Table of Contents

Introduction

Basics of Programming

Variables

Input and Output

Boolean Expressions and Branching

Loops

Functions and Procedures

Files

Arrays

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Beginner Programming with Pascal

Chapter 1.

 

INTRODUCTION

 

About this tutorial

This tutorial will teach beginners how to write their own programs.

To take advantage of this tutorial, you must have several skills. First, you must have a basic knowledge of algebra. Second, you must know how to use your computer, and be able to use a text editor or word processor. If you have both these skills you will be able to complete this tutorial without any problems.

 

What Is a program?

Although they may not seem like it, computers are relatively dumb machines. They require a set of very detailed instructions to perform even the simplest tasks. A program is a set of instructions that tells the computer exactly what to do. Programs are also called "Software." An example of a program is the web browser that you're using to view this page.

 

Programming Languages

Programs are written in programming languages. A programming language is somewhat like a spoken language. It has a set of words that can be put together to form statements. These statements tell the computer what to do. We will be using a language called Pascal. The difference between a spoken language and a programming language is that a programming language has fewer words in it and is much easier to learn.

 

History of Pascal

Pascal was invented in the 1960's by a computer science professor for the purpose of teaching programming. Pascal was named after the French mathematician Blaise Pascal. Over the years, Pascal has gained popularity with both students and professional programmers alike. Compilers: In order to run a program written in Pascal, the program must be COMPILED. A program called a COMPILER translates the Pascal SOURCE CODE into an EXECUTABLE. The executable is written in MACHINE LANGUAGE. There are several different Pascal compilers. Each compiler translates Pascal source code differently. This tutorial will focus on the most popular version of Pascal called Turbo Pascal. The Turbo Pascal compiler is made by Borland International. Click here to go to Borland's site

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