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A file system in OS dictates how the contents of a storage medium are stored and organized. • These storage media (such as secondary memory, external drives, etc) could be computer secondary memory, flash memory, etc. • The contents are either files or directories. • Most of the time, a storage device has a number of partitions. Each of these partitions is formatted with an empty filesystem for that device. A filesystem helps in separating the data on the storage into comparatively smaller and simpler segments. • These chunks are files and directories. The filesystem also provides for storing data related to files, such as their name, extension, permissions, etc. What is a Filesystem in OS? Properties of a Filesystem • Files are stored on a storage medium such as disk and do not vanish when a user logs out of the computer system. • With each file are associated access permissions, which permit controlled sharing of that file. • Files may form arranged or complex structures according to the relationship among them. What is a Filesystem in OS? Properties of a Filesystem • Several files can be grouped together under a directory. • A directory also referred to as a folder also has attributes similar to those of a file, such as a name, size, location, access permissions, etc. • A file system also provides several features such as a crash recovery mechanism, data loss/corruption prevention, etc.

Competitive Programming