvax!decwrl!nsc!voder!apple!dgold From: dgold@apple.UUCP Newsgroups: comp.sys.mac Subject: Re: Mac Plus with 256K ROMs? Message-ID: <614@apple.UUCP> Date: Wed, 8-Apr-87 17:39:22 EST Article-I.D.: apple.614 Posted: Wed Apr 8 17:39:22 1987 Date-Received: Sat, 11-Apr-87 09:44:51 EST References: Reply-To: dgold@apple.UUCP (David Goldsmith) Organization: Apple Computer Inc., Cupertino, USA Lines: 27 In article rs4u#@ANDREW.CMU.EDU (Richard Siegel) writes: >... > Does this mean that it's possible to upgrade a Mac Plus with a pair >of ROMS from the Mac SE? Would a Plus so upgraded behave properly >(as far as compatibility with Plus and SE)? Although the Mac Plus can accept 256K ROMs, the SE ROMs would not work in a Mac Plus. This is because of the differences in hardware (the Plus uses the old keyboard bus, but the SE uses ADB, for example) between the two machines. There is currently no ROM image in existence which corresponds to the SE ROMs but adapted for the Mac Plus hardware. In any case, this isn't really necessary. There is no non-hardware-related feature of the SE ROMs which is not being made available to Plus users via patches (I hope my English teacher never sees that sentence). If you run system 4.1 or later on your plus (or 512E) you'll get the new TextEdit, menu manager, and font manager that the SE and II have. All other changes in the SE ROM are tightly tied to the SE hardware. -- David Goldsmith Apple Computer, Inc. MacApp Group AppleLink: GOLDSMITH1 UUCP: {nsc,dual,sun,voder,ucbvax!mtxinu}!apple!dgold CSNET: dgold@apple.CSNET, dgold%apple@CSNET-RELAY BIX: dgoldsmith