[rbanffy]

> Like the dinosaurs, it was a time of mainframes. Then everyone can do it, welcome to the PC world.

It seems you missed the years when the first S-100 personal computers appeared, the time when they ran CP/M, the Apple II, the Commodores, the Ataris... IBM-PCs were introduced in 1981 and didn't became as important as they are today until they were successfully cloned, a couple years later. Basically, you just skipped the 70's. And the minicomputers where VMS (the granddaddy of NT) and Unix were born.