1.1.1 The structure and function of the processor

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 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.

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 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

What is the program counters job?

• To count the programs
• It contains the memory address of the next instruction to be loaded
• It stores instructions
• It carries out the calculations

Which of the following is a job of the control unit?

• To start up the computer
• To manage the fetch decode execute cycle
• To create presentations
• To carry out calcul

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

• Hard Drive
• USB Drive
• RAM
• ROM