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Types and Components of Computer Systems

Jess Peason

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Verification

Description

GSCE ICT (Topic one: Data) Mind Map on Verification, created by s.guyomard on 08/09/2013.

Mind Map by s.guyomard, updated more than 1 year ago

	Created by s.guyomard almost 12 years ago

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Resource summary

Verification

Visual check
1. Carefully reading what has been typed
2. Checking against document used as source
3. Ensures no typing errors
Double entry of data
1. Data is typed twice
2. Accepted for processing if both versions are the same
Parity check
1. Used when data is transferred using networks
2. Checks to see if data is corrupted
3. If it is, data is re-sent

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