1. INTRODUCTION
In this modern age, computers have verified the cause of their existence. They have virtually taken over in every field of today’s fast life. Gone are the days when applications of computers were limited to official use only. Today computers have important place in every household purpose, and mainly internet has taken over whole world. There are various causes due to which computers have their own stand in our life. It provides a very good facility of fast processing, sound and picture. The virtual reality concept has provided very good features to the computer systems. The c
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