00373nam a2200157Ia 4500008004100000020000900041035001000050082001800060100002600078245003100104250000600135260003600141300000800177500000900185650002100194210723s9999||||xx |||||||||||||| ||und||  aNULL  a21434  a510.7834BSIL  aSilberschatz, Abraham 0aOperating Systems Concepts  a-  aNew YorkbJohn Wiley & Sons Inc  a887  a2958  aComputer Science