Introduced about 1963, Teletype Corporation's ASR33 was a very popular model of teleprinter. Designed for light-duty office use, it was much flimsier (and cheaper) than its heavy duty cousin, the Model 35ASR.
The printing mechanism was an array of levers, cranks, and a type cylinder wheel on a movable carriage. These mechanical parts printed up to 10 characters per second. Printing was limited to the upper case ASCII character set.
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