Computer System

What is the purpose of a computer?

• To process data and deliver output

• To fetch data and execute output

• To store data and deliver input

• To process input and deliver data

What are the key components of a typical desktop computer?

• Printer and scanner

• Mouse and speaker

• Monitor and keyboard

• Memory and processor

What is the function of the central processing unit (CPU)?

• Fetch, decode, and execute instructions

• Store data and deliver output

• Process input and deliver data

• Fetch data and execute output

What occurs during the fetch cycle of the CPU?

• The CPU decodes the instruction and breaks it down

• The CPU inspects the instruction and works out what needs to be done

• The CPU fetches the next instruction from the main memory

• The CPU carries out the instruction

What is the clock speed of a modern CPU measured in?

• Gigahertz

• Megabytes

• Terabytes

• Hertz

How many times does the fetch-execute cycle occur per second on a modern CPU?

• Thousands of times

• Hundreds of times

• Millions of times

• Billions of times

What is the main memory of a computer typically known as?

• CPU

• ROM

• GPU

• RAM

What is the first stage of the fetch-execute cycle?

• Fetch

• Decode

• Execute

• Inspect

What does the CPU do during the execute stage of the fetch-execute cycle?

• Inspect the instruction

• Decode the instruction

• Fetch the next instruction

• Carry out the instruction

What is the purpose of a computer program?

• To store data and deliver output

• To fetch data and execute output

• To provide a set of instructions for the computer to follow

• To process input and deliver data