<First, the infamous ones
<
<Computer with the worst keyboard: (tie) Sinclair ZX-81/Timex Sinclair 1000
<IBM PC Jr.
You forgot the commodore pet... another really baaddd one.
<Computer with the most limitations: Timex Sinclair 1000/Sinclair ZX-81.
Only exceeded by the base cosmac elf, NSC SC/MP and a slew of other SBCs.
<Computer with the best keyboard: (tie) Commodore 64(C), & TRS-80 Model 12.
IBM PC XT, layout is not a favorite of mine but the feel was the best.
<Most famous "vaporware" computer: Xerox Alto.
Nope Check up on World Power Systems... read scam.
You left out the terminals:
Vt100 set a standard.
Vt220 advanced it.
Allison