Computer Fundamentals MCQs

Correct Answer: C. 8 bits Fact Check: 1 byte = 8 bits. This is one of the most repeated basic computing MCQs. A. 2 bits is not correct because it does not match the verified fact: 1 byte = 8 bits. This is one of the most repeated basic computing MCQs. B. 4 bits is not correct because it does not match the verified fact: 1 byte = 8 bits. This is one of the most repeated basic computing MCQs. C. Correct — 8 bits is right because 1 byte = 8 bits. This is one of the most repeated basic computing MCQs. D. 16 bits is not correct because it does not match the verified fact: 1 byte = 8 bits. This is one of the most repeated basic computing MCQs.

Correct Answer: B. Bit Fact Check: A bit is the smallest unit of data. It represents either 0 or 1. A. Byte is not correct because it does not match the verified fact: A bit is the smallest unit of data. It represents either 0 or 1. B. Correct — Bit is right because A bit is the smallest unit of data. It represents either 0 or 1. C. Kilobyte is not correct because it does not match the verified fact: A bit is the smallest unit of data. It represents either 0 or 1. D. Megabyte is not correct because it does not match the verified fact: A bit is the smallest unit of data. It represents either 0 or 1.

Correct Answer: B. Software Fact Check: Software is a set of programs or instructions that tell the computer what to do. A. Hardware is not correct because hardware means the physical parts of a computer, whereas this question requires Software. B. Correct — Software is right because Software is a set of programs or instructions that tell the computer what to do. C. Processor is not correct because it does not match the verified fact: Software is a set of programs or instructions that tell the computer what to do. D. Monitor is not correct because it does not match the verified fact: Software is a set of programs or instructions that tell the computer what to do.

Correct Answer: B. Hardware Fact Check: Hardware means the physical parts of a computer, such as CPU, keyboard, mouse, monitor, and printer. A. Software is not correct because software means programs and instructions used by a computer, whereas this question requires Hardware. B. Correct — Hardware is right because Hardware means the physical parts of a computer, such as CPU, keyboard, mouse, monitor, and printer. C. Firmware is not correct because it does not match the verified fact: Hardware means the physical parts of a computer, such as CPU, keyboard, mouse, monitor, and printer. D. Malware is not correct because it does not match the verified fact: Hardware means the physical parts of a computer, such as CPU, keyboard, mouse, monitor, and printer.

Correct Answer: C. Printer Fact Check: A printer is an output device because it produces hard copy output on paper. A. Mouse is not correct because it does not match the verified fact: A printer is an output device because it produces hard copy output on paper. B. Scanner is not correct because it does not match the verified fact: A printer is an output device because it produces hard copy output on paper. C. Correct — Printer is right because A printer is an output device because it produces hard copy output on paper. D. Keyboard is not correct because it does not match the verified fact: A printer is an output device because it produces hard copy output on paper.

Correct Answer: C. Keyboard Fact Check: A keyboard is an input device because it is used to enter data into the computer. A. Monitor is not correct because it does not match the verified fact: A keyboard is an input device because it is used to enter data into the computer. B. Printer is not correct because it does not match the verified fact: A keyboard is an input device because it is used to enter data into the computer. C. Correct — Keyboard is right because A keyboard is an input device because it is used to enter data into the computer. D. Speaker is not correct because it does not match the verified fact: A keyboard is an input device because it is used to enter data into the computer.

Correct Answer: B. Brain of computer Fact Check: CPU is called the brain of computer because it performs processing and controls all major operations. A. Heart of computer is not correct because it does not match the verified fact: CPU is called the brain of computer because it performs processing and controls all major operations. B. Correct — Brain of computer is right because CPU is called the brain of computer because it performs processing and controls all major operations. C. Memory of computer is not correct because it does not match the verified fact: CPU is called the brain of computer because it performs processing and controls all major operations. D. Screen of computer is not correct because it does not match the verified fact: CPU is called the brain of computer because it performs processing and controls all major operations.

Correct Answer: B. Central Processing Unit Fact Check: CPU stands for Central Processing Unit. It is called the brain of the computer because it controls and processes instructions. A. Central Program Unit is not correct because it is not the accepted expansion; the correct form is Central Processing Unit. B. Correct — Central Processing Unit is right because CPU stands for Central Processing Unit. It is called the brain of the computer because it controls and processes instructions. C. Computer Processing Unit is not correct because it is not the accepted expansion; the correct form is Central Processing Unit. D. Control Processing Unit is not correct because it is not the standard expansion of CPU.

Correct Answer: B. Data Fact Check: A computer takes data as input, processes it according to instructions, and gives useful output called information. A. Water is not correct because it does not match the verified fact: A computer takes data as input, processes it according to instructions, and gives useful output called information. B. Correct — Data is right because A computer takes data as input, processes it according to instructions, and gives useful output called information. C. Air is not correct because it does not match the verified fact: A computer takes data as input, processes it according to instructions, and gives useful output called information. D. Light is not correct because it does not match the verified fact: A computer takes data as input, processes it according to instructions, and gives useful output called information.

Correct Answer: B. Central Processing Unit Fact Check: CPU stands for Central Processing Unit. A. Central Process Unit is not correct because it is an incomplete/incorrect expansion because CPU stands for Central Processing Unit, whereas this question requires Central Processing Unit. B. Correct — Central Processing Unit is right because CPU stands for Central Processing Unit. C. Computer Process Unit is not correct because it is not the standard expansion of CPU. D. Control Processing Unit is not correct because it is not the standard expansion of CPU.