COBOL Tutorial Class 2 : Constants and Variable

In any programing language the data falls into two categories called constants and variables. Constants are those which cannot be modified during the program execution. Variables are data that can be modified during the program execution. In the hello word program the phrase "Hello world" is a constant. As in constants there is nothing much to learn let us directly jump into variables.

COBOL Tutorial Class 1: Introduction

Well, one more COBOL tutorial !  Already there are ample COBOL tutorial / free PDFs in the internet.  Why one more ? Well I guess I want to create a tutorial for the users who don’t have the time to go through an entire book or a PDF. This tutorial is going to be short and quick. Let me split this across multiple posts. Here is the first post.