anything 6502 SBC -- hex code / assembly, later BASIC, etc.
Timex Sinclair -- disabled screen for run so CPU could save screen code cycles
TRS-80 CoCo -- poke 65535,65536, 65537 -- clock 1x, overclock 2x, 3x
TI99/4a -- sprites + cartridges + accessible
PC Jr + Turbo Pascal -- first compiler in
anything 6502 SBC -- hex code / assembly, later BASIC, etc. Timex Sinclair -- disabled screen for run so CPU could save screen code cycles TRS-80 CoCo -- poke 65535,65536, 65537 -- clock 1x, overclock 2x, 3x TI99/4a -- sprites + cartridges + accessible PC Jr + Turbo Pascal -- first compiler in