Presents the techniques of interfacing microprocessors and digital systems to external devices. Addresses analog subsystems and software development as important considerations in interfacing, and uniquely treats the interface between digital electronic devices at all levels of scale. Covers interfacing inside and outside VLSI devices, as well as to peripherals of personal computers. Detailed design examples and numerous figures illustrate important concepts throughout the book. Specific topics covered include IBM PC and Intel 80386 microprocessor interfacing, interfacing automation protocol (MAP), local area networks (LAN), and software interfacing methods using the C language and PC/M86.