Tidying out some papers this weekend I came across a copy of an editorial from BYTE magazine for February 1982 covering the November 1981 COMDEX exhibition in Las Vegas. Right at the foot of the article, in a section headed “Other Software Developments”, the editor notes:
Intel has signed agreements with both Microsoft and Digital
Research to distribute both companies’ operating systems for a wide
variety of Intel microcomputer systems and boards. This is a
continuation of an interesting phenomenon that began when IBM announced
it was going to make available both Microsoft’s DOS operating system
and CP/M-86 for the IBM Personal Computer. With corporate giants like
Intel giving Microsoft and Digital Research a boost, it appears that
both families of operating systems will coexist for quite some time.
Within three years the game was pretty much up for Digital Research’s CP/M with Microsoft’s MS-DOS gaining popularity. Digital Research almost came back again with DR-DOS but by then the goal posts had moved towards the GUI arena.