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## Chapter 10
Programs, units, blocks

A Pascal program consists of modules called units. A unit can be used to group pieces of code together, or to give someone code without giving the sources. Both programs and units consist of code blocks, which are mixtures of statements, procedures, and variable or type declarations.
10.1 Programs
10.2 Units
10.3 Blocks
10.4 Scope
Block scope
Record scope
Class scope
Unit scope
10.5 Libraries

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