Synopsis This books covers the basics of digital electronics. Which offers an approach to analog/digital electronics and basic device physics that provides an answer to the changing, demands on the undergraduate electronics courses. It describes these subjects in the context to modern silicon integrated circuit technology. it also motivates students by offering them many opportunities for early exposure to up-to-date applications. It also discusses the computer analysis and computer aided design (CAD) which are significant factors in electronics. One of the most prevalent electronics. One of the most prevalent electronic circuit simulation programs is Simulation Program with Integrated Circuit Emphasis (SPICE).