ICT IGCSE Computer Systems Quiz

What is the role of the CPU in a computer system?

• It stores data permanently.

• It is the 'brain' of the computer.

• It connects input and output devices.

• It provides power to the computer.

What does RAM stand for?

• Read Access Memory

• Random Access Memory

• Read And Memory

• Rapid Access Memory

Which of the following is a characteristic of ROM?

• It can be changed easily.

• It holds bootup instructions.

• It is volatile memory.

• It is the fastest type of memory.

What is the main difference between RAM and ROM?

• RAM is used for temporary storage, while ROM is for permanent storage.

• RAM is non-volatile, while ROM is volatile.

• RAM is faster than ROM.

• ROM can be easily modified, while RAM cannot.

What is the purpose of Cache memory?

• To store data permanently.

• To hold commonly used data for quick access.

• To process data.

• To connect input and output devices.

Which of the following is an input device?

• Printer

• Monitor

• Barcode reader

• Speaker

What type of storage is known as secondary storage?

• Hard drive

• CPU

• RAM

• Cache

What happens to data in RAM when the computer is turned off?

• Data is backed up automatically.

• Data is saved permanently.

• Data is lost.

• Data is transferred to ROM.

Which of the following statements is true about backing storage?

• It is non-volatile.

• It cannot be written to.

• It is used for temporary storage.

• It is volatile.

What is the speed of a CPU measured in?

• Megabytes

• Gigahertz

• Terabytes

• Kilohertz