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
Dvorak Simplified Keyboard Additionally, the Dvorak layout requires the fewest strokes on the bottom row (the most difficult row to type). By contrast, QWERTY requires typists to move their fingers to the top row for a majority of strokes and has only 32% of the strokes done in the home row. Because the Dvorak layout concentrates the vast majority of key strokes to the home row, the Dvorak layout uses about 63% of the finger motion required by QWERTY, which is claimed to make the keyboard more ergonomic. In fact, it has been estimated that during a typical 8-hour day a typist's fingers