00531nam a22001097a 4500020002100000082001300021100005300034245004100087260004100128300003500169650021700204  a8121922186 (pbk)  a004bKUM  aKumar, Sarvana R.aR.ParameswaranaT.Jayalakshmi  aA textbook of information technology  aNew Delhi bS .Chand & Companyc2014  aviii, 280 p.c; 22 cm.b: ill.  aInformation technologyaComputer sciencevData processingvIntroductory conceptsvInformation societyvOperating systemsvNetwork communicationvCommunication technologyvInformation managementvGlobalizationvFC