Hfs file system allocation strategy iso#

Exactly like organizing a library, the operating system stores the data in the empty spaces of the disk, labeling it with an FCB ( File Control Block ) and creating a list with the position of this data, called MFT ( Master File Table ). Once organized, or during organization, the librarian creates a list of all the books in the library, with their subjects, locations and respective codes.Р”Р„pplying the analogy to computing, the operating system would be the librarian of the computerРІР‚в„ўs РІР‚Сљdata libraryРІР‚Сњ, the storage disk. Still, it certainly organizes books according to their characteristics (subject, censorship, etc.). The librarian organizes the books according to a pattern, the search of which, conveniently, seeks to make it easier, without occupying many shelves and ensuring its integrity. Making analogies, such an organization resembles a school library. In 1961, the term was being applied to computerized filing alongside the original meaning. Reliability, efficiency and fit with respect to the physical storage medium are important design considerations.Р”В«efore the advent of computers, the term file system was used to describe a method of storing and retrieving paper documents. It is responsible for organizing the storage space. The file system manages access to file content and metadataabout these files. Some file systems are РІР‚СљvirtualРІР‚Сњ, which means that the provided РІР‚СљfilesРІР‚Сњ (called virtual files ) are computed upon request (like procfs and sysfs ) or are just a mapping on a different file system used as backup storage.

Some file systems are used on local data storage devices, others provide access to files via a network protocol (for example, NFS, SMB or 9P clients ). In some cases, such as tmpfs, the computerРІР‚в„ўs main memory ( random access memory, RAM) is used to create a temporary file system for short-term use. Other types of media used include flash memory, magnetic tapes and optical discs. The most common storage device in use today is a hard drive. Р”Р‡ile systems can be used on several different types of storage devices that use different types of media.

Hfs file system allocation strategy iso#

For example, the ISO 9660 file system was designed specifically for optical discs. Some file systems are designed to be used in specific applications. Each has a different structure and logic, properties of speed, flexibility, security, size and more. There are many different types of file systems. The structure and logical rules used to manage groups of information and their names are called РІР‚Сљfile systemsРІР‚Сњ. Taking its name from the way paper-based information systems are named, each group of data is called a РІР‚СљfileРІР‚Сњ. By separating the data into pieces and giving each piece a name, the information is easily isolated and identified.

Without a file system, information placed on a storage medium would be a large body of data, with no way of telling where one piece of information ends and the next begins. It controls how data is stored and retrieved, enabling the operating systemdecode the stored data and read or write it. In computing, file system ( European Portuguese ) or file system ( Brazilian Portuguese ) (also known as file management system ) is the form of organizing data in some mass data storage medium, often done on magnetic disks.

Visual representation of a file system, including directories (folders) and files (files)