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Teletype teleprinters in use in England during World War II Example of teleprinter art: a portrait of Dag Hammarskjöld, 1962. A teleprinter (teletypewriter, teletype or TTY) 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.
Charles Lyon Krum (1851/2 – September 25, 1937) [1] was a key figure in the development of the teleprinter, a machine which played a key role in the history of telegraphy and computing. [ 2 ] In 1902, electrical engineer Mr. Frank Pearne approached Mr. Joy Morton , head of Morton Salt , seeking a sponsor for Pearne's research into the ...
The Teletype Inktronic Terminal is an electronic, high-speed teleprinter that uses electrostatic deflection to print characters at 1200 words-per-minute. The Inktronic terminal prints an 80 column page using forty jets to print 63 alphanumeric characters in two columns on an 8.5 inch roll of paper.
Teletype Corporation's Model 28 line of communications terminals was first delivered to the US Military in 1951 [1] and commercially introduced in 1953. This series of teleprinters and associated equipment was popular in the various branches of the United States Armed Forces, and commercially in the financial and manufacturing industries.
A Baudot keyboard, 1884 A Creed Model 7 teleprinter, 1931. A teleprinter is a telegraph machine that can send messages from a typewriter-like keyboard and print incoming messages in readable text with no need for the operators to be trained in the telegraph code used on the line.
Teletype Model 33 ASR teleprinter keyboard with punched tape reader and punch. The left-front unit is the tape reader with its three-position START/STOP/FREE lever in the STOP position. A less-common tape reader had a four-position START/AUTO/STOP/FREE lever. In the AUTO position it could be commanded on and off remotely.
When a key of the teleprinter keyboard is pressed, a 5-bit character is generated. The teleprinter converts it to serial format and transmits a sequence of a start bit (a logical 0 or space), then one after the other the 5 data bits, finishing with a stop bit (a logical 1 or mark, lasting 1, 1.5 or 2 bits). When a sequence of start bit, 5 data ...
Although best known for the teleprinter, Kleinschmidt also invented many other devices, including an automatic fishing reel and a vaccination shield, and is credited with making major improvements to the Wheatstone (stock market ticker tape) perforator. [4] He also invented a macaroni-twisting machine. His inventions made him a multi-millionaire.