This new edition of the most comprehensive reference to the terms, definitions and abbreviations associated with data and computer communications contains almost 18,000 entries (approximately 50% more than the previous edition). Covering communications definitions, terms and abbreviations, this reference has become known as an indispensable Communications Bible. New and expanded areas include Internet and Intranet terminology, ATM, LAN, and the latest developments in communications technology. Approximately 1,000 trade names are also included allowing readers to easily identify devices and facilities.