Num Lock

Num LockShort for numeric lock or number lock, the Num Lock key is located on the top left corner of the numeric keypad of the keyboard and enables and disables the numeric pad. Turning the Num Lock on allows you to use the numbers on the keypad and turning the Num Lock off enables the keys other functions such as using the keypad as an arrow pad. The picture shows a what the Num Lock with LED may look like on a keyboard.

Below is a chart with additional information about what each key does when Num Lock is enabled and disabled. For example, as the "2" key when Num Lock is enabled enters the number "2" when pressed and when Num Lock is off arrows down one line.

Key Num lock enabled Num lock disabled
0 0 Ins
1 1 End
2 2 Down arrow
3 3 PgDn
4 4 Left arrow
5 5 Nothing
6 6 Right arrow
7 7 Home
8 8 Up arrow
9 9 PgUp
. . Del

Related pages

Also see: Keyboard terms, Number, Numeric keypad, Togglekeys