16 - Memory and Storage

Question 1

What does the main memory determine ?

Answer 1

– How many programs can be executed at at time

– How much data can be available to a program

Question 2

What is the RAM divided into ?

Answer 2

Words.

Question 3

How many bits does a word have usually?

Answer 3

32 or 64 bits.

Question 4

Why is RAM called ‘random’ access memory.

Answer 4

Because any word can be randomly touched without having accessed any of the preceding words.

Question 5

Give the two basic types of RAM ?

Answer 5

• Dynamic RAM (DRAM), slower, cheaper
• Static RAM (SRAM), faster, more expensive

But both are volatile !