Memory

Question 1

RAM

Answer 1

Random Access Memory is used as main memory in a computer
Can be read and written into (volatile)

Question 2

Volatile memory

Answer 2

Temporary memory
Data wiped when power is lost

Question 3

Non - volatile Memory

Answer 3

Permanent memory
keeps content even when there isn’t power

Question 4

What is RAM used for

Answer 4

where data, files and programs are stored when being used
when a computer boots up the operating system is copied into RAM from secondary storage
RAM is slower than CPU cache, but faster than secondary storage

Question 5

Virtual memory

Answer 5

when part of secondary storage is used as an extension of RAM when RAM is full
RAM moves data that hasn’t been recently used into virtual memory
If the CPU wants to read data from virtual Memory, it needs to be swapped out into RAM (time consuming)

Question 6

ROM

Answer 6

Read - only memory
Can only be read, not written onto (non -volatile)
Stores BIOS -> instructions needed to boot computer up