Keyswitch
Encyclopedia
- A keyswitch is a type of small switch used for keys on keyboardsKeyboard technologyThere are many types of keyboards, usually differentiated by the switch technology employed in their operation. Keyboards are defined by the number of highly durable switches that are incorporated into the system...
. These are now largely out of use due to most modern keyboards using sheets of plastic with contacts on them - Key switchKey switchA key switch is a switch that can be activated only by a key.Key switches are usually used in situations where access needs to be restricted to the switch's functions....
is also used to describe a switch operated by a keyKey (lock)A key is an instrument that is used to operate a lock. A typical key consists of two parts: the blade, which slides into the keyway of the lock and distinguishes between different keys, and the bow, which is left protruding so that torque can be applied by the user. The blade is usually intended to...
, usually used in burglar alarmBurglar alarmBurglar , alarms are systems designed to detect unauthorized entry into a building or area. They consist of an array of sensors, a control panel and alerting system, and interconnections...
circuits. A car ignition is also a switch of this type.