00488nam a22001817a 450000500170000001000270001702000260004403500130007003500140008303700130009708200110011010000190012124500410014025000110018126000450019227000360023730000330027320230112154135.0  aENG-112357  ENG-135976  a9789325975637c395.00  aEN-95889  aEN-119508  bDBAD/PUB  a005.43  aKhurana, Rohit  aOperating system /cby Rohit Khurana  a2nd ed  aNoida (UP)bVikas Publishing Housec2014  aE-28, Sector-8, bNoidae201301  axvi,432p. :c24cm(pbk)bill.