000 00286nam a2200121Ia 4500
008 160122s9999 xx 000 0 und d
041 _aEnglish
100 _aWilliam Stallirags
245 _aOperating system
260 _bDelhi:Pearson Pub.
_c2001
300 _a779p.
650 _aComputer
999 _c4726
_d4726