A computer terminal is an electronic or electromechanical hardware device that can be used for entering data into, and transcribing data from, a computer or a computing system. The teletype was an example of an early-day hard-copy terminal and predated the use of a computer screen by decades.

In the context of transportation, terminals are the central buildings where a journey begins or ends. At an airport, the terminal is the facility where passengers undergo essential processing, such as checking in for flights, checking their luggage, passing through security, and eventually reclaiming their bags upon arrival. Terminals are divided into "Landside" (the area accessible to the public) and "Airside" (the area past security). While the terms are sometimes used interchangeably, the terminal is the main hub for passenger services, whereas a concourse is typically the long pier or hallway that leads to the actual boarding gates. Large international airports like London Heathrow or Atlanta Hartsfield-Jackson often have multiple terminals connected by automated people movers. In other modes of transport, a "terminal" refers to the final stop on a bus or rail line, or a port facility where cargo and passengers are loaded onto ships.