I have tried to write about history of Electronics. The present book is created in different ways with photos, graphics and writing text. I have completed the work with delightful assistance and encouragement from many people. I have tried to give my best of best to you. Present book is for education purpose and also for all those readers, who are interested in history of Electronics. Till no any book is available on the history of Electronics in this way. In this book At the starting a flow chart is given which shows how Electronics history developed.