redundancy — redundant ► ADJECTIVE 1) not or no longer needed or useful; superfluous. 2) chiefly Brit. made unemployed because one s job is superfluous to requirements. DERIVATIVES redundancy noun (pl. redundancies) redundantly adverb. ORIGIN originally in… … English terms dictionary
Cyclic redundancy check — A cyclic redundancy check (CRC) is an error detecting code designed to detect accidental changes to raw computer data, and is commonly used in digital networks and storage devices such as hard disk drives. Blocks of data entering these systems… … Wikipedia
Standard RAID levels — The standard RAID levels are a basic set of RAID configurations and employ striping, mirroring, or parity.The standard RAID levels can be nested for other benefits ( see Nested RAID levels ). Concatenation (SPAN) The controller treats each drive… … Wikipedia
information theory — the mathematical theory concerned with the content, transmission, storage, and retrieval of information, usually in the form of messages or data, and esp. by means of computers. [1945 50] * * * ▪ mathematics Introduction a mathematical… … Universalium
ГОСТ 27.002-89: Надежность в технике. Основные понятия. Термины и определения — Терминология ГОСТ 27.002 89: Надежность в технике. Основные понятия. Термины и определения оригинал документа: 1.2. Безотказность Reliability, failure free operation Свойство объекта непрерывно сохранять работоспособное состояние в течение… … Словарь-справочник терминов нормативно-технической документации
Error detection and correction — In mathematics, computer science, telecommunication, and information theory, error detection and correction has great practical importance in maintaining data (information) integrity across noisy channels and less than reliable storage… … Wikipedia
Compiler optimization — is the process of tuning the output of a compiler to minimize or maximize some attributes of an executable computer program. The most common requirement is to minimize the time taken to execute a program; a less common one is to minimize the… … Wikipedia
communication — communicational, adj. /keuh myooh ni kay sheuhn/, n. 1. the act or process of communicating; fact of being communicated. 2. the imparting or interchange of thoughts, opinions, or information by speech, writing, or signs. 3. something imparted,… … Universalium
Mutual information — Individual (H(X),H(Y)), joint (H(X,Y)), and conditional entropies for a pair of correlated subsystems X,Y with mutual information I(X; Y). In probability theory and information theory, the mutual information (sometimes known by the archaic term… … Wikipedia
Backup — For other uses of Backup , see Backup (disambiguation). In information technology, a backup or the process of backing up is making copies of data which may be used to restore the original after a data loss event. The verb form is back up in two… … Wikipedia
Reliability engineering — is an engineering field, that deals with the study of reliability: the ability of a system or component to perform its required functions under stated conditions for a specified period of time. [ Definition by IEEE] It is often reported in terms… … Wikipedia