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Pascal is a general-purpose, high-level language that was originally developed for teaching programming as a systematic discipline and to develop reliable and efficient programs.
Pascal is an Algol-based language and includes many constructs of Algol and Algol 60 is a subset of Pascal. Pascal offers quite a few data types and programming structures, making it is easy to understand and maintain Pascal programs.
Pascal is widely used in the teaching and academics arena for a few reasons:
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Easy to learn.
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A structured language.
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Produces clear, efficient, and reliable programs.
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Can be compiled on a variety of computer platforms
Pascals features:
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Pascal is a strongly typed language.
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Offers extensive error checking.
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Provides several data types like arrays, records, files, and sets.
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Provides a variety of programming structures.
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Supports structured programming through functions and procedures.
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Supports object-oriented programming.
So why use Pascal?
It allows programmers to define complex structured data types, build dynamic and recursive data structures like lists, hierarchies, search options, calculations, or graphs.