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प्रश्न
Explain the following.
Bar code/QR code Reader
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
How does a computer work?
Fill in the blank to complete the statement. Justify the statement.
While working with a computer we can read the information stored in its memory and perform other actions in ______ memory.
Explain in detail above the applications of computer.
Name the parts of a computer.
Bring out any two differences between input and output devices.
Identify the output device.
Identify the input device.
Which one of the following is used in ATM machines?
Which one of the following is the main memory?
What is the function of memory?
Differentiate Input and output units.
Distinguish primary and secondary memory.
Differentiate optical and Laser mouse.
The ______ is used to move the pointer on a computer screen.
The page on the monitor can be moved up and down using the ______.
The output unit converts, command received by the computer in the form of ______.
The Computer system which has ______ monitor emits less heat.
Name of types of monitors.
