First in BASIC, then augmented with little machine code speed-ups. We didn’t come close to [Óscar Toledo Gutiérrez] though, who’s reverse engineering a 2K all-machine-code game he wrote back ...

The Zilog Z80 was compatible with programs that ran on Intel 8080 CPUs. Allen believed that an add-in card for the Apple II would allow Microsoft BASIC to run on Apple's machine. The Z80 SoftCard ...