Understanding Data Communications and Networks - Tapa blanda

This text presents data communications and network fundamentals, and a wide array of specific applications, at a level for Junior CS and CIS majors intending to be information systems professionals. The 2nd edition is updated with new information on state-of-the-art developments supporting the World Wide Web, including expanded and updated coverage of LAN/WAN systems and protocols, and such topics as asynchronous transfer mode (ATM), modems, encryption and network security.