Computer Fundamentals & Hardware
JKSSB Panchayat Account Assistant · Knowledge of Computer Applications · 21 practice questions with answers and explanations: 8 Easy, 8 Medium, 5 Hard.
Sample questions
Sample Easy question 1
Which part of the computer is often called its 'brain'?
- Central Processing Unit (CPU)
- Monitor, which displays the output of the programs
- Hard disk, which stores the data permanently
- Keyboard, which is used to enter data
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Answer: A. The CPU processes instructions and is often referred to as the computer's brain.
Sample Medium question 2
A device that converts digital signals from a computer into analog signals for transmission over telephone lines (and back) is called a:
- Router
- Switch
- Modem
- Scanner
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Answer: C. A modem (modulator-demodulator) converts digital signals to analog for transmission and back to digital at the receiving end.
Sample Hard question 3
Integrated circuits (ICs) were the main technology of which generation of computers?
- Third
- Second
- Fourth
- First
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Answer: A. First: vacuum tubes; second: transistors; third: integrated circuits; fourth: microprocessors (VLSI).