Pascal Programming Session 1
Download as PPT, PDF•9 likes•6,411 views
This document provides an introduction to Pascal programming including: - A brief history of Pascal and its development in the 1970s. - An overview of getting started with an IDE/compiler like Turbo Pascal and the basic structure of a Pascal program. - Descriptions of common Pascal concepts like identifiers, data types, and input/output.
![Identifiers Must begin with a letter from the English alphabet. Can be followed by alphanumeric characters (alphabetic characters and numerals) and possibly the underscore (_). May not contain certain special characters, many of which have special meanings in Pascal. ~ ! @ # $ % ^ & * ( ) + ` - = { } [ ] : " ; ' < > ? , . / |](https://image.slidesharecdn.com/pascal-programming-session-1-1229313206079255-1/85/Pascal-Programming-Session-1-11-320.jpg)
Pascal Programming Session 1
- 1. Pascal Programming http://ashesh.ramjeeawon.info Management Student/ Freelance Developer University of Mauritius Module Pre-Requisites: Problem-Solving Techniques Session 1: Pascal Fundamentals
- 2. Today’s Session Intro to Pascal History of Pascal Getting the tools (IDE/Compiler) The basic structure of a Pascal Program Identifiers Data Types Input and Output
- 3. Intro to Pascal Pascal is a general-purpose, high-level programming language Derived from Algol-60 Specifically designed to encourage the use of Structured Programming
- 4. Intro to Pascal Pascal was named in honour of Blaise Pascal (1623 – 1662) Brilliant French Scientist and Mathematician Invented the word’s first calculating machine (Pascaline)
- 5. History of Pascal Developed in the early 1970s by Niklaus Wirth at The Technical University in Zurich, Switzerland
- 6. History of Pascal In 1983, Borland International began marketing of an inexpensive compiler called Turbo Pascal.
- 8. Getting the tools Turbo Pascal for Windows Getting hands dirty with the IDE Installing the Turbo Pascal Code writing aids Compiling Debugging Saving source code - .pas format CVS
- 9. The basic structure of a Pascal Program PROGRAM ProgramName ( FileList ) ; CONST (* Constant declarations *) TYPE (* Type declarations *) VAR (* Variable declarations *) (* Subprogram definitions *) BEGIN (* Executable statements *) END.
- 10. Exercise Time Open your IDE Create a complete “dummy” program Then save it on your desktop as Alpha.pas Note: No compilation is required Aim 1: to get hands dirty with the IDE Aim 2: understand the structure of a Pascal Program
- 11. Identifiers Must begin with a letter from the English alphabet. Can be followed by alphanumeric characters (alphabetic characters and numerals) and possibly the underscore (_). May not contain certain special characters, many of which have special meanings in Pascal. ~ ! @ # $ % ^ & * ( ) + ` - = { } [ ] : " ; ' < > ? , . / |
- 12. Identifiers
- 13. Pascal is not case sensitive! Turbo Pascal allows you to write names with upper and lowercase letters. PART_NUMBER part_number PaRt_NumBer Part_Number Pascal would consider the above identifiers as the same.
- 14. Memory storage
- 15. Pascal Data Types The basic data types in Pascal include: integer real char Boolean
- 16. Pascal Data Types More: http://www.geocities.com/hotdogcom/ptutor/chap03.html
- 17. Variable declaration var IdentifierList1 : DataType1 ; IdentifierList2 : DataType2 ; IdentifierList3 : DataType3 ; ... var age, year, grade : integer; circumference : real; LetterGrade : char; DidYouFail : Boolean;
- 18. Input and Output Input from keyboard Readln(var); Output to screen Writeln(‘Hello World!’);
- 19. The End – Thank you for your kind attention References: http://taoyue.com/tutorials/pascal/contents.html B. Gottfried, Programming with Pascal, 2 nd Edition, McGrawHill
- 20. http://ashesh.ramjeeawon.info Blog: http:// asheshr.wordpress.com Management Student/ Freelance Developer University of Mauritius BCS Student Member