Friday, October 11, 2013

Difference between Direct File Organization and Sequential File Organization

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Difference between Direct File Organization and Sequential File Organization: There are only two principal ways to access the data sequential and direct. But there are many methods to organize the data like serial, sequential. Indexed, indexed sequential and direct organization.

Sequential File Organization
Direct Access File Organization
1
In this records are arranged one after another in sequence
In this records are arranged directly or sequentially.
2
Data Access is sequential.
Data Access is Direct.
3
Data Access Speed is slower.
Data is accessed at high speed.
Data is accessed at high speed.

4
Used mainly in Magnetic Tape.

Used in Disk type of media like, Hard disk, CD, Floppy etc.
5
Used in mainly Backup and updating types of jobs of larger size of files
Used in any type of jobs and size of files.

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