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
QWERTY through the key. On Macintosh computers, the "Norwegian" and "Norwegian extended" keyboard layouts have a slightly different placement for some of the symbols obtained with the help of the or keys. Notably, the "$" sign is accessed with and "¢" with . Furthermore, the frequently used "@" is placed between and . Most typewriters use a QWERTZ keyboard with Polish letters (with diacritical marks) accessed directly (officially approved as "Typist's keyboard", , Polish Standard PN-87), which is mainly ignored in Poland as impractical (except custom-made, e.g., in public sector and some Apple computers); the "Polish programmer's" () layout has become