File Organization: File Logical Structure

What is a File: A file is a collection of set(Ordered or Unordered) of data elements stored on 'storage device' of 'storage media' which can be a computer hard disc, memory card, floppy drive, CD, DVD, extra

Files storage

Logical structure of a file:

There are two things which makes a file which are as follows

1) Field: Smallest (fixed) indivisible logical unit of file. If field holds a part of some data value.

2) Record: Effect of logically related fields. Size of the record may be fixed or variable size. Files Constituents

File is just not the table, it records can be organised in many different ways define a unique organisation.

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