This new edition of the Dictionary of Computing has been extensively revised by a team of computer specialists to incorporate the developments of the last five years. There are now over 6,000 entries--2,000 more than in the third edition--and a comprehensive cross-referencing system. The wide range of topics covered includes computer applications in industry, the office, science, education, and the home; the means of achieving these applications--the hardware, software, computer organization, telecommunictions, and user interaction; security, safety, and legal issues; underlying concepts and theories in computing and associated fields; and major computer manufacturers and organizations. Special emphasis has been placed on the terms widely used in relation to personal computers and computer networks. This fourth edition will prove invaluable to students and teachers of computing, and everyone who uses computers in the home, lab, or business.