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Altair 8080
It never had a monitor but you had to control is to flick some buttons. -
Apple Computer
The Apple computer was also knowed as the first apple computer and it was hand built by Steve Wozaniak and Steve Jobs -
Apple 2 Computer
The first mass marketed personal computer and took apple to the next level -
IBM Personal Computer
first personal computer from IBM and they were previously they made computer a large corporations.