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A braille terminal is a computer input device that follows the Braille system of writing for the blind. With a pure braille terminal, input is performed by two sets of three keys plus a space bar (as in the Perkins Brailler ), while output is via a Refreshable Braille Display consisting of a row of electromechanical Character Cells , each of which can raise or lower a combination of six round-tipped pins. Other variants exist that use a conventional QWERTY keyboard for input and braille pins for output, as well as input-only and output-only devices. EXTERNAL LINKS SEE ALSO |
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