New edition of a text that provides coverage of micro, mini, and mainframe peripherals. The authors provide descriptions, methods of operation, and future trends, as well as information on installation, maintenance, troubleshooting, and repair. Some of the devices covered include keyboards, drives, scanners, modems, LANs, speech synthesis, speech recognition, and software. Appends information on the RS-232C interface, the Centronics interface, viruses, and controlling static. Annotation c. by Book News, Inc., Portland, Or.