TY  - GEN
AU  - Gupta.C,Prakash C
TI  - Data Communications / 
SN  - 8120311183
U1  - 004.6,GUP 
PY  - 1996///
CY  - New Delhi
PB  - Prentice Hall
N1  - Data Communication Concepts and Terminology (Page-1), Transmission Media (Page-21), Modems and Data Multiplexers (Page-73), Error Control (Page-122), References Models for Open Systems Interconnection (Page-143), The Physical Layer (Page-165), The Data Link Layer (Page-195), HDLC High Level Data Link Control (Page-227), The Network Layer (Page-253), CCITT X.25 Interface (Page-286), Local Area  Networks (Page-324), Media Access Control in local Area Networks (Page-342), Internetworking (Page-369), The Transport and Upper OSI Layers (Page-399)
ER  -