Computer Systems Quiz

What is the definition of a computer system?

• A device that only stores data.

• An electronic device that manipulates information or data.

• A device used solely for gaming.

• A machine that only retrieves data.

Answer explanation

The definition of a computer system is an electronic device that manipulates information or data, making the correct choice 'An electronic device that manipulates information or data.'

Which of the following is an example of a computer system?

• Microwave

• Desktop computer

• Washing machine

• Refrigerator

Answer explanation

The correct example of a computer system is a desktop computer, as it is a device designed to perform various tasks using software and hardware components specifically for computing purposes.

What does CPU stand for?

• Central Processing Unit

• Central Programming Unit

• Computer Processing Unit

• Central Performance Unit

Answer explanation

CPU stands for Central Processing Unit, which is responsible for executing instructions and performing calculations in a computer system.

Which of the following is an example of a CPU?

• Intel Core i7

• Samsung Galaxy

• Apple iPhone

• Google Pixel

Answer explanation

The correct example of a CPU is the Intel Core i7, as it is a central processing unit used in computers for executing instructions and tasks.

How is information represented in binary?

• Using three options: 0, 1, and 2

• Using two options: 0 and 1

• Using four options: 0, 1, 2, and 3

• Using five options: 0, 1, 2, 3, and 4

Answer explanation

Information is represented in binary using two options: 0 and 1. Each digit in a binary number can only be 0 or 1, making it a base-2 system.

What is the binary representation of the number 5?

• 100

• 101

• 110

• 111

Answer explanation

The binary representation of the number 5 is 101, which is the second option.

What is binary addition?

• A process of adding decimal numbers

• A process of adding hexadecimal numbers

• A process of adding binary numbers

• A process of adding octal numbers

Answer explanation

Binary addition is the process of adding binary numbers, which are numbers expressed in base-2 form.

Which of the following is an example of binary addition?

• 101 (5) + 010 (2) = 111 (7)

• 101 (5) + 011 (3) = 1000 (8)

• 101 (5) + 001 (1) = 110 (6)

• 101 (5) + 100 (4) = 1001 (9)

Answer explanation

Binary addition of 101 (5) + 010 (2) equals 111 (7), which is the correct choice.

What is the definition of storage devices?

• Hardware used to process data

• Hardware used to store data

• Software used to store data

• Software used to process data

Answer explanation

Storage devices are hardware used to store data, not process it. Therefore, the correct definition is 'Hardware used to store data.'

Which of the following is an example of a storage device?

• Monitor

• Keyboard

• Hard disk drive (HDD)

• Mouse

Answer explanation

The correct choice is the Hard disk drive (HDD) as it is a storage device used to store data on computers.