1.2.1 Primary Storage

Question 1

What is primary memory? (1)

Answer 1

Memory directly accessed by the CPU.

Question 2

What are the two types of primary memory? (2)

Answer 2

RAM (1) ROM (1)

Question 3

What is the purpose of ROM? (3)

Answer 3

Stores BIOS (1) Stores boot up instructions (1) Stores data that should not be changed (1)

Question 4

Is ROM volatile or non volatile? (1)

Answer 4

Non volatile (1)

Question 5

What is the purpose of RAM? (2)

Answer 5

Stores currently running programs (1) and data (1)

Question 6

Is RAM volatile or non volatile? (1)

Answer 6

Volatile (1)

Question 7

Why do computers need virtual memory? (2)

Answer 7

When RAM is full (1) secondary storage is used as temporary RAM (1)

Question 8

How does virtual memory work? (4)

Answer 8

When RAM is full (1) data from RAM is moved to secondary storage to make space (1) RAM can then be filled with new data (1) When data in virtual memory is needed it is moved back to RAM (1)