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Checksum — Edexcel GCSE Computer Science Definition

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Computer Science
Key terms
Checksum

GCSE Computer Science · key term

Checksum

Definition

A value calculated from data and checked at the receiving end to help detect transmission errors.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Computer Science · 1CP2

Specification 4.1.7 · Paper 1

Control information is added, including sequence information, which identifies the original order of the data, and a checksum, which helps detect errors.
Revise: TCP/IP Model

Edexcel Computer Science past papers

Related key terms

Header
IP address
Layer
Packet
Protocol

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Sequence number