000			00377nam a2200181Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
082			_a16404
100			_aMilenkovic M.
245		0	_aOperating systems.
260			_aNULL
260			_bMcgraw Hill Inc.
260			_c1992
300			_a755p.
365			_b423
650			_aCOMPUTER
942			_cDBK
999			_c24597 _d24597