whose function is to provide connections between different ports in a computer network. The most widely used electronic switch in digital circuits is the metal–oxide–semiconductor field-effect transistor (MOSFET). The term 'switched' is also applied to telecommunications networks, and signifies a network that is circuit switched, providing dedicated circuits for communication between end nodes, such as the public switched telephone network. The common feature of all these usages is they refer to devices that control a binary state: they are either on or off, closed or open, connected or not connected. Other switches Centrifugal switch Company switch Dead man's switch Fireman's switch Hall-effect switch Inertial switch Isolator switch Key switch Kill switch Latching switch Light switch Load control switch Membrane switch MEMS switch Optical switch Piezo switch Pull switch Push switch Railroad switch Sense switch Slotted optical switch Stepping switch Thermal switch Time switch Touch switch Transfer switch Wire switches Zero speed switch See also Circuit breaker Commutator (electric) Contact resistance DIN rail Electric switchboard Fuse cutout RF switch matrix Switch access Switchgear References External links Electrical components Human–machine interaction