The Teletype Model 33 is an electromechanical teleprinter designed for light-duty office use. It is less rugged and cost less than earlier Teletype models. The Teletype Corporation introduced the Model 33 as a commercial product in 1963, after it had originally been designed for the United States Navy. The Model 33 was produced in three versions:Model 33 ASR, which has a built-in eight-hole punched tape reader and tape punch;
Model 33 KSR, which lacks the paper tape reader and punch;
Model 33 RO which has neither a keyboard nor a reader/punch.
Teletype Model 33 ASR teleprinter, with punched tape reader and punch, usable as a computer terminal
This 1974 advertisement emphasizes the widespread and longterm use of the Teletype Model 33
Operator's view of printing mechanism
Paper tape punch and reader visible in foreground
A teleprinter is an electromechanical device that can be used to send and receive typed messages through various communications channels, in both point-to-point and point-to-multipoint configurations.
Teletype teleprinters in use in England during World War II
Example of teleprinter art: a portrait of Dag Hammarskjöld, 1962
Hughes telegraph, an early (1855) teleprinter built by Siemens and Halske. The centrifugal governor to achieve synchronicity with the other end can be seen.
Siemens t37h (1933) without cover
