Unit 3.4 : Memory

Question 1

What is memory?

Answer 1

is the ability to store data using INTEGRATED CIRCUITS. It is also known as PRIMARY storage.

Question 2

What is volatile memory?

Answer 2

an example of which is RAM, retains its data only as long as a power supply is connected.

Question 3

What is primary storage?

Answer 3

primary storage (main memory) is the memory directly accessible by the CPU, used to store data and instructions that are currently in use.
It is usually made up of RAM (volatile) and ROM (non-volatile).

Question 4

What is ROM?

Answer 4

which stands for READ ONLY MEMORY, is non-volatile memory. Typically the BIOS, used to load the operating system into main memory, is stored on the ROM chip.

Question 5

What is RAM?

Answer 5

Holds the operating system running and applications WHILE COMPUTOR IS IN USE. It is volatile so loses its memory when computer is off. can be read and written to by the computer. If insufficient storage uses virtual storage by moving data to/from secondary storage.

Question 6

What is secondary storage?

Answer 6

stores files and programs . non-volatile so does not lose data when turned off .