00350nam a2200145Ia 4500008004100000020001500041041001200056082001100068100002000079245004900099250000800148260002500156300000900181650001400190221030s9999    xx            000 0 und d  a8120339040  aEnglish  a105.23  aA. S. Tanenbaum 0aModern Operating systemscby A. S. Tanenbaum  a3rd  bPHIaNew Delhic2012  a1076  aComputers