1.1 Computer Systems

What is the purpose of the CPU?

• To process all the data and instructions.
• To turn the computer on.
• To create PowerPoint presentations.
• To provide power to the computer.

What does CPU stand for?

• Control Processing Unit
• Central Processing Unit
• Central Power Unit
• Center Power Unit

The Von Neumann architecture is also known as a ‘stored program computer’

• True

• False

What are registers used for?

• To check that students are in school.
• To temporarily hold individual items of data needed by the CPU.

• To make sure that the CPU runs properly.
• To make the CPU faster.

What happens at the Decode step of the fetch-decode-execute cycle?

• The CPU makes sense of the instructions.
• The CPU fetches the information from RAM.
• The instructions are executed.

Which of the following is often referred to as 'main memory'.

• Hard Drive
• USB Drive
• RAM
• ROM

What is one of the functions of the control unit?

• It carries out calculations

• It stores information.

• It does nothing.

• It controls the flow of data.

In addition to the Control Unit, what are the other two CPU components?

• RAM & ROM

• Hard Drive & Motherboard

• The ALU and Cache

Which level of cache is the fastest but has the smallest capacity?

• Level 1
• Level 2
• Level 3
• They all have the same speed and capacity

What is the main function of the boot-up program?

• To load programs that are being used.

• To shut the computer down.

• To check the hardware and load the operating system into RAM.

• To load Microsoft Office.