Memory

Question 1

What is the function of main memory

Answer 1

holds data and programs. directly accessed by the CPU

Question 2

Types of main memory

Answer 2

ROM,RAM and cache

Question 3

what is volatile memory

Answer 3

Losses its contents when power is lost.eg RAM and Cache

Question 4

what is non-volatile

Answer 4

Doesn’t loose its contents when power is lost eg ROM

Question 5

ROM can only be…

Answer 5

read from. This makes it ideal for storing instructions and data that are needed for computers to run.

Question 6

Example of data stored in ROM

Answer 6

BIOS, which runs as soon as the computer is turned on.

Question 7

Reading data on RAM takes the …

Answer 7

same time regardless of where the data is stored.

Question 8

RAM has very…

Answer 8

quick reading and writing time

Question 9

what’s the function of RAM

Answer 9

Temporarily jold data and instructions that CPU is currently using.

Question 10

What is the function of Cache

Answer 10

temporarily hold data and instructions that the processor id likely to re-use