"switching" - key terms from Wikipedia

bank switching
circuit switching
class switching
code switching
demand based switching
fast user switching
fringe field switching
label switching
message switching
mobile switching
mobile switching center
mobile switching centre
multiprotocol label switching
network switching subsystem
packet switching
protection switching
switching
switching between
switching bodies
switching costs
switching equipment
switching fabric
switching frequency
switching network
switching power
switching regulators
switching system
task switching
torque switching