Data storageData storage is the recording (storing) of information (data) in a storage medium. Handwriting, phonographic recording, magnetic tape, and optical discs are all examples of storage media. Biological molecules such as RNA and DNA are considered by some as data storage. Recording may be accomplished with virtually any form of energy. Electronic data storage requires electrical power to store and retrieve data. Data storage in a digital, machine-readable medium is sometimes called digital data.
NorthbridgeLe pont nord (en anglais northbridge) est, avec le pont sud (en anglais southbridge), une des deux puces du jeu de circuits (chipset) d’une carte mère, directement relié au microprocesseur et gérant les périphériques rapides, dont la mémoire. Le pont nord gère des communications entre le microprocesseur et les périphériques rapides tels que : la mémoire vive ; le bus AGP pour carte graphique ; les bus PCI Express pour les périphériques externes rapides dont les cartes graphiques ; le pont sud pour les périphériques lents.
Edholm's lawEdholm's law, proposed by and named after Phil Edholm, refers to the observation that the three categories of telecommunication, namely wireless (mobile), nomadic (wireless without mobility) and wired networks (fixed), are in lockstep and gradually converging. Edholm's law also holds that data rates for these telecommunications categories increase on similar exponential curves, with the slower rates trailing the faster ones by a predictable time lag.
