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The first time you could every truly run two Mac OS programs at the same time (non-cooperatively) was when you were running two copies of ShapeShifter on an Ami
by spullara 5y ago
The first time you could every truly run two Mac OS programs at the same time (non-cooperatively) was when you were running two copies of ShapeShifter on an Amiga. Pulling down the Mac OS desktop screen to reveal the other Mac OS desktop behind was super cool.