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प्रश्न
Explain the following.
Bar code/QR code Reader
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उत्तर
- A Bar code is a pattern printed in lines of different thicknesses.
- The Bar code reader scans the information on the bar codes transmits it to the computer for further processing.
- The system gives fast and error-free entry of information into the computer.
Quick response (QR) code: The QR code is the two-dimension bar code that can be read by a camera and processed to interpret the image.
संबंधित प्रश्न
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Identify the input device.
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Explain the following.
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The data is processed in the ______.
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Give the uses of the right and left buttons of the mouse.
Which one of the following is not important part of computer?
Draw block diagram showing the main components of a computer.
