- PASCAL PROGRAMMING LANGUAGE LIST OF COMMANDS CODE
- PASCAL PROGRAMMING LANGUAGE LIST OF COMMANDS PC
- PASCAL PROGRAMMING LANGUAGE LIST OF COMMANDS SERIES
- PASCAL PROGRAMMING LANGUAGE LIST OF COMMANDS FREE
PASCAL PROGRAMMING LANGUAGE LIST OF COMMANDS SERIES
The first Pascal compiler was designed in Zürich for the CDC 6000 series mainframe computer family. This enables a very simple and coherent syntax where a complete program is syntactically nearly identical to a single procedure or function (except for the heading, which has one of these three keywords). Pascal, like many programming languages of today (but unlike most languages in the C family), allows nested procedure definitions to any level of depth, and also allows most kinds of definitions and declarations inside subroutines (procedures and functions). Other languages that influenced Pascal's development were Simula 67, and Wirth's own ALGOL W. Similar mechanisms are standard in many programming languages today. To make this possible and meaningful, Pascal has a strong typing on all objects, which means that one type of data cannot be converted or interpreted as another without explicit conversions. Important features included for this were records, enumerations, subranges, dynamically allocated variables with associated pointers, and sets. Pascal has its roots in the ALGOL 60 language, but also introduced concepts and mechanisms which (on top of ALGOL's scalars and arrays) enabled programmers to define their own complex (structured) datatypes, and also made it easier to build dynamic and recursive data structures such as lists, trees and graphs. Wirth's intention was to create an efficient language (regarding both compilation speed and generated code) based on structured programming, a recently popularized concept that he promoted in his book Algorithms + Data Structures = Programs. CodeTyphon is a Lazarus distribution with more preinstalled packages and cross compilers.
PASCAL PROGRAMMING LANGUAGE LIST OF COMMANDS FREE
Another cross-platform version called Free Pascal, with the Lazarus IDE, is popular with Linux users since it also offers write once, compile anywhere development.
PASCAL PROGRAMMING LANGUAGE LIST OF COMMANDS CODE
Object Pascal ( Embarcadero Delphi) is still used for developing Windows applications but also has the ability to cross compile the same code to Mac, iOS and Android.
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Apollo Computer used Pascal as the systems programming language for its operating systems beginning in 1980. Knuth was written in WEB, the original literate programming system, based on DEC PDP-10 Pascal, while applications like Total Commander, Skype and Macromedia Captivate were written in Delphi ( Object Pascal). Parts of the original Macintosh operating system were hand-translated into Motorola 68000 assembly language from the Pascal sources. Pascal was the primary high-level language used for development in the Apple Lisa, and in the early years of the Macintosh. Newer Pascal compilers exist which are widely used.
PASCAL PROGRAMMING LANGUAGE LIST OF COMMANDS PC
Variants of Pascal have also frequently been used for everything from research projects to PC games and embedded systems.
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A generation of students used Pascal as an introductory language in undergraduate courses. Initially, Pascal was largely, but not exclusively, intended to teach students structured programming. Pascal, named in honor of the French mathematician and philosopher Blaise Pascal, was developed by Niklaus Wirth.īefore his work on Pascal, Wirth had developed Euler and ALGOL W and later went on to develop the Pascal-like languages Modula-2 and Oberon. Pascal is an imperative and procedural programming language, which Niklaus Wirth designed in 1968–69 and published in 1970, as a small, efficient language intended to encourage good programming practices using structured programming and data structuring.Ī derivative known as Object Pascal designed for object-oriented programming was developed in 1985.