This popular introductory text on digital design focuses on presenting the funda-mental concepts and the basic tools used in the design of digital circuits and systems. The main revision in this third edition is the introduction to verilog hardware description language (hdl) as a new tool for logic simulation and synthesis of digital circuits. The verilog hdl presentation is at a suitable level for students who are learning digital circuits for the first time. The hdl material is covered in nine separate sections interspersed throughout the book. The companion cd provides the verilog hdl source code files and two types of simulator software-one to enable students to simulate and verify the solutions of hdl problems in the book and the other to simulate and analyze the circuits designed in the laboratory. - from Amzon