000			00307nam a2200133Ia 4500
005			20260413100443.0
008			230516s9999||||xx |||||||||||||| ||und||
100			_aSingh, Charanjeet
245		0	_aOperating Systems
260			_bJalandhar , Kalyani Pub.
300			_a300
942			_cDB
999			_c1315 _d1315