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The Characteristics Of Computer Memory And Information Storage Devices

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Computer memory (an information storage device, a storage device) is a part of a computer, a physical device or a data storage medium used in calculations for a particular time. Memory, like the CPU, is an unchanged part of the computer since the 1940s. Memory in computing devices has a hierarchical structure and usually involves the use of multiple memory devices having different characteristics.
Computer memory provides support for one of the functions of a modern computer, the ability to store information for a long time. Together with the central processor, the storage device is a key part of the so-called von Neumann architecture, the principle underlying most modern computers of general purpose (Tsien 52–59). The first computers used storage devices solely for storing the processed data. Their programs were implemented on the hardware level in the form of hard-coded executable sequences. Any reprogramming required a huge amount of manual work on the preparation of new documentation, re-computation, the rebuilding of blocks and devices, etc. The use of von Neumann architecture, which provides storage of computer programs and data in shared memory, radically changed the situation. Any information can be measured in bits and therefore, regardless of what physical principles and in what number system the digital computer (binary, ternary, decimal, etc.) functions, numbers, text information, images, sound, video and other types of data can be represented by bit string
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