00329nam a2200133Ia 4500008004100000041001200041082002200053100002600075245002200101250001200123260002900135300000900164650002200173231217s9999    xx            000 0 und d  aEnglish  a001.642  BAL;1  R  aBalakrishna Prasad, P 0aOperating systems  a2nd ed.  c2004bScientechaChennai  a8.18  aOperating,systems