00549nam a22001457a 4500 0 0 0 0 RIU RIU 2012-04-18 Purchased: ABSCO Islamabad 820.00 0 004.6 BEA 1002 2012-04-18 00:00:00 1 2012-04-18 BK 492 492 0077077946 (pbk) 004.6 BEA Bearpark, Keith Peter J. Beevor Computer communications a business perspective London McGraw-Hill Book Company 1993 ix, 224 p. : ill. ; 24 cm Includes index Business enterprises Computer architecture Computer networks Telecommunication systems Network architecture Network management Network security LAN FC BK