4.2 Computers - Hardware

What is the main function of the CPU?

• To carry out processing of the data.
• To help with playing games.
• To fetch instructions from memory, decode them and execute the instructions.
• To heat up the computer.

What is the job of the control unit?

• It carries out calculations
• It stores information.
• It does nothing.
• It controls the input and output of data to make sure that it gets to the right place.

What are the two other parts of the CPU that you learned?

• 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
• Level 4

What are registers used for?

• To check that students are in school.
• To temporarily hold bits of data needed by the CPU.
• To make sure that the CPU runs properly.
• To make the CPU faster.

What is the main function of the boot program?

• To load programs that are being used.
• To shut the computer down.
• To get the computer up and running and get the operating system loaded.
• To load Microsoft Office.

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.

What does CPU stand for?

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

Which of the following is an example of 'main memory'.

• Hard Drive
• USB Drive
• RAM
• ROM

Which of the following CPU's will have a better better performance:
A: 3 GHz Quad Core CPU
B: 3 GHz Duel Core CPU 

• A
• B