Year 11 - CS Blended Learning - Homework 4

Which of these would be considered an input device?

• microphone
• printer
• speaker
• ram

Which of these would be considered an output device?

• speaker
• CPU
• monitor
• power supply fan

CPU stands for

• Computer Processing Unit
• Central Processing Unit
• Core Processing Unit
• Central Power Unit

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.

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 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 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