What is a Programming Language ?

The operations of a computer are controlled by a set of instructions ( called a computer program ). These instructions are written to tell the computer :

1. What operations to perform 
2. Where to locate to data
3. How to present results
4. When to make certain decisions 

The communication between two parties, whether they are machines or human beings, always needs a common language terminology. The language used in the communication of computer instruction is known as " programming language ". The computer has its own language and any communication with the computer must be in its language or translated into its language.

   Three levels of programming languages are available. They are :

1. Machine languages (low level languages)
2. Assembly (or symbolic) languages
3. Procedure oriented languages (high level languages) 

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