first video
game
"Computer Space" which was Atari's first video game. I think someone may
correct me and tell me it wasn't "Atari" yet, but it was created by Nolan
Bushnell.
Spacewar for the PDP-1 is the granddaddy. Still runs, once a year
(hopefully, if the West Coast computer museum keeps up the tradition).
Then I suppose there were probably simulations run for the SAGE system in
the 1950s, but they probably were not fun and do not count.
If the definition of "personal" is
"integrated CPU, keyboard and video
output" then that would be the Sol-20 from 1976. This was first proposed
at the First Annual Vintage Computer Festival, and once you've done your
own research you will tend to agree. Some will argue that the Apple ][
was the first (by this definition). But the Sol-20 beat it by a few
months.
When did the Sphere-1s start shipping? My boards have 1975 dates on them.
The Sphere-1s were also integrated systems, with a standard setup having
the 6800 CPU board, a video board, 16K RAM, and a serial interface board.
William Donzelli
william(a)ans.net