00685nam a2200193Ia 450000500170000000800410001702000150005804000180007304100080009108200240009910000210012324501950014425000120033926000410035130000200039265000360041265000230044865000200047120220917114126.0210716s2003    xx            000 0 und d  a8177223623  cAIMIT LIBRARY  aeng  a621.38212 21bPRAK  aPrasad, K V K K.  aPrinciples of digital communication systems and computer networks :bcomprehensive coverage of digital communications data communications protocols and mobile computing /cBy K V K K Prasad.  a1st ed.  aNew Delhi :bDreamtech Press,c2003.  a624p. ;c23 cm.  aBasics of communication systems  aTransmission media  aMultiple access