Free Computer Fundamentals MCQs with Answers

181. _____ computers are also called personal computers.

• A. Super Computers
• B. Mini Computers
• C. Micro Computers
• D. Mainframe Computers

Explanation: Microcomputers use a microprocessor as their central processing unit and include personal computers. Mainframes, minicomputers and supercomputers are larger computer categories.

182. Which of the following is the largest storage?

• A. Megabyte
• B. Petabyte
• C. Kilobyte
• D. Terabyte
• E. Gigabyte

Explanation: Petabyte is larger than terabyte, gigabyte, megabyte, and kilobyte. In the usual decimal order, storage units increase as KB, MB, GB, TB, then PB.

183. Bit is also called ______________.

• A. Small
• B. Character
• C. Byte
• D. Binary Digit

Explanation: Bit is short for binary digit, and it can hold one of two values, 0 or 1. A byte contains eight bits, so byte and bit are not interchangeable.

184. Components of computer system are?

• A. Hardware
• B. Software
• C. Applications
• D. Both A and B

Explanation: A computer system fundamentally consists of hardware, the physical equipment, and software, the instructions that operate it. Applications are a category of software, so “both A and B” is the inclusive answer.

185. A device through which we enter data in a computer known as ___________?

• A. Storage Device
• B. Internal Device
• C. Prcessing Device
• D. Input Device

Explanation: An input device enters data or commands into a computer, such as a keyboard, mouse, or scanner. Storage and processing devices perform different functions after or around the input stage.

186. Digital computer was invented by?

• A. John Vincent Atanasoff
• B. Steve Jobs
• C. Charless babbage
• D. James watson

Explanation: John Vincent Atanasoff helped build the Atanasoff-Berry Computer, commonly regarded as an early electronic digital computer. Charles Babbage designed an earlier mechanical calculating machine, while the other names are unrelated.

187. In computer, ALU has____________?

• A. 2units
• B. 3units
• C. 4units
• D. 5units

Explanation: The ALU has two fundamental sections: the arithmetic unit performs calculations, while the logic unit performs comparisons and logical operations. These are commonly described as the two units of the ALU.

188. In 1940, first electronic computer was invented by_______?

• A. Clifford Bery
• B. George Boole
• C. Atanasoff and Berry
• D. John V.Atanasoff

Explanation: The first electronic digital computer is generally credited to John Atanasoff and Clifford Berry, whose machine was the Atanasoff-Berry Computer. The option naming both inventors is therefore the best answer, despite the simplified date.

189. Computers that are used in large organizations such as insurance companies and banks, where many people frequently need to use same data, are____?

• A. mainframe computers
• B. super computers
• C. hybrid computers
• D. desktop computers

Explanation: Mainframe computers handle large volumes of data and support many simultaneous users, making them suitable for banks and insurance companies. Supercomputers focus primarily on highly complex calculations rather than routine multi-user business processing.

190. The word Computer used for the first time in____________?

• A. 1613
• B. 1614
• C. 1615
• D. 1616Windows OS

Explanation: The word computer was first used in 1613 by Richard Braithwaite for a person who performs calculations. It originally referred to a human calculator, not an electronic machine.