This book presents the subject, in easily comprehensible manner for the students and this book will be more helpful to clear basic knowledge of electronics. This book has been presented in logical sequence, using simple language, and it contains a detail exposition of the fundamentals that are expected from the students. The objective of this book on "Fundamental Electronics" is to present the subject matter in most concise, compact, to the point and lucid manner. This book has been written constantly keeping in mind the requirements of all the students regarding the basic fundamentals of electronics components.