1.4 CPU, System Performance

Question 1

The CPUs performance relies on

Answer 1

Clock speed
Cache size
Number or cores

Question 2

What’s is clock speed and how does this effect the CPUs performance

Answer 2

The number of instructions executed per second

The higher the clock speed the greater the number of instructions that can be carried out per second

Measures in hertz

Question 3

What are cores and how can they affect the CPUs performance

Answer 3

Each processor has a core in which instructions are executed

Processors can be multi core
(Dual core, quad core, 8 core)

Each core executed instructions independently

Question 4

What is cache and how do this affect CPUs performance

Answer 4

Cache is data storage inside CPU so that’s much faster than RAM

A larger CPU cache gives the CPU faster access to more data it needs to process

Question 5

What is purpose of processor

Answer 5

Brains of a computer system
Processes data
Carries out instructions (executed them)

Question 6

How can more RAM mean a faster or smoother system

Answer 6

The more RAM the more applications or memory intensive applications It can run smoothly making it faster overall

Question 7

What does GPUs stand for

Answer 7

Graphics
Processing
Unit

Question 8

How do GPUs help CPU process images

Answer 8

They are specialise circuits for handling graphics and image processing they relieve the processing load on the CPU freeing it to do other things