000			00376nam a2200181Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
082			_a5.43
100			_aMilan M.
245		0	_aOperating systems.
260			_aNew Delhi
260			_bTata Mcgraw Hill
260			_c2001
300			_a755p.
365			_b245
650			_aCOMPUTER
942			_cDBK
999			_c26727 _d26727