This second edition has been revised and updated for the computer-user of the late 1990s. It includes all the terms found in manuals for the most up-to-date software packages such as Windows 95, the Microsoft Office collection or the Lotus programs. It also clarifies the jargon of error messages and explains the terms likely to be encountered in connection with upgrading a machine. Entries range from applet to Zmodem, from Explorer to EXCEL.