COMPUTER ARCHITECTURE
INPUTOUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Braille keyboards and printers use a system where
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characters are represented by patterns of raised dots that are felt with the persons fingertips
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information is enlarged on a screen
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information is read out via a speaker
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a pointer is moved about on a screen
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Explanation:
Detailed explanation-1: -Louis Braille, who was blinded at the age of three, invented the system in 1824 while a student at the Institution Nationale des Jeunes Aveugles (National Institute for Blind Children), Paris.
Detailed explanation-2: -Braille is used to help you read and write with a vision impairment. You read it from left to right with your fingertips. It is still widely used, even with the introduction of alternative assistive technologies like screen readers, text-to-speech and audiobooks.
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