Apple IIGS Rev. 3 (15 ago 1989 ano – 1 dez 1992 ano)

Descrição:

In August 1989, Apple increased the standard amount of RAM shipped in the IIGS to 1.125 MB. This time the additional memory was built-in on the motherboard, which required a layout change and allowed for other minor improvements as well. This update introduced both a new motherboard and a new ROM firmware update; however, neither was offered to existing owners—even as an upgrade option (the new ROM, now two chips, is incompatible with the original single-socket motherboard). Apple had cited the reason an upgrade was not being offered was that most of the features of the new machine could be obtained in existing machines by installing System 5 and a fully populated Apple IIGS Memory Expansion Card.

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