pagetable@mastodon.social on Twitter: "C64 CP/M Cartridge https://t.co/6gkNvYqC9X The cartridge that makes a C64 a “dual processor” computer: Commodore's CP/M cartridge for C64 contains a Z80 CPU and comes with version 2.2 of
Cye's blog: CP/M on Commodore 128
What Was CP/M, and Why Did It Lose to MS-DOS?
Osborne - my 1st portable computer OS = CPM (pre DOS) orange text - 23k of ram - no HDD - dual single sided 5 1/2" flo… | Portable computer, Security tips, Computer
The many derivatives of the CP/M operating system • The Register