what is filesystem?

Answer 1

A file system is the structure added to teh disk that allows the operating system to reamdomly read and write data to the tisk and find it.

In general, the disk is formatted with pre-recorded "blocks" which the controller can directly address. The blocks contain address information in a digital envelope that the OS can use in reading the file.

The original Dos filesystem is the FAT (File Allocation Table) filesystem. This is a very simple file system that has a special area of the disk set aside for the FAT, which is basically the root directory. this directory han entries that contain the filename, attributes, and a pointer to the cluster ( a group of contiguous block) that hold the beginning of the file.. If the file won't fit in one cluster, the os searches for the next unused cluster and and adds a pointer to the last cluster. This works well but can become severely fragmented over time. In the Fat filesystem, a file is deleted by taggindg the entry in the FAT as available.

By contrast, the unix filesystem(ufs) and variants used by linux, and BSD, use an indexed file system. In this case, the system keepes a directory with file name and atributes, and a pointer to a record in an inode (index node) the inode contains an indexed list of the space usage on the hard drive, including areas available for storage. in this case, the system stores a file by looking in the inode for a free chunk of disk space that is just big enough to hold the file. in the reare case where a file grows, extents are managed through the inode entries,
When a file is deleted, ufs removed the filenetry from the directory, and then marks the inode entry as available. it then will combine contiguous free space entries in the inode.
Ufs is more complex then FAT, but minimizes fragmentation.

Answer 2

did u Mean "File System"?
if yes then -
(1) it is a facility provided by computer languages to store data physically (on hard disk or other storage media) in files.
(2)"File System " also termed as data storage facility in different Operating Systems.
these are- Fat X, NTFS and many more.

Answer 3

Types of file systems they are fat16 and fat32 and Ntfs and hfs etc

Answer 4

To be more precise... it's

Storing & organising computer files.