00688nam a22002052  4500001001100000005001700011008004100028020001700069040001500086100003500101245013100136250001300267260003600280300002000316650002700336650004000363650004300403700003300446852000300479000002362620151217155234.0130312s         xx           000 0 eng d  a0071221399 :  aKABUcKABU1 aWilliams, Brian K.@000015427510aUsing information technology :ba practical introduction to computers & communications /cBrian K. Williams, Stacey C. Sawyer.  a9th  ed.  aNew York :bMcGraw-Hill,c2011.  axxviii, 577  p. 0aComputers.@0000153924 0aInformation technology.@0000150287 0aTelecommunication systems.@00001542881 aSawyer, Stacy C.@00001831881