Access Methods | File Access Methods | operating systems | Sequential | Direct | Indexed | File Syst

October 7, 2019
by
Sudhakar Atchala
YouTube video player
Access Methods | File Access Methods | operating systems | Sequential | Direct | Indexed | File Syst

About the Video

#AccessMethods #FileAccessMethods #operatingsystemlectures

When a file is used, information is read and accessed into computer memory and there are several ways to access this information of the file. Some systems provide only one access method for files. Other systems, such as those of IBM, support many access methods, and choosing the right one for a particular application is a major design problem.

There are three ways to access a file into a computer system: Sequential-Access, Direct Access, Index sequential Method.

Sequential Access –

It is the simplest access method. Information in the file is processed in order, one record after the other. This mode of access is by far the most common; for example, editor and compiler usually access the file in this fashion.

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