00370nam a2200133Ia 4500001000500000005001700005008004100022020001500063082001500078100002200093245006100115260002600176650003400202261920261006003634.0120911s9999    xx            000 0 und d  a0201567016  a005.43 DAV  aDavis, William S.  aOperating system : a systematic view / William S. Davis.  aThe Berjamin/Cummings  aOperating systems ( Computer)