wiki:
“The first successfully mass marketed personal computer was the Commodore PET introduced in January 1977”
BTW, I did live through those years...and my memory is that the apple was way over priced even back then. When the Apple II came out, it was the best looking computer you could buy, just as today...but definitely not the best bang for the buck, just as today.
And not the first.
The current value of Apple and Commodore put that wiki statement to bed as false.
Commodore wasn't sucessful, in the long run.
And I owned the PET, back when they were kits.
/johnny