Data storage

Data Storage

Data storage (pronunciation: /ˈdeɪtə ˈstɔːrɪdʒ/) is the collective methods and technologies that capture and retain digital information on electromagnetic, optical or silicon-based storage media.

Etymology

The term "data storage" is derived from the Latin word "data", meaning "things given", and the English word "storage", meaning "a place where something is kept".

Types of Data Storage

There are several types of data storage, including:

Primary storage: Also known as main storage or memory, this is the area in a computer in which data is stored for quick access by the computer's processor.

Secondary storage: This refers to storage devices and media that are not always directly accessible by a computer. Examples include hard disk drives and compact discs.

Tertiary storage: This includes storage systems that are slower and less frequently accessed than secondary storage, often used for archival purposes.

Off-line storage: This is a data storage method where data is stored on off-line storage media rather than being constantly available to the network.

Cloud storage: This is a model of data storage where the digital data is stored in logical pools, the physical storage spans multiple servers, and the physical environment is typically owned and managed by a hosting company.

Related Terms

Data: A set of values of qualitative or quantitative variables; restated, pieces of data are individual pieces of information.

Storage media: The devices or materials on which data can be stored.

Data management: The practice of organizing and maintaining data processes to meet ongoing information lifecycle needs.

Data center: A large group of networked computer servers typically used by organizations for the remote storage, processing, or distribution of large amounts of data.

Data recovery: The process of salvaging inaccessible, lost, corrupted, damaged or formatted data from secondary storage, removable media or files, when the data stored in them cannot be accessed in a usual way.

External links

Medical encyclopedia article on Data storage
Wikipedia's article - Data storage

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