00474nam a22001697a 450000500170000001000150001702000260003203500130005803700130007108200110008410000160009524500580011126000380016927000460020730000320025370000190028520151117113955.0  aENG-114087  c195.00a9788183335249  aEN-97619  bDBAD/PUB  a005.43  aGarg, Ruchi  aOperating systems /cby Ruchi Garg [and] Garima Verma  aNew DelhibBPB Publicationsc2015  aB-14 Connaught place,bNew Delhi e110001  axii,248p.:c22cm(pbk)bill.  aVerma, Garima