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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
Pick out the odd one.
Explain in detail above the applications of computer.
Which one of the following is an input device?
Bring out any two differences between input and output devices.
Name the volatile memory.
Identify the input device.
______ output device is used for printing building plans.
What are the components of a CPU?
What is the function of an ALU?
What is the function of memory?
Distinguish primary and secondary memory.
Explain the basic components of a computer with a neat diagram.
Explain the following.
Inkjet Printer
Explain the following.
Multimedia projector
The ______ is used to move the pointer on a computer screen.
The data is processed in the ______.
Name of types of monitors.
Which one of the following is not important part of computer?
Draw block diagram showing the main components of a computer.
