Business data communications :
Serwatka, Judy A.
Business data communications : introductory concepts and techniques/ Judy A Serwatka, Thomas J Cashman, Gary B Shelly. - 4th ed. - London : Course Technology, 2004. - 1 volume (various pagings) : color illustrations; 28 cm.
Includes index.
Data transmission systems.
Business enterprises--Communication systems.
Business enterprises--Computer networks.
HD30.335 / SER 2004
Business data communications : introductory concepts and techniques/ Judy A Serwatka, Thomas J Cashman, Gary B Shelly. - 4th ed. - London : Course Technology, 2004. - 1 volume (various pagings) : color illustrations; 28 cm.
Includes index.
Data transmission systems.
Business enterprises--Communication systems.
Business enterprises--Computer networks.
HD30.335 / SER 2004