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One of the two big GUI projects at Apple became the Apple Lisa. (The other
would become the Macintosh.) This then-powerful computer was released a
year before the Macintosh, used the same processor - clocked at 5 MHz instead
of 8 MHz - had eight times as much main memory, a bigger screen, three
Lisa expansion slots, and had an operating system that could do a lot of
the things the original Macintosh System 1 could not. These included things
like being able to run multiple programs at the same time, virtual memory,
and protected memory.
Lisa didn't sell very well because of its $10 000 price, and long
start up time - three minutes worth of self-diagnostics. At the same time
the Macintosh was released, the Lisa 2 - which simply replaced the 5.25″
floppy drives with 3.5″ diskette drives - was released. This model was
renamed the Macintosh XL a year later. The Macintosh XL was only available
for four months.
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Compact MacとGUI
