000			00518nam a2200217Ia 4500
001			21276
005			20250221151700.0
008			250214s9999||||xx |||||||||||||| ||und||
020			_a8178080354
100			_aDeitel, Harvey M
245		3	_aAn introduction to operating systems
250			_a2
260			_aNew York
260			_bAddison-Wesley
260			_c1990
300			_axxvi, 853p.
500			_aIncludes index
650			_aOperating systems
650			_aUNIX -- Operating systems
942			_cBK
999			_c37246 _d37246