Opération bit à bit
- Opération bit à bit
-
En informatique, les opérations bit à bit apparaissent dans beaucoup des langages de programmation, et permettent de manipuler les données binaires, directement au niveau des bits. Elles sont utiles dès qu'il s'agit de manipuler les données à bas niveau : codages, couches basses du réseau (par exemple TCP/IP), cryptographie, où elles permettent également les opérations sur les corps finis de caractéristique 2.
Les opérations bit à bit courantes comprennent des opérations logiques bit par bit, et des opérations de décalage des bits, vers la droite ou vers la gauche.
Articles liés
Wikimedia Foundation.
2010.
Contenu soumis à la licence CC-BY-SA. Source : Article Opération bit à bit de Wikipédia en français (auteurs)
Regardez d'autres dictionnaires:
Operation Flashpoint: Dragon Rising — Developer(s) Codemasters Publisher(s) Codemasters … Wikipedia
Bit manipulation — is the act of algorithmically manipulating bits or other pieces of data shorter than a byte. Programming tasks that require bit manipulation include low level device control, error detection and correction algorithms, encryption algorithms, and… … Wikipedia
Bit-level parallelism — is a form of parallel computing based on increasing processor word size. From the advent of very large scale integration (VLSI) computer chip fabrication technology in the 1970s until about 1986, advancements in computer architecture were done by … Wikipedia
Bit synchronous operation — is a type of digital communication in which the data circuit terminating equipment (DCE), data terminal equipment (DTE), and transmitting circuits are all operated in bit synchronism with a clock signal. In bit synchronous operation, clock timing … Wikipedia
Operation Flashpoint: Dragon Rising — Обложка коробки с диском Разработчик Codemasters … Википедия
Bit blit — ( bitblt , blitting etc.) is a computer graphics operation in which several bitmap patterns are combined into one using a raster operator .OriginsThe name derives from the BitBLT machine instruction for the Xerox Alto computer, standing for Bit… … Wikipedia
Bit rot — Bit rot, also known as bit decay, data rot, or data decay, is a colloquial computing term used to describe either a gradual decay of storage media or the degradation of a software program over time. The latter use of the term implies that… … Wikipedia
Operation Mincemeat — was a successful British deception plan during World War II. As part of the widespread deception plan Operation Barclay to cover the intended invasion of Italy from North Africa, Mincemeat helped to convince the German high command that the… … Wikipedia
Operation Sandblast — Part of Cold War (1953–1962) … Wikipedia
Operation Project X — (originally The Neo Project), was an effort to discover the encryption key for Xbox software by brute force, to allow homebrew software to run on the platform without a modchip. Since it is a 2048 bit key, the project by its own admission was… … Wikipedia
