SSC
COMPUTER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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software
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hardware
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battery
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mobile phone
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Detailed explanation-1: -A BCR (barcode reader) or scanner, also known as a POS (point of sale) scanner is a hardware input device capable of reading a barcode using a laser. It can also load the details of the product or log information about that product into a database.
Detailed explanation-2: -A Barcode reader or Barcode scanner is an electronic input device which is able to scan and decode barcodes. These devices use optical technology such as infrared light.
Detailed explanation-3: -A barcode reader is an automatic input device which is used to scan or ‘read’ the barcode by using a visible red light. The reflected light is translated into digital data that is interpreted by the computer to identify the product and price from the database.