COMPUTER HARDWARE
OUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Chip Reader
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RFID Reader
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Either A or B
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None of the above
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Detailed explanation-1: -Direct data entry devices are specific purpose devices designed to automate or speed up the entry of data in to the system by minimising human data entry. They have a wide range of uses including in education, retail and in business.
Detailed explanation-2: -Direct devices have no intermediary; the movement of the body equals the input to the machine. Examples of direct devices are touch screens, light pens, and voice recognition systems.
Detailed explanation-3: -Source data entry devices are used for audio input, video input and to enter the source document directly to the computer. Source data entry devices do not require data to be typed-in, keyed-in or pointed to a particular location.
Detailed explanation-4: -Very fast method of inputting data as no user has to manually enter results. More accurate than OCR • Less chance of errors • Forms have to be completed correctly to avoid manual checks which would waste time. OMR is able to read marks written in pen or pencil.