1.3.1 Capacity

Question 1

Capacity

Answer 1

The capacity of a device is how much data it can store. It is important to know the units of capacity so that we can compare the capacity of different devices.

Question 2

The bit

Answer 2

The smallest unit of data that we can store is called a binary digit, or a bit for short.
The value of a bit can be either a 0 or a 1.

Question 3

Grouping bits

Answer 3

Because a bit is so small, we do not usually use it to measure data.
Instead, we group bits into larger groups such as:
Nibble (4 bits).
Byte (8 bits).

Question 4

Data units

Answer 4

Kilobyte (KB) (1000 bytes).
Megabyte (MB) (1000 KB).
Gigabyte (GB) (1000 MB).
Terabyte (TB) (1000 GB).
Petabyte (1,000 TB).

Question 5

Calculating Capacity Requirements

Answer 5

. How to convert between units
. Size of data being stored
. Available capacity