Y8 Computing Hardware and Software Lesson 2(CPU) Quiz

What is Software?

• The parts you can touch

• Virtual items

What is Hardware?

• The physical parts of the computer

• The virtual parts of the computer

What is a CPU?

• Central Processing Unit - completes most calculations

• Central presenting Unit - completes most calculations

What is RAM?

• Extra temporary online saving

• Extra temporary memory

What is clock speed?

• Measured in Hz - operations per second. The higher the number the quicker it calculates.

• Measured in Gb - operations per second. The higher the number the quicker it calculates.

What does the number of cores mean?

• The CPU has separate CPU inside, working together

• The amount of saving the ram can do

• How much memory the CPU can store

Which of these are not part of the CPU?

• ALU

• Cache

• Control Unit

• RAM

What does the ALU unit do?

• performs logical and image operations

• performs arithmetic and logic operations

• performs logical and network operations

Which of these relate to Cache?

• Memory attached to CPU

• Stores data that needs to be accessed quickly

• Expensive

• cheap

Which of these is true about cores? (multiple correct answers)

• can work together

• use less than one core with a high clock speed

• tasks can be sent to specific cores

• more cores is always slower than higher clock speed