TY - BOOK AU - White,Curt M. TI - Data communications and networking SN - 9788131505571 (pbk) U1 - 004.6 PY - 2007/// CY - United States PB - Cengage Learning KW - Computer science KW - Data transmission systems KW - Computer networks KW - OSI model KW - Digital data KW - Data link KW - Interfaces KW - Networking KW - LAN KW - FC N1 - includes index ER -