00583cam a22001938a 4500020001900000020001600019040000800035082002600043100002400069245009300093250001200186260003500198300004000233500002000273650001500293650003100308650002800339700002200367  a9780073516752   a0073516759   cDLC00a004 HIL 2010 A002 Or.1 aWilliams, Brian K.,10aUsing information technology :ba practical introduction to computers & communications /  a8th ed.  aBoston :bMcGraw Hill,cc2010.  axxiv, 563 p. :bcol. ill. ;c28 cm.  aIncludes index. 0aComputers. 0aTelecommunication systems. 0aInformation technology.1 aSawyer, Stacey C.