This text/CD-ROM package teaches basic tools for the design of digital circuits and digital systems. It can be used for an introductory course in an electrical engineering, computer engineering, or computer science curriculum. Coverage includes binary systems, boolean algebra and logic gates, synchronous sequential logic, register transfer level, digital integrated circuits, and standard graphic symbols. This third edition contains new material on Verilog Hardware Description Language (HDL) and digital design in the Register Transfer Level, and laboratory experiments supplemented with HDL experiments. The CD-ROM contains Verilog HDL source code files for examples and two simulators provided by SynaptiCAD.