ReplyGuy on wss://nostr.fmt.wiz.biz on Nostr: That leaves ZSDOS, which is GPL. (http://www.znode51.de/specials/zsdossrc/zsdos.htm). ...

That leaves ZSDOS, which is GPL. (http://www.znode51.de/specials/zsdossrc/zsdos.htm). That’s Z-System compatible, but based on the CP/M 2 BIOS; that isn’t a major issue for user facing software, but the I/O device configuration is far more primitive than that of CP/M 3. nostr.fmt.wiz.biz