This course in microcomputer hardware is one of 16 courses in the Energy Technology Series developed for an Energy Conservation-and-Use Technology curriculum. Intended for use in two-year postsecondary technical institutions to prepare technicians for employment, the courses are also useful in industry for updating employees in company-sponsored training programs. Comprised of seven modules, the course surveys integrated circuit logic, common electrical and logical digital interfacing techniques, techniques for getting digital and analog data into and out of microcomputers, applications of these techniques to actual control problems, data communication ideas, and microcomputer troubleshooting techniques. Written by a technical expert and approved by industry representatives, each module contains the following elements: introduction, prerequisites, objectives, subject matter, exercises, laboratory materials laboratory procedures (experiment section for hands-on portion), data tables (included in most basic courses to help students learn to collect or organize data), references, and glossary. Module titles are Digital Components, Semi-Conductor Logic Families, Input/Output Devices and Techniques, Analog/Digital Conversion, Data Communication, Bus Systems, and Troubleshooting Microcomputer Components. (YLB)