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Glossary » toggle key

toggle key

a key on the keyboard that toggles between two modes. The most common is the CAPS LOCK key which causes all letters to appear as capitals when it is activated. Other common toggle keys include NUM LOCK (alternates between the numeric keypad used for numeric entry and using it for cursor movement) and SCROLL LOCK (used to stop a screenful of information from scrolling past, which is not a common problem with modern interfaces).