2.1 PRIMARY storage (ram, rom)

Question 1

benefits of primary storage

Answer 1

• very quick directly accessed by the cpu
• typically smaller in storage size
• called ‘main memory’
• ram and rom

Question 2

storage is split into two types, what are they?

Answer 2

volatile and non volatile

Question 3

what is volatile storage?

Answer 3

temporary - data is lost when power is turned off

Question 4

what is non volatile storage?

Answer 4

saves the data even when not being powered. data stored long term.

Question 5

explain the type of storage ram is

Answer 5

volatile
primary storage

Question 6

explain the type of storage rom is

Answer 6

non volatile
primary storage
read only

Question 7

why do we need primary storage?

Answer 7

program instructions and data must be copied from the hard drive into RAM: we need it for the speed

Question 8

what is virtual memory?

Answer 8

if there is insufficient space in ram for all the programs the computer runs it can use the HDD as an exetention of RAM

Question 9

what happens when you need to use data stored in virtual memory?

Answer 9

it is moved back to RAM