# Computer Science Revision

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Bit
The smallest unit of data that can be stored by a computer, one binary digit value.
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Byte
A 'Byte' contains 8 bits, so 8 binary digits e.g:11101001
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Nibble
A group of four bits, two nibbles make a byte.
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Kilobyte
A kilobyte is a unit of storage capacity. 1,000 bytes= 1 kilobyte.
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Megabyte
A megabyte is a unit of storage capacity. 1 million bytes or 1,000 kilobytes = 1 megabyte.
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Gigabyte
A gigabyte is a unit of storage capacity. 1024 megabytes = 1 Gigabyte
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Terabyte
A terabyte is a unit of storage capacity. 1024 gigabytes/ 1 million megabytes = 1 Terabyte
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## Other cards in this set

### Card 2

#### Front

A 'Byte' contains 8 bits, so 8 binary digits e.g:11101001

Byte

### Card 3

#### Front

A group of four bits, two nibbles make a byte.

### Card 4

#### Front

A kilobyte is a unit of storage capacity. 1,000 bytes= 1 kilobyte.

### Card 5

#### Front

A megabyte is a unit of storage capacity. 1 million bytes or 1,000 kilobytes = 1 megabyte.