VHDL is used to show how the basic building blocks and larger systems are defined in a hardware description language, producing designs that can be implemented with modern CAD tools. This book emphasizes the concepts that must be addressed in an introductory course on logic design, focusing on: Logic functions, gates, and rules of Boolean algebra Circuit synthesis and optimization techniques of representation number and arithmetic circuits Combinational-circuit building blocks, such as multiplexers, decoders , encoders, and converters code Sequential-circuit building blocks, such as flip-flops, registers, and counters synchronous sequential circuit designs use the basic building blocks in designing larger systems It also includes chapters related to advanced topics is important, but more: Design of asynchronous sequential circuit testing logic circuits For students who do not have exposure to basic electronics, but interested to learn some key concepts, there is a chapter that presents the most basic aspects of the implementation of digital electronic circuits. Major changes in the second edition of this book includes new examples to clarify the presentation of the basic concepts of more than 50 new examples of solved problems provided at the end of the chapter NAND and NOR gates now introduced in Chapter 2 a more complete discussion of techniques for minimizing logic functions in Chapter 4 ( including the tabular method), a new chapter explains the CAD flow for synthesis of logic circuits Altera's Quartus II CAD software provided on CD-ROM are three appendices that give tutorials on using Quartus II software