Indexed Sequential Access Notes: Definitions & Explanations PDF Download
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Indexed Sequential Access Definition:
Pertaining to the organization and accessing of the records of a storage structure through an index of keys that are stored in arbitrarily partitioned sequential files.
Operating Systems by William Stallings
Indexed Sequential Access Notes:
Indexed Sequential Access is a method that modifies the direct access method. Basically it combines both, the direct and sequential method. In this method, the index is nothing but a pointer to the memory block. The direct access is used to access a record in a file. The main advantage of this method is that both direct and sequential access of files is possible.
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