IGCSE ICT Chapter 1 Quiz

Which of the following is an example of input hardware?

• Monitor

• Mouse

• Printer

• Speaker

A scanner is an output device.

• True

• False

The ___________ is responsible for executing instructions in a computer system.

Answer explanation

The CPU, or Central Processing Unit, is the primary component responsible for executing instructions in a computer system, making it the correct answer to the question.

Name two output devices.

What is the main function of the Central Processing Unit (CPU)?

• Store data

• Process instructions

• Display images

• Provide internet connection

Answer explanation

The main function of the CPU is to process instructions. It executes commands from programs, making it the core component that drives the computer's operations, unlike the other options which serve different purposes.

What is the difference between RAM and ROM?

Answer explanation

RAM (Random Access Memory) is volatile memory used for temporary data storage while a device is on, allowing quick read/write access. ROM (Read-Only Memory) is non-volatile, storing permanent data that is not lost when the power is off.

__________ is the part of the computer system responsible for storing data temporarily while the computer is running.

ROM is a type of volatile memory.

• True

• False

Answer explanation

ROM (Read-Only Memory) is a type of non-volatile memory, meaning it retains data even when the power is off. Therefore, the statement that ROM is a type of volatile memory is false.

Which of the following is an example of secondary storage?

• RAM

• Hard Disk Drive

• CPU

• ROM

Explain the role of the motherboard in a computer system.

Answer explanation

The motherboard is the main circuit board in a computer, connecting the CPU, memory, and other components. It facilitates communication between hardware, providing power and data pathways essential for system functionality.