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Introduction to computers
6 Class 9 Computer Science questions with answers and explanations.
Printable worksheet with answer key
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A computer takes data, processes it and gives:
- 1 Information
- 2 Only electricity
- 3 Only sound
- 4 Only paper
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Correct answer: Information
Input data is processed to produce useful information as output.
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Which of these is an input device?
- 1 Keyboard
- 2 Printer
- 3 Speaker
- 4 Monitor
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Which of these is an output device?
- 1 Printer
- 2 Microphone
- 3 Mouse
- 4 Scanner
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The brain of the computer is the:
- 1 CPU
- 2 Hard disk
- 3 Monitor
- 4 Mouse
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Correct answer: CPU
The CPU carries out instructions and controls the other parts.
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One byte is made up of:
- 1 8 bits
- 2 2 bits
- 3 4 bits
- 4 16 bits
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Which generation of computers used integrated circuits?
- 1 None
- 2 First
- 3 Third
- 4 Second
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Correct answer: Third
Third generation computers used integrated circuits.