Class 3 computer (Aavartan)

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 Here are the answers categorized by section:



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A. Tick (✔) the correct answers


1. It is a pointing device that has an LED in its body.

✔ b. Mouse



2. Which of the following shows the output?

✔ a. Monitor



3. Which part of the CPU performs calculations and logical operations?

✔ a. ALU



4. Which of the following is a type of general software?

✔ b. MS Word





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B. Fill in the blanks


1. A barcode reader is an input device.



2. The functioning of all the computer parts is managed by the Control Unit in the CPU.



3. System software controls the overall working of a computer.



4. Microsoft Windows is an example of an operating system.





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C. Write T for True and F for False


1. An MICR reader scans the text using a special ink called magnetic ink. – T



2. An OMR is a security identification device. – F



3. Disk Cleanup is an example of utility software. – T



4. An application software controls the overall operations of a computer. – F





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Sure! Here are the short answers for section D:



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D. Answer the following questions (Short Answers)


1. Hardware vs Software

Hardware is the physical part of a computer (e.g., keyboard, monitor).

Software is a set of programs (e.g., MS Word, Windows).



2. Two output devices and functions




Monitor: Displays output.


Printer: Prints output on paper.



3. Operating system

It is system software that manages computer functions.

Examples: Windows, Linux.



4. Utility software

It helps maintain and manage the computer.

Example: Disk Cleanup.





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Let me know if you'd like th

is in a table or worksheet format.


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