000			00354nam a2200133Ia 4500
008			130318s9999 xx 000 0 und d
020			_a70482942
082			_a005.43 DHA/O
100			_aDhamdhere, D M
245			_aOperating systems: A concept based approach
260			_bTata Mc Graw Hill _aNew Delhi _c2002
300			_a806
650			_aOPERATING SYSTEM
999			_c546 _d546