Computer Data Storage Device
Jump to navigation
Jump to search
A Computer Data Storage Device is a data storage device typically used by a computer.
- Context:
- It can range from being a Volatile Computer Data Storage Device to being a Non-Volatile Computer Data Storage Device.
- …
- Example(s):
- a Hard Disk Drive.
- a Solid State Drive.
- …
- Counter-Example(s):
- See: Data Backup Device, USB Drive.
References
2013
- http://en.wikipedia.org/wiki/Computer_data_storage
- Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. It is a core function and fundamental component of computers. The central processing unit (CPU) of a computer is what manipulates data by performing computations. In practice, almost all computers use a storage hierarchy, which puts fast but expensive and small storage options close to the CPU and slower but larger and cheaper options farther away. Often the fast, volatile technologies (which lose data when powered off) are referred to as "memory", while slower permanent technologies are referred to as "storage", but these terms can also be used interchangeably. In the Von Neumann architecture, the CPU consists of two main parts: control unit and arithmetic logic unit (ALU). The former controls the flow of data between the CPU and memory; the latter performs arithmetic and logical operations on data.