Explain traditional multimedia file system?
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Silberschatz and Galvin (2009) explained that file system within any operating system provides the mechanism for storing and accessing a file contents which including data and programs. With the bulk storage that can exist in the secondary storage (the disk), the file system plays a big roles in maintaining such storage. To improve the efficiency of I/O in transferring files from the disk to the memory, the transformation is performed in units of blocks, where each block has one or more sectors and each sector can contains from 32 bytes to 4,096 bytes of information. On the other hand, file systems provides efficient access to the disk by allowing data to be stored, retrieved, and located easily. However, the file system faces two problems when it comes to dealing with files:
Defining how file system should look to the eyes of the users i.e. defining the file and its attributes, the operation allowed on the files and the directory structure that host such files.
Defining the algorithm and that data structure that can map the logical file system into the physical storage device (the disk).
Once the above problems are tackled through the implementation of the file system design, the file system needs to only be able to issue generic commands to the appropriate device driver to read and write physical blocks on the disk (Silberschatz and Galvin, 2009).
Marshall (2001) explained that in modern computing systems, operating system are not only required to handle conventional data such as text files, programs and others via their file system implementation, but also to handle a new kind of data types such as multimedia data where data consist of continuous-media (such as audio and video) data as well as conventional files.
Defining how file system should look to the eyes of the users i.e. defining the file and its attributes, the operation allowed on the files and the directory structure that host such files.
Defining the algorithm and that data structure that can map the logical file system into the physical storage device (the disk).
Once the above problems are tackled through the implementation of the file system design, the file system needs to only be able to issue generic commands to the appropriate device driver to read and write physical blocks on the disk (Silberschatz and Galvin, 2009).
Marshall (2001) explained that in modern computing systems, operating system are not only required to handle conventional data such as text files, programs and others via their file system implementation, but also to handle a new kind of data types such as multimedia data where data consist of continuous-media (such as audio and video) data as well as conventional files.
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