00353nam a2200121 a 450000500170000002000150001708200160003210000280004824500480007625000130012426000650013730000290020220251203110927.0  a0070611947  a005.43bDHA  aDhamdhere, Dhananjay M.  aOperating systemsbconcept - based approach  a2nd Edn.  aNew DelhibTata McGraw - Hill Publishing company Ltd.,c2006  axviii, 789p.c24 cm. PB.