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Article View: comp.sys.mac
Article #15488

Re: Mac Plus with 256K ROMs?

#15488
From: dgold
Date: Wed, 08 Apr 1987 22:39
27 lines
1920 bytes
In article <MS.V3.18.rs4u.80022404.brownsville.ibm032.385.4@andrew.cmu.edu> 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

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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: <MS.V3.18.rs4u.80022404.brownsville.ibm032.385.4@andrew.cmu.edu>
Reply-To: dgold@apple.UUCP (David Goldsmith)
Organization: Apple Computer Inc., Cupertino, USA
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