introduction

INTRODUCTION

                          Computer is one of the greatest inventions of mankind. Computer plays on important role in our everyday life. In present day every person knows the Computer.

                        Computer is a product of many improvements over a period of time. Now a days computer are used in every field like Education, Science, Engineering, Security, Law, Business, Games, Entertainment and any others field.

HISTORY

                Computer has evolved over a period of time. The development of present day computer can be studied in different generations of computing devices. In each generation, technological improvements changed the way computers operated. The computer became cheaper, smaller, efficient, more powerful and reliable with each generation.

(Before learning about the various generation of computers, Let us learn about some of the early calculating machines that laid the foundation of present day computers)