411 REFERENCE · Wikibooks
A-level Computing 2009/AQA/Problem Solving, Programming, Data Representation and Practical Exercise/Definitions
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Local variable declared within subroutines or programming blocks, their local scope means they can only be used within the subroutine or program block they were declared in
Global variable declared at start of program/module, can be used/accessed in every procedure/subroutine
Pixel The smallest addressable part of a bitmap image
Database A persistent, structured list of related items, held on a computer and searchable
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