Primary Storage

Question 1

What is primary memory

Answer 1

Very quick memory that is directly accessed by the CPU and includes RAM and ROM

Question 2

What is the purpose of ROM

Answer 2

Non-volatile memory that can only be read not written.

And stores the BIOS(boot up instructions) that loads the OS to take over managing the computer by tellIng it to perform self check up and to set up the computer.

Question 3

What is the purpose of RAM

Answer 3

Volatile memory that stores running programs to be processed by the CPU. It can be read and written and parts of the OS is stored in RAM copied from secondary storage.

Question 4

Why is virtual memory needed

Answer 4

Programs must be stored in RAM to be processed by the CPU.
1)When RAM is full(too many applications opened at once) data is moved to secondary storage, which is used as a external hardware of RAM known to be virtual memory.

2)Data is temporarily stored in virtual memory so that RAM can store new data until space is made in RAM, when data in virtual memory is needed it is moved back to RAM.

3)This is slow as data transfer rates are much slower in secondary storage then RAM. Making the computer slow to respond because of the constant switching.

Question 5

What are two types of primary memory?

Answer 5

RAM / ROM

Question 6

Is RAM volatile or non volatile

Answer 6

Volatile

Question 7

Is ROM volatile or non volatile

Answer 7

Non volatile