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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
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.
Pick out the odd one.
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 input device.
Which one of the following is the main memory?
What is the function of an ALU?
Write short notes on an impact printer.
Write the significant features of the monitor.
Explain the basic components of a computer with a neat diagram.
Explain the following.
Inkjet Printer
Explain the following.
Multimedia projector
The data is processed in the ______.
What are the two types of keys on the keyboard?
What are the parts of the CPU?
