Memory

Question 1

How can the amount of RAM affect a CPUs speed

Answer 1

More RAM can affect a CPUs speed as there is no need for the use of slow virtual memory

Question 2

Describe the need for the ROM

Answer 2

ROM is programmed during the computer manufacturing and contains the boot program.
It is non-volatile.

Question 3

Name four differences between RAM and ROM

Answer 3

Volatile / non-volatile
Changed /permanent
Operating system /boot program
Large / small

Question 4

Explain the need for virtual memory

Answer 4

Virtual memory is needed when the computer does not have enough RAM to hold all the data and programs required .
It is part of the harder every used as an extension to RAM

Question 5

Describe cache memory

Answer 5

Cache memory is part of the CPU. It is used to store intructions that the CPU is likely to reuse.

Question 6

describe flash memory

Answer 6

flash memory is a type of ROM that can be rewritten . It is used for storing and transferring data

Question 7

How are changes in memory technologies leading to new innovative computer design

Answer 7

Memory chips are becoming more compact so we can have smaller computing devices with larger capacities
They are also more power efficient meaning batteries can be smaller and lighter
The cost has also fallen so larger amounts of RAM are more affordable

Question 8

What is the purpose of RAM

Answer 8

RAM is used to store programs applications and data.
It is volatile so if the computer loses power all data stored would be lost.
It is a fast temporary type of storage.
It contains the operating system and can be access and changed