8. Commodore PET 2001-32-N (1978)
Critics hailed the revised, full-stroke keyboard of the updated Commodore PET (model 2001-32-N) as a huge improvement over Commodore's first PET keyboard. But Commodore still got a few layout points terribly wrong. For one thing, the design repeated the old "Run/Stop key placed directly to the left of the Return key" trick. For another, it went with the ever-popular "lack of Backspace" manoeuvre; to perform something resembling a Backspace, you had to hold Shift and the left/right cursor key above the numeric keypad. And since the creators of this keyboard included a numeric keypad in the design, they cleverly omitted numbers from the primary keyboard area altogether — if you pressed keys that would conjure up numbers on any other remotely semi-standard QWERTY keyboard, you'd get symbols instead. And hey, has anyone seen the period key? Oh, it's over there on the numeric keypad.