1.2 - Computer Components (Memory) Flashcards
(10 cards)
1
Q
What is memory?
A
What is directly accessible by the processor (unlike storage)
2
Q
What are the 3 main types of memory?
A
RAM, Cache, ROM
3
Q
What differs ROM from RAM and Cache?
A
RAM and Cache are both volatile memory (memory looses its contents when power is lost) whereas ROM keeps its contents when power is lost
4
Q
What is the purpose of RAM?
A
To temporarily hold data and instructions
5
Q
What is the capacity of RAM?
A
4 - 32 GB
6
Q
What is drawback to ROM?
A
It can’t be easily changed (read only memory)
7
Q
What does ROM do?
A
It loads the OS from storage into RAM
8
Q
What is the capacity of ROM?
A
5 - 10 MB
9
Q
What is the main characteristic of cache?
A
Small and fast
10
Q
What does cache do?
A
Holds frequently accessed instructions and data
