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,[1] after it had originally been designed for the United States Navy.[2] The Model 33 was produced in three versions:[3]
- Model 33 ASR (Automatic Send and Receive), which has a built-in eight-hole punched tape reader and tape punch;
- Model 33 KSR (Keyboard Send and Receive), which lacks the paper tape reader and punch;
- Model 33 RO (Receive Only) which has neither a keyboard nor a reader/punch.
The Model 33 was one of the first products to employ the newly standardized ASCII character encoding method, which was first published in 1963.[4] A companion Teletype Model 32 used the older, established five-bit Baudot code.[5] Because of its low price and ASCII compatibility, the Model 33 was widely used with early minicomputers, and the large quantity of the teleprinter sold strongly influenced several de facto standards that developed during the 1960s and 1970s.[6]
- ^ "Auerbach Guide to Alphanumeric Display Terminals", Auerbach Publishers, 1975
- ^ "A Synopsis of Teletype Corporation History" (PDF).
- ^ Cite error: The named reference
tv_typewriterwas invoked but never defined (see the help page). - ^ Henry Jr., George W. "ASCII, BAUDOT AND THE RADIO AMATEUR". www.digigrup.org. Retrieved May 28, 2024.
- ^ Teletype Model 33 and Training Manual B-52 (PDF). General Telephone Co. p. 2.
- ^ "Teletype ASR 33". www.curiousmarc.com. Retrieved May 28, 2024.