Wednesday, April 22, 2009

File Organization

A file is organized to ensure that records are available for processing. As mentioned earlier, it should be designed in line with the activity and volatility of the information and the nature bf the storage media and de­ ices. Other considerations are (1) cost of file media (highest for disk, lowest for tape), (2) inquiry requirements (real-time versus batch processing, and 3 file privacy, integrity, security, and confidentiality.

There are four methods of organizing files: sequential, indexed-sequential inverted list, and direct access. Each method is explain

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