In recent years Basic Electronics Engineering are being used extensively in computers, microprocessor and very large scale integration (VLSI) design and digital signal processing research and many other things. This rapid progress in Electronics Engineering has created an increasing demand for trained Electronics Engineering personnel. This book is intended for the undergraduate and postgraduate students specializing in Electronics Engineering. It will also serve as reference material for engineers employed in industry. The fundamental concepts and principles behind electronics engineering are explained in a simple, easy- to- understand manner. Each chapter contains a large number of solved example or problem which will help the students in problem solving and designing of Electronics system. This text book is organized into thirteen chapters. Chapter 0: Famous Scientists and Inventors Who Shaped Electronics EngineeringChapter1: Introduction to Electronics, Current and Voltage Sources and Semiconductor Physics Chapter 2: Semiconductor Diode and its ApplicationsChapter 3: Bipolar Junction Transistor (BJT), Transistor Biasing and Stabilization of Operating PointChapter 4: Applications of BJTsChapter 5: Field Effect Transistor (FET) & Special Diodes and Its ApplicationsChapter 6: Electronics Oscillators & Basics of SCR & UJTChapter 7: Number Systems and Boolean AlgebraChapter 8: Combinational CircuitsChapter 9 : Sequential CircuitsChapter 10: Digital Logic FamiliesChapter 11: Electronics Instruments & MeasurementsChapter 12: Basics & Applications of Communication SystemChapter 13: Basics & Applications of Operational Amplifier The book Electronics Engineering is written to cater to the needs of the undergraduate courses in the discipline of Electronics & Communication Engineering, Computer Science Engineering, Information Technology, Electronics & Instrumentation Engineering, Electrical & Electronics Engineering and postgraduate students specializing in Electronics. It will also serve as reference material for engineers employed in industry. The fundamental concepts and principles behind digital logic designs are explained in a simple, easy- to- understand manner. The last Chapter gives the possible experiments of digital logic design that can be done by students of B.E./B.Tech level.Salient Features•Detailed coverage of Electronics system, Instrumentations, Communication, sequential logic circuits, combinational logic circuits, Operational Amplifier & Applications of BJT and Diode.•Comprehensive chapter on digital logic families, Electronics Measurement, Feedback and Oscillators.•Each chapter contains a large number of solved example or objective type’s problem which will help the students in problem solving and designing of digital system. •Clear perception of the various problems with a large number of neat, well drawn and illustrative diagrams. •Simple Language, easy- to- understand manner. I do hope that the text book in the present form will meet the requirement of the students doing graduation in Electronics & Communication Engineering, Computer Science Engineering, Information Technology, Electronics & Instrumentation Engineering and Electrical & Electronics Engineering. I shall appreciate any suggestions from students and faculty members alike so that we can strive to make the text book more useful in the edition to come.