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SYSTEM INTERNAL CONTROLS
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accounting application audit program audit software audit trail Auditape auditor backup basic batch batch processing check digit computer center computer operations computer programs computer room computer security computer system control totals cost damage data center data privacy data processing detect digit disk EDP operations EDP security EDP system employee equipment errors evaluation ﬁeld files ﬁre ﬁrm ﬁrst fraud function gram hardware installation internal audit internal control loss machine magnetic tape manual master ﬁle ment method on-line system organization output package personnel possible problem procedures program changes protection punched cards puter real-time system recovery responsibility result routine schedule security and control separation of duties source documents speciﬁc storage techniques terminal test deck time-sharing tion transactions trol update vital records