lock key
Noun
Meaning
lock key (plural lock keys)
Any of certain keys of a computer keyboard that switch between certain states, which may be represented by LEDs.
Synonyms
Examples
Console scrolling Pressing the Scroll Lock key in the Linux console while text is scrolling through the screen freezes the console output (but not input) — during which no further text is printed on the screen, but the program keeps on running as usual.
On the FreeBSD system console, the Scroll Lock key additionally enables scrolling: after pressing Scroll Lock, one can use Page Up and Page Down to scroll up or down.
Emulating scroll lock Recent laptops as well as some reduced Logitech keyboards may not have a physical Scroll Lock key.
KVM switches often use the Scroll Lock key on the keyboard connected to the KVM switch for selecting between computers.
Simple models with only two or four inputs may immediately switch to the next input following a double press of the Scroll Lock key.
The keyboard routine simply records the current shift state of the Scroll Lock key.