16 Facts About Computer storage

Computer data storage is a technology consisting of computer components and recording media that are used to retain digital data.

Analysis of the trade-off between Computer storage cost saving and costs of related computations and possible delays in data availability is done before deciding whether to keep certain data compressed or not.

Generally, the lower a Computer storage is in the hierarchy, the lesser its bandwidth and the greater its access latency is from the CPU.

Primary Computer storage, often referred to simply as memory, is the only one directly accessible to the CPU.

The particular types of RAM used for primary Computer storage are volatile, meaning that they lose the information when not powered.

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Secondary Computer storage is often formatted according to a file system format, which provides the abstraction necessary to organize data into files and directories, while providing metadata describing the owner of a certain file, the access time, the access permissions, and other information.

Tertiary Computer storage or tertiary memory is a level below secondary Computer storage.

Tertiary Computer storage is known as nearline Computer storage because it is "near to online".

Example, always-on spinning hard disk drives are online Computer storage, while spinning drives that spin down automatically, such as in massive arrays of idle disks, are nearline Computer storage.

Since the primary Computer storage is required to be very fast, it predominantly uses volatile memory.

Distinct types of data Computer storage have different points of failure and various methods of predictive failure analysis.

Magnetic Computer storage uses different patterns of magnetization on a magnetically coated surface to store information.

Magneto-optical disc Computer storage is optical disc Computer storage where the magnetic state on a ferromagnetic surface stores information.

Important characteristics of such Computer storage are possible expansion options: adding slots, modules, drives, robots.

Robotic Computer storage is used for backups, and for high-capacity archives in imaging, medical, and video industries.

Hierarchical Computer storage management is a most known archiving strategy of automatically migrating long-unused files from fast hard disk Computer storage to libraries or jukeboxes.