Re: rom 1 to rom 3 upgrade

[daveh@ccwf.cc.utexas.edu (Dave Huang)]

In article <ls11443@pro-scat.cts.com> bslog@pro-scat.cts.com (Bill Logsdon) writes:
>I beg yer pardon.... some of the machines sold in Europe and Canada, when
>booted, show "Rom 02"..... I have SEEN this... it did exist, and is rare..

Erm... from Apple IIgs Technote #26:

Apple currently supports two configurations of the Apple IIGS ROM, ROM 1 and
ROM 3.  In August 1989, Apple IIGS computers began shipping with a 256K ROM,
referred to as version 3 or ROM 3 (ROM 2 was skipped since there was already
enough confusion about the first version, ROM 0, and the second version, ROM
1).  System Software continues to support ROM 1, but it no longer supports ROM
0.  Authorized Apple dealers can upgrade older systems (i.e., machines with
serial numbers lower than E704...) to ROM 1 upon request.
-- 
David Huang                                 |
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