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St Andrews
Definitions and Meanings

Network Topologies and Data Representation

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The smallest unit of data in computing represented by a 1 in binary.
A unit of data containing 8 bits.
A number system that contains two symbols, 0 and 1. Also known as base 2.
A table of data that links a character to a number. This allows the computer system to convert text into binary. Examples are ASCII and Unicode
A method of reducing file sizes, particularly in digital media such as photos, audio and video.
A set of rules for how messages are turned into data packets and sent across networks.
A network where each node is connected to a central switch
The structure, or arrangement, of a network.
bit
byte
binary
character set
compression
protocol
star topology
topology

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