wasted bandwidth
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Anti-spam techniques — To prevent e mail spam (aka unsolicited bulk email), both end users and administrators of e mail systems use various anti spam techniques. Some of these techniques have been embedded in products, services and software to ease the burden on users… … Wikipedia
Chain letter — For other uses, see Chain letter (disambiguation). Top portion of a Letter from Heaven, produced in England … Wikipedia
Flooding (computer networking) — Flooding is a simple routing algorithm in which every incoming packet is sent through every outgoing link. Advantages* If a packet can be delivered, it will (probably multiple times). * Since flooding naturally utilizes every path through the… … Wikipedia
Sciencenet — Infobox Software name = Sciencenet YaCy caption = developer = Michael Christen latest release version = 0.61 latest release date = October 2, 2008 operating system = Platform independent genre = Search engine programming language = Java license … Wikipedia
Electronic amplifier — A practical amplifier circuit An electronic amplifier is a device for increasing the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In… … Wikipedia
Last mile — The last mile is the final leg of delivering connectivity from a communications provider to a customer. Usually referred to by the telecommunications and cable television industries, it is typically seen as an expensive challenge because fanning… … Wikipedia
Smart grid — Public infrastructure … Wikipedia
Statistical multiplexing — is a type of communication link sharing, very similar to Dynamic bandwidth allocation (DBA). In statistical multiplexing, a communication channel is divided into an arbitrary number of variable bit rate digital channels or data streams. The link… … Wikipedia
High-definition television — Logo High definition television (HDTV) is video that has resolution substantially higher than that of traditional television systems (standard definition television). HDTV has one or two million pixels per frame, roughly five times that of SD… … Wikipedia
Amplifier — For other uses, see Amplifier (disambiguation). Generally, an amplifier or simply amp, is a device for increasing the power of a signal. In popular use, the term usually describes an electronic amplifier, in which the input signal is usually a… … Wikipedia
Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr … Wikipedia
