From TechRepublic:
I was never particularly big on anniversaries. But in a couple of weeks, the computer industry will mark a milestone that deserves a moment of quiet celebration. On Aug. 12, 1981, the IBM Corporation debuted the PC.
It’s hardly hyperbole to suggest that this single announcement did more to change the world of technology than anything ever since–including the invention of the World Wide Web.
And ALTAIR produced a personal computer 5 years before IBM. I had one and it was great.