Command key keyboard of the NeXT Computer that key was marked in green. The menus were not marked with a symbol denoting the command key. Besides being used as a modifier key for keyboard shortcuts it was also used to alter the function of some keys. toggles alpha lock, sends Enter and toggles Mute. The functions were printed in green on the front side of the modified keys. This was also done on the Z, X, C and V keys (Undo, Cut, Copy and Paste). On the NeXT ADB keyboard, the Command keys were replaced by keys labeled and the Command key
PLUM keyboard keyboard layouts, their pains went away. While there are currently no good studies comparing the efficiency of the PLUM and Dvorak keyboards, the Dvorak keyboard is more mainstream, but the PLUM keyboard has a keyboard layout that many find more memorable, with the rows spelling out the words "PLUM," "READONTHIS" and "WXYZ". As of 2012, PLUM keyboards were no longer being manufactured. PLUM keyboard The PLUM keyboard is a computer keyboard which varies from the traditional QWERTY keyboard in both physical key layout and letter arrangement. Unlike most keyboards, the PLUM keyboard organizes keys in a square grid, as opposed