Keyboard Layout: Keyboard (computing), Typewriter, Alphanumeric keyboard, QWERTY, Portuguese alphabet, QWERTZ, AZERTY, Dvorak Simplified Keyboard, Chorded keyboard, Arabic keyboard, Hebrew keyboard

A keyboard layout is any specific mechanical, visual, or functional arrangement of the keys, legends, or key?meaning associations (respectively) of a computer, typewriter, or other typographic keyboard. Mechanical layout: The placements and keys of a keyboard. Visual layout: The arrangement of the legends (markings) that appear on the keys of a keyboard. Functional layout: The arrangement of the key?meaning associations, determined in software, of all the keys of a keyboard.