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A steno machine, stenotype machine, shorthand machine, stenograph or steno writer is a specialized chorded keyboard or typewriter used by stenographers for shorthand use. In order to pass the United States Registered Professional Reporter test, a trained court reporter or closed captioner must write speeds of approximately 180, 200, and 225 words per minute (wpm) at very high accuracy in the ...
Teletype Corporation Model 28 KSR keyboard. Model 28 Keyboard Send-Receive Page Printer. The Teletype Model 28 KSR, first delivered to the United States Navy in 1951, [1] represented approximately twelve years of research and design. The KSR is composed of a keyboard base (LK) which supports the motor unit (LMU) and the typing unit (LP) and ...
A wireless keyboard is a computer keyboard that allows the user to communicate with computers, tablets, or laptops with the help of radio frequency (RF), such as WiFi and Bluetooth or with infrared (IR) technology. Wireless keyboards in the current market are commonly accompanied by a wireless mouse . Wireless keyboards based on infrared ...
The Linotype machine operator enters text on a 90-character keyboard. The machine assembles matrices, or molds for the letter forms, in a line. The assembled line is then cast as a single piece, called a slug, from molten type metal in a process known as hot metal typesetting. The matrices are then returned to the type magazine, to be reused ...
Teletype Model 33 ASR teleprinter, with punched tape reader and punch, usable as a computer terminal. 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 ...
Typing on a laptop keyboard. A computer keyboard is a peripheral input device modeled after the typewriter keyboard [ 1][ 2] which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Replacing early punched cards and paper tape technology, interaction via teleprinter -style keyboards have been the main ...
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Duplicating machines. Duplicating machines were the predecessors of modern document-reproduction technology. They have now been replaced by digital duplicators, scanners, laser printers and photocopiers, but for many years they were the primary means of reproducing documents for limited-run distribution. The duplicator was pioneered by Thomas ...