Computing

• Switch (app), for job searching
• Switch (command line), a directive added to a text command to modify its behavior
• switch statement, a programming language statement which controls program flow
• Context switch, performed by an operating system in response to an interrupt
• Packet switch, a component in a packet-switched data network
  • Network switch, a computer networking device that uses a form of packet switching
• Switch access, the use of custom devices to make computing available to people with severe physical or cognitive impairment
• Payment Switch, an application that switches payment transactions between issuers and acquirers
• PCI Express switch, a switch hardware used for the PCI Express bus

Other

• Glock switch, a small device that can be attached to the rear of the slide of a Glock handgun, converting the semi-automatic pistol into a machine pistol capable of fully automatic fire
• SWITCH Information Technology Services, the Swiss education and research network
• Telephone switch, the central part of a telephone system
• Railroad switch, a mechanical installation that creates a junction between multiple railroad tracks
  • and related wire switches, on trolley wires
• Switched-mode power supply

Brands and enterprises

• Switch (company), a Nevada-based telecommunications company
• Switch (debit card), introduced in the UK in 1988 and later renamed Maestro
• Switchdigital, an operator of DAB ensembles in the UK
• Switch Mobility, manufacturer of electric buses, owned by Ashok Leyland
• Switch Press, an imprint of Capstone Publishers

Arts and entertainment