50 years ago, CP/M started the microcomputer revolution

August 21, 2024

It’s almost exactly 50 years since the start of the personal computing revolution–which can be traced as much as anywhere to the first OS for what’re then called microcomputers, CP/M.

While it came to be eclipsed by MS-DOS, it shaped what such operating systems looked like (MS-DOS was a rebranded QDOS, a CP/M clone).

So half a century on, we can give thanks to CP/M, and its creator Dr Gary Kildall. The story is worth a read-for the what-ifs of history (what if Intel had acquired CP/M and not just the programming language Kindal developed and create d it in? What if Kindal had licensed CP/M to IBM for their PC project?)