Host terminal system

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Host terminal system is a term used in electronic data processing .

Before the client-server system could establish itself, the host-terminal relationship was the dominant working principle in data processing. An expensive and powerful central computer ( host , mainframe ) served a number of terminals . These terminals were pure input / output devices without their own storage or computing capacity. The central computer provided storage capacity and computing time using the time sharing / slicing method.

The system is currently often used to connect external additional devices or small devices to a computer .