00330nam a2200121 a 450000500170000002000150001708200130003210000160004524500490006126000390011030000290014963000300017820251202164245.0  a0534064981  a004bPIC  aPick, James  aComputer system in business: An introduction  aBostonbPWS computer sciencec1986  axxvii,690 p.b22 cm.cPB  aBusiness, Data processing