Memory And Storage

Question 1

What is RAM?

Answer 1

Main memory in the computer and is volatile

Question 2

What is ROM?

Answer 2

Stores BIOS instructions and is non volatile

Question 3

Define volatile

Answer 3

Volatile memory loses data when power is turned off

Question 4

What is virtual memory?

Answer 4

When RAM is full, data is moved from RAM to virtual memory in secondary storage

Question 5

What is primary storage?

Answer 5

Memory directly accessed by the cpu e.g. RAM,ROM

Question 6

What is secondary storage?

Answer 6

Non volatile storage used when RAM is full

Question 7

Advantages of solid state storage

Answer 7

Has no moving parts
Fast read/write speeds

Question 8

Advantages of optical storage

Answer 8

Very cheap per GB
Very portable

Question 9

Advantages of magnetic storage

Answer 9

Large storage capacity
Low cost per GB

Question 10

Name 2 examples of solid state storage

Answer 10

USB stick
SD card

Question 11

Name 2 examples of optical storage

Answer 11

CDs
DVDs

Question 12

Name 2 examples of magnetic storage

Answer 12

Hard drives
Magnetic tape

Question 13

How much is a nibble?

Answer 13

4 bits

Question 14

How much is a byte?

Answer 14

8 bits

Question 15

How much is a kilobyte?

Answer 15

1000 bytes

Question 16

How much is a megabyte?

Answer 16

1000 kilobytes

Question 17

How much is a gigabyte?

Answer 17

1000 megabytes

Question 18

How much is a terabyte?

Answer 18

1000 gigabytes

Question 19

How much is a petabyte?

Answer 19

1000 terabytes