History Teletype "torn tape" message switching [telecom]

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At one time Western Electric's subsidiary Teletype used to advertise for its machines. Before the days of electronic computer memory, paper tape served as a store and forward mechanism.

The following ad describes the "torn tape" method of message switching.

The following article describes the Pullman Teletype network.

Teletype advertised a message identifier to avoid confusion.

General ad describing dependable printed communications