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A terminal is an electronic communication hardware device that handles the input and display of data.
A terminal may be a PC or workstation connected to a network, Voice over Internet Protocol (VOIP) network endpoint, mobile data terminal such as a telematics device, or a text terminal, or textual language interface.
Terminals vary by required data type and format. Early terminals resembled typewriters. Current versions include input keyboards and output display screens.
Terminals are divided into the following three classes, according to their processing power: