Memory

Question 1

Main / Primary Memory

Name as many as you can

Answer 1

Ram
Rom
Cache
Registers

Question 2

Secondary storage

Name as many as you can (There are 12)

Answer 2

Cache
Hard disk
Floppy disk
Optical disk
Tape
Magnetic tape
SSD
SD card
Flash drive
Flash memory
Compact Disk (CD)
DVD

Question 3

What is the purpose of primary storage in the FDE cycle?

Answer 3

It is where instructions and data are stored and are fetched to CPU

Where the results of any calculations are stored

Question 4

What is the FDE cycle?

Answer 4

Fetch - Instructions are fetched from memory

Decode - Instructions are decoded so the CPU can execute it

Execute - Instructions are carried out / calculations are made

Question 5

The size of memory is measured in what?

Answer 5

Bits / Bytes

Bits -> Kb -> Mb -> Gb
Bytes -> KB -> MG -> GB

Question 6

Put registers, caches and ram in size order:

Smallest first

Answer 6

1. Registers
2. Caches
3. RAM

Question 7

Put chaches, registers and RAM in speed order:

Fastest first

Answer 7

1. Registers
2. Caches
3. RAM

Question 8

What is the purpose of cache?

Answer 8

Cache stores a copy of recently accessed memory that has been copied from main memory so it can be used quickly

Write through - Update the cache and the main memory at the same time - Slower

Something else - Update just the cache and only replace main memory when the computer needs to free up space in the cache