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Records are stored and accessed in a particular order sorted using a key field. The key field is used to search for particular record. Searching commences from the beginning of file and proceed to the tail of the file till the record is reached e.g. in magnetic tapes.
Advantages
Simple to understand the approach
Easy to organize, maintain and understand
In expensive input output media and devises are used
Disadvantages
Entire file must be accessed even when the activity rate is very low.
Random inquiries are impossible to handle.
Data redundancy is typically high.
Kavungya answered the question on April 16, 2019 at 10:00
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