Computer Science: CPU

What does CPU mean?

• Computer Processing Unit

• Central Processing Unit

• Control Processing Unit

• Centre Processing 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 cache memory?

• A very large, temporary memory
• A very small but expensive memory
• It is used to store data and programs permanently
• It is a type of payment

The CPU fetches instructions from.... and executes those instructions.

• Memory

• ALU

• ROM

• Input Device

The ALU is found inside the CPU True or False?

• True

• False

What does volatile mean for a computers memory

• Data and instructions remain stored even when the computer is switched off

• Data and instructions may cause the computer to crash

• Data and instructions are lost when the computer is switched off

Which of these scenarios is NOT the result of overclocking?

• The computer will end up displaying the incorrect time and date

• Processes might not be completed before the next instruction is carried out

• The CPU could overheat

What is 'cache'?

• It stores program operations and data while a program is being executed

• It executes programs using the fetch-decode-execute cycle

• It is a small amount of memory which is a part of the CPU

What is an algorithm?

• A set of step-by-step instructions

• Software that analyses data

• A hardware device that stores data