Tony Smith puns it up, with “Kudos to QDOS”: On 27 July 1981, Microsoft gave the name MS-DOS to the…operating system it acquired on that day from Seattle Computer Products (SCP). … The company had ...
Lordy, lordy, look who’s 40! Happy birthday, Unix — you’re looking great for your age. You certainly weren’t the first operating system on any platform, but you managed to stride from the minicomputer ...