Other kinds of media that are used include SSDs, magnetic tapes, and optical discs. As of 2019, hard disk drives have been key storage devices and are projected to remain so for the foreseeable future. For example, the ISO 9660 and UDF file systems are designed specifically for optical discs.įile systems can be used on many types of storage devices using various media. Some file systems have been designed to be used for specific applications. There are many kinds of file systems, each with unique structure and logic, properties of speed, flexibility, security, size and more. The structure and logic rules used to manage the groups of data and their names is called a "file system." Taking its name from the way a paper-based data management system is named, each group of data is called a " file". By separating the data into pieces and giving each piece a name, the data are easily isolated and identified. Without a file system, data placed in a storage medium would be one large body of data with no way to tell where one piece of data stopped and the next began, or where any piece of data was located when it was time to retrieve it.
In computing, a file system or filesystem (often abbreviated to fs) is a method and data structure that the operating system uses to control how data is stored and retrieved.
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