General Audit is a jobs connection with accounting and tax knowledge, but Some Audit Knowledge have some types of audit, it is depends on functional and types of company, based from what I know now, there is some types of audit, likes manufacturing industry, service industry, trading company, information and service industry, at manufacturing industry there is needs operational and financial audit but at information and service industry doesn’t need, just need information systems audit, and the certification auditor have many abbrevation, like CIA (Certified Internal Auditor), or CISA ( Certified Information System Auditor), but from my searching at website and based from general knowledge, I can make conclusion types of audit :

1.Operational audits are comprehensive reviews of the varied functions within an enterprise to appraise the efficiency and economy of operations and the effectiveness with which those functions achieve their objectives.
2.Investigative audits identify the facts and circumstances of assigned missions by the Chairman/General Manager and the Board of directors.
3.Financial audits are analyses of the economic activity of an entity as measured and reported by accounting methods.
4.Information Systems audits are analyses of effectiveness, efficiency, confidentiality, integrity, availability, compliance, and reliability of data and programs on computer and communication systems.
5.Compliance audits measure the adherence with hospital policies, procedures, governmental laws, regulations, and contract requirements.