Pascal programming language : part 01


Pascal programming language


Niklaus Wirth created Pascal, a high-level programming language, in the late 1960s and it was first released in 1970. Blaise Pascal, a French mathematician and philosopher, inspired its name. Pascal was created as a teaching tool to promote organized programming and best practices in programming. Here is a summary of its main attributes and applications:

Important Pascal Features

Robust Coding: Pascal upholds stringent type checking, which reduces errors and strengthens the code.
Structured Programming: It makes code easier to read and maintain by supporting structured programming features like loops, conditionals, and functions/procedures.

  • Readable Syntax: The language's architecture prioritizes readability, making it simpler for novice programmers to pick up and for seasoned programmers to review.
  • Rich Data kinds: Pascal can handle a wide range of data kinds, such as arrays, records, files, sets, scalar types (integer, real, and char), and enumerated types. 
  • Pascal's essential building elements, procedures and functions, enable modular programming and code reuse.
  • Compiled Language: Pascal code is efficiently executed when it is compiled to machine code.

As an illustration Code

Here is a basic Pascal program example that determines a number's factorial: 



Uses of Pascal

  • Education: The main purpose of Pascal's use was as a teaching tool for coding best practices and programming ideas. In academic settings, it gained popularity in the 1980s and 1990s.
  • Software Development: Pascal has been used to create software applications, albeit less frequently these days. This was especially true in the early years of personal computers.
  • Influence on Other Languages: Pascal indirectly influenced languages like Delphi (Object Pascal) and Python, and it had a direct influence on many other programming languages, including Ada and Modula-2.

Evolution and Legacy

Over time, Pascal changed, leading to the creation of numerous extensions and variants:

  • Turbo Pascal was an integrated development environment (IDE) and compiler created by Borland to increase the accessibility and power of Pascal for software development.
  • An addition to Pascal that facilitates object-oriented programming is called Object Pascal. It served as the foundation for Borland Delphi, which brought together Object Pascal with a potent IDE for creating Windows applications.
Even if Pascal is no longer as popular, its legacy endures thanks to its contributions to the creation of computer languages and its impact on the teaching of programming. 




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