Computer Fundamentals MCQs

C: Correct because in basic computing, 1 kilobyte is commonly treated as 1024 bytes. A: Wrong because a bit is the smallest binary unit. B: Wrong because a nibble is 4 bits. D: Wrong because a megabyte is much larger than 1024 bytes.

B: Correct because computers process data using binary digits 0 and 1. A: Wrong because decimal is human-friendly base 10. C: Wrong because Roman numerals are not used for digital processing. D: Wrong because Arabic words are language symbols, not machine-level representation.

A: Correct because RAM holds active data and instructions for quick access. B: Wrong because a DVD is optical storage. C: Wrong because a printer is output hardware. D: Wrong because a projector displays output.

B: Correct because Central Processing Unit is the main processor that executes instructions. A: Wrong because it is not the standard expansion of CPU. C: Wrong because it wrongly adds personal and does not describe the processor. D: Wrong because it describes control software, not the hardware processor.

B: Correct because a keyboard is used for typing letters, numbers, and commands. A: Wrong because a monitor displays output. C: Wrong because a printer gives hard-copy output. D: Wrong because a speaker produces sound output.

C: Correct because a printer produces printed output on paper. A: Wrong because a mouse is an input device. B: Wrong because a scanner is an input device. D: Wrong because a keyboard is an input device.

A: Wrong because it is not a standard computing term. B: Correct because CPU means Central Processing Unit, the main processing component of a computer. C: Wrong because it changes the meaning of CPU and is not used technically. D: Wrong because a control program is software, not the CPU.

A: Correct because binary uses only two symbols: 0 and 1. B: Wrong because 2 is not a binary digit. C: Wrong because letters are not binary digit values. D: Wrong because binary does not use 9 or 10 as single digit values.

A: Wrong because an algorithm is not an image. B: Correct because algorithms describe ordered steps for solving problems. C: Wrong because a monitor is hardware. D: Wrong because electricity is energy, not a procedure.

Correct Answer: C. ROM Fact Check: ROM is non-volatile, meaning it keeps data even when power is off. A. RAM is not correct because it does not match the verified fact: ROM is non-volatile, meaning it keeps data even when power is off. B. Cache only is not correct because it does not match the verified fact: ROM is non-volatile, meaning it keeps data even when power is off. C. Correct — ROM is right because ROM is non-volatile, meaning it keeps data even when power is off. D. Register only is not correct because it does not match the verified fact: ROM is non-volatile, meaning it keeps data even when power is off.