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Asymmetric Digital Subscriber Line Category:Acronyms





Encyclopedia results for Asymmetric Digital Subscriber Line Category:Acronyms

  1. Asymmetric Digital Subscriber Line

    , hence the antenna. Asymmetric Digital Subscriber Line ADSL is one form of the Digital Subscriber Line ... Interfaces Asymmetric Digital Subscriber Line ADSL Metallic Interface. American National Standards ... Asymmetric Digital Subscriber Line Category ITU T recommendations Category Digital Subscriber Line Category ... ca Asymmetric Digital Subscriber Line cs Asymmetric Digital Subscriber Line da Asymmetric Digital Subscriber Line de Asymmetric Digital Subscriber Line et As mmeetriline digitaalne abonendiliin el Asymmetric Digital Subscriber Line es Asymmetric Digital Subscriber Line eo ADSL eu ADSL fa fr Asymmetric Digital Subscriber Line gl ADSL ko ADSL hr ADSL id ADSL is Asymmetric Digital Subscriber Line it Asymmetric Digital Subscriber Line he ADSL lv ADSL lb Asymmetric Digital Subscriber Line lmo ADSL hu ADSL mk ml ms Talian Pelanggan Digital Asimetri nl Asymmetric Digital Subscriber Line ja ADSL no Asymmetric Digital Subscriber Line pap ADSL pms ADSL pl Asymmetric Digital Subscriber Line pt Asymmetric Digital Subscriber Line ro ADSL ru ADSL sk Asymmetric Digital Subscriber Line sl ADSL sr sh ADSL su ADSL fi ADSL sv Digital Subscriber Line ADSL tr ADSL uk ADSL ... exchange the line generally terminates at a Digital Subscriber Line Access Multiplexer DSLAM where ... Subscriber Line Access Multiplexer ADSL loop extender can be used to expand the reach and rate of ADSL services. Low pass filter and ADSL splitter . Symmetric Digital Subscriber Line SDSL Rate Adaptive Digital Subscriber Line RADSL Flat rate Attenuation distortion ADSL max List of device bandwidths Single pair high speed digital subscriber line SHDSL References Reflist External links External ... Subscriber Line Access Multiplexer DSLAM end where the wires from many local loops are close to each ... to purchase higher cost leased line services instead. In this fashion, it segments the digital communications ...   more details



  1. Symmetric digital subscriber line

    publisher Cisco Systems, Inc. accessdate 2008 12 03 ref See also Symmetric High speed Digital Subscriber Line G.SHDSL Digital Subscriber Line DSL Asymmetric Digital Subscriber Line ADSL ISDN List of device bandwidths References Reflist DEFAULTSORT Symmetric Digital Subscriber Line Category Digital Subscriber Line Category ITU T recommendations Compu network stub bs SDSL de Symmetric Digital Subscriber Line es SDSL fr Symmetric Digital Subscriber Line ko SDSL it SDSL nl SDSL no SDSL pl Symmetric Digital Subscriber Line pt SDSL ru SDSL tr SDSL ...Refimprove date December 2008 DSL technologies Symmetric Digital Subscriber Line SDSL can have two meanings In the wider sense it is a collection of Internet access technologies based on Digital subscriber line DSL that offer symmetric Bandwidth computing bandwidth Upstream networking upstream and downstream computer science downstream . It is considered the opposite of Asymmetric Digital Subscriber Line ADSL technologies where the upstream bandwidth is lower than the downstream bandwidth. In the narrow sense SDSL is a particular DSL variant that supports data only on a single line and does not support analog calls. SDSL technology SDSL is a rate adaptive Digital Subscriber Line DSL variant with T carrier T1 E carrier E1 like data rates T1 1.544 Data rate units Megabit per second Mbit s , E1 2.048 Mbit s . It runs over one pair of copper wires, with a maximum range of convert 10000 ft m . It cannot .... It is the predecessor of Single Pair High speed Digital Subscriber Line G.SHDSL which was standardized .... ref cite web url http www.itu.int rec T REC G.991.2 en title G.991.2 Single pair high speed digital subscriber line SHDSL transceivers publisher ITU T accessdate 2008 12 04 ref SDSL is often confused with G.SHDSL and High bit rate Digital Subscriber Line HDSL ref cite web url http www.blackbox.co.uk ... performance of a leased line . ref cite web url http www.cisco.com en US docs internetworking ...   more details



  1. ISDN digital subscriber line

    DSL technologies ISDN Digital Subscriber Line IDSL uses Integrated Services Digital Network ISDN based technology to provide a data communication channel across existing copper telephone lines at a rate of 144 kbit s, slightly higher than a bonded dual channel ISDN connection at 128kbit s. The digital transmission bypasses the telephone company s central office equipment that handles analogue signals. IDSL uses the ISDN grade loop without Basic Rate Interface in ISDN transmission mode. The benefits of IDSL over ISDN are that IDSL provides always on connections and transmits data via a data network rather than the carrier s voice network. ref cite press release url http www.cisco.com en US tech tk175 tk349 technologies q and a item09186a00800946d3.shtml title IDSL Frequently Asked Questions date February 26, 2008 publisher Cisco ref IDSL also avoids per call fees by being generally billed at a flat rate. IDSL is not available in all countries. ISDN digital subscriber line IDSL is a cross between ISDN and xDSL. It is like ISDN in that it uses a single wire pair to transmit full duplex data at 128 kbit s and at distances of up to RRD range. Like ISDN, IDSL uses a 2B1Q line code to enable transparent operation through the ISDN U interface. Finally, the user continues to use existing CPE ISDN BRI terminal adapters, bridges, and routers to make the CO connections. The big difference is from the carrier s point of view. Unlike ISDN, IDSL does not connect through the voice switch. A new piece of data communications equipment terminates the IDSL connection and shunts it off to a router or data switch. This is a key feature because the overloading of central office voice switches by data ... ISDN users as an initial market. References references DEFAULTSORT Isdn Digital Subscriber Line Category Digital Subscriber Line Category Integrated Services Digital Network telecomm stub de ISDN Digital Subscriber Line es IDSL fr IDSL it IDSL pl IDSL pt IDSL ru IDSL ...   more details



  1. Rate-Adaptive Digital Subscriber Line

    Unreferenced date December 2008 for RE ADSL2 ITU G.992.3 Annex L DSL technologies Rate Adaptive Digital Subscriber Line RADSL is a variation of Asymmetric Digital Subscriber Line ADSL technology. In RADSL the DSL modem adjusts the upstream networking upstream Bandwidth signal processing bandwidth to create a wider frequency band for the downstream traffic. Using this technique the line is more tolerant of errors caused by Noise physics noise and signal loss. As the frequency is adjusted, the upstream bandwidth may be markedly decreased if there is a large amount of line noise or signal degradation this may reduce the upstream bit rate to as little as 64 kbit s the same speed as a single ISDN B channel . See also Digital subscriber line DSL Single Pair High speed Digital Subscriber Line SHDSL Category Digital Subscriber Line de Asymmetric Digital Subscriber Line Aushandlung fr Rate Adaptive Digital Subscriber Line pl Rate Adaptive Digital Subscriber Line pt RADSL ru RADSL ...   more details



  1. High bit rate digital subscriber line

    for the entire HDSL family of protocols. See also Asymmetric Digital Subscriber Line Symmetric Digital Subscriber Line Digital Subscriber Line Very high data rate Digital Subscriber Line External links http www.itu.int rec T REC G.991.1 en ITU T Recommendation G.991.1 High bit rate Digital Subscriber Line HDSL transceivers http www.commsdesign.com main 1999 08 9908feat2.htm HDSL Primer http www.thehistoryof.net history of dsl.html History of DSL DEFAULTSORT High Bit Rate Digital Subscriber Line Category Digital Subscriber Line bs HDSL ca High Data Rate Digital Subscriber Line de High Data Rate Digital Subscriber Line es L nea de abonado digital de alta velocidad binaria fr High bit rate Digital Subscriber Line it HDSL he DSL DSL pl High bit rate Digital Subscriber Line pt HDSL ru HDSL sk High Data Rate Digital Subscriber Line ...Cleanup date August 2010 DSL technologies High bit rate Digital Subscriber Line HDSL was the first DSL technology to use a higher frequency spectrum of copper, twisted pair cables. HDSL was developed in the USA , as a better technology for high speed, synchronous circuits typically used to interconnect local exchange carrier systems, and also to carry high speed corporate data links and voice channels, using Digital Signal 1 T1 lines. HDSL service types include HDSL1, HDSL2 and HDSL4 and are typically ..., called HDSL2 and Symmetric Digital Subscriber Line SDSL . HDSL2 offers the same data rate ... system. T carrier circuits operate at 1.544 Mbit s . These circuits were originally carried using a line code called Alternate Mark Inversion AMI . Later the line code used was B8ZS . AMI did not have ... the problem were done in the USA, using the line code 2B1Q . This modulation allowed for a 784 ... line code, that reached the maximum bandwidth of 2.0 Mbit s using two pairs of copper. HDSL gave ... slow speed data links to customers. In this case, the line rate is still the full T1 E1 rate, but the customer ...   more details



  1. Digital Subscriber Line Access Multiplexer

    . See also commonscat DSLAM Asymmetric Digital Subscriber Line ADSL Broadband Internet access Broadband ... service providers, that connects multiple customer Digital Subscriber Line s DSLs to a high speed Internet backbone line using multiplexing techniques. ref citeweb title Digital Subscriber Line Access Multiplexer DSLAM url http www.iec.org online tutorials dslam publisher iec.org accessdate ... Protocol IP DSLAM stands for Internet Protocol Digital Subscriber Line Access Multiplexer . User ... device for CATV ISDN Digital Subscriber Line IDSL Symmetric Digital Subscriber Line SDSL Symmetric High speed Digital Subscriber Line SHDSL Triple play telecommunications References reflist External ... news ?ID 173 Portugal Telecom article in Portuguese Category Multiplexing Category Digital Subscriber Line ca DSLAM cs DSLAM de Digital Subscriber Line Access Multiplexer et DSL p rdusmultiplekser el Digital subscriber line access multiplexer es DSLAM fa fr Digital subscriber line access multiplexer ... pl Digital Subscriber Line Access Multiplexer pt Multiplexador de Acesso a Linha Digital do Assinante ...Diagram was included in the Role section, showing where the DSLAM sits on the path from the DSL subscriber to the Internet. reqdiagram File Outdoor DSLAM.JPG thumb Siemens DSLAM SURPASS hiX 5625 A Digital Subscriber Line Access Multiplexer DSLAM , often pronounced dee slam allows telephone lines to make ... connection rate capability of the subscriber s physical line. This compensation capability also ... Distribution Frame MDF a wiring rack that connects outside subscriber lines with internal lines. It is used ... a device for DSL service. The DSLAM port where the subscriber local loop is connected converts analog ... telephone voice and data line signaling features and the bandwidth monitoring and compensation ... SAI , sometimes in conjunction with a digital loop carrier . DSLAMs are also used by hotels .... Each modem on the aggregation card communicates with a single subscriber s DSL modem . This modem ...   more details



  1. Multi-rate symmetric digital subscriber line

    Unreferenced stub auto yes date December 2009 DSL technologies MSDSL , or Multi rate Symmetric DSL . is a Digital Subscriber Line technology with a maximum distance of 8,800  m 29,000  ft . It is capable of multiple transfer rates, as set by the Internet service provider , typically based on the service and or price. The maximum speed in both directions is 2 Mbit s. Technology MSDSL is a technology based on 2B1Q transmission with a capacity of 2.32 Mbit s. The bandwidth is split between a full E1 payload 2.048 Mbit s with the remaining bandwidth accommodating up to three voice channels or two ISDN channels. Additional bandwidth is used for management purposes. Transmission over the single pair requires echo cancellation and adaptive equalizers in order to achieve the maximum range at a specific rate. For each user rate, the modem changes the 2B1Q transmission rate, employing different filters and equalizer settings. The modem s adaptive setting is determined during its initial use, and continues constantly during operation. DEFAULTSORT Multi Rate Symmetric Digital Subscriber Line Category Digital Subscriber Line Compu network stub ...   more details



  1. Very-high-bitrate digital subscriber line

    systems very high speed digital subscriber line 2 VDSL2 ITU T G.993.2 approved in February ... digital region RiPWiRE http www.digitalregionbroadband.co.uk DRBSY Ltd http iplan.com.ar IPLAN Networks Argentina DEFAULTSORT Very High Bitrate Digital Subscriber Line Category Digital Subscriber Line cs VDSL de Very High Speed Digital Subscriber Line el Very high bitrate digital subscriber line es VDSL fr Very High Bitrate Digital Subscriber Line ko VDSL id VDSL it VDSL he DSL VDSL hu VDSL nl VDSL ja VDSL pl VDSL pt VDSL ru VDSL simple Very High Bitrate Digital Subscriber Line sk Very High Speed Digital Subscriber Line sl VDSL sr VDSL sv Digital Subscriber Line VDSL tr VDSL zh ... External links http www.itu.int rec T REC G.993.1 en ITU T Recommendation G.993.1 Very high speed digital subscriber line transceivers http www.uk bug.net UK Broadband Usergroup http thinkbroadband.com ... VDSL for Digital TV, Internet and WAN applications over their FTTC Fibre To The Curb network. EFTel .... The theoretical bandwidth right now is 100 100  Mbit s synchronous line downstream upstream ... VDSL with 20, 25, 30 and 40  Mbit s asymmetric, up speed 1  Mbit s in certain areas in north ... offerings use an FTTx access line network architecture. Malaysia Alcatel Lucent is also a provider of VDSL .... With speeds of up to 30  Mbit s symmetrical. From March 2009, VDSL2 line cards will be progressively ... marketed as such, a final link between the telephone line and their fiber to the building building ... in the area Sheffield, Rotherham, Doncaster and Barnsley collectively known as Digital Region ...   more details



  1. Single-pair high-speed digital subscriber line

    SDSL in North America. See also Digital Subscriber Line DSL Asymmetric Digital Subscriber Line ADSL Symmetric digital subscriber line External links http www.itu.int rec T REC G.991.2 en ITU T Recommendation G.991.2 Single pair high speed digital subscriber line SHDSL transceivers Category Digital Subscriber Line Category ITU T recommendations http www.proscend.com Proscend SHDSL Total Solution ...DSL technologies Single Pair High speed Digital Subscriber Line SHDSL is a form of Digital Subscriber Line DSL , a data communications technology that enables faster data transmission over copper telephone line s than a conventional voiceband modem can provide. Compared to ADSL , SHDSL employs frequencies that include those used by traditional Plain old telephone service POTS to provide equal transmit and receive i.e. symmetric data rates. As such, a frequency splitter, or DSL filter microfilter , cannot be used to allow a telephone line to be shared by both an SHDSL service and a POTS service at the same time. Support of symmetric data rates has made SHDSL a popular choice by businesses for PBX , VPN , web hosting and other data services. SHDSL features symmetrical data rates from 192 kbit s to 2,304 kbit s of Payload software payload in 64 kbit s increments for one pair and 384 kbit s to 4,608 kbit s in 128 kbit s increments for two pair applications. The reach varies according to the local loop loop line rate rate and noise conditions more noise or higher rate means decreased reach and may be up to 3,000 meters. The two pair feature may alternatively be used for increased reach applications by keeping the data rate low. Halving the data rate per pair will provide similar speeds ... fr SHDSL id G.SHDSL it Single Pair High speed Digital Subscriber Line pl Symmetric High speed Digital Subscriber Line pt G.SHDSL ru Single pair High speed Digital Subscriber Line fi SHDSL sv Single Pair High speed Digital Subscriber Line tr SHDSL ...   more details



  1. High bit rate digital subscriber line 2

    DSL technologies Refimprove date July 2007 HDSL2 is the 2nd generation of HDSL with a 6dB Noise Margin, put simply it is another way to provision a T 1 line, only this technology relies on fewer wires two instead of four and therefore costs less to set up. http findarticles.com p articles mi qa3649 is 199910 ai n8856852 Source Category Digital Subscriber Line Internet stub ...   more details



  1. Very high speed digital subscriber line 2

    to augment its current Asymmetric Digital Subscriber Line 2 Plus ADSL2 capabilities over time ...DSL technologies Very high speed digital subscriber line 2 VDSL2 is an access technology that exploits the existing infrastructure of copper wires that were originally deployed for plain old telephone service POTS . It can be deployed from central offices, from fibre fed Enclosure electrical cabinet s located near the customer premises, or within buildings. VDSL2 is the newest and most advanced standard of Digital subscriber line DSL broadband wireline communications. Designed to support the wide deployment of triple play telecommunications triple play services such as voice, video, data, high definition television HDTV and interactive gaming, VDSL2 is purported to enable operators and carriers to gradually, flexibly, and cost efficiently upgrade existing xDSL infrastructure. The protocol was standardized as ITU G.993.2 on February 17, 2006. ITU T G.993.2 VDSL2 is an enhancement to G.993.1 VDSL that permits the transmission of asymmetric and symmetric aggregate data rates up to 200  ... Very High Speed Digital Subscriber Line 2 Category ITU T recommendations Category Digital Subscriber Line de Very High Speed Digital Subscriber Line VDSL2 et VDSL2 el Very High Speed Digital Subscriber Line 2 es VDSL2 fr VDSL2 it VDSL2 nl VDSL2 pl Very High Speed Digital Subscriber Line 2 pt VDSL2 ru VDSL2 sk Very High Speed Digital Subscriber Line 2 tr VDSL2 ... in Sept 2010. ref http www.telecomwholesale.co.nz maps ref See also Very High Speed Digital Subscriber Line Broadband Internet access DOCSIS Fiber to the x Passive optical network PON List of device ... line to a roadside cabinet. The cabinets will be linked to Virgin Media backhaul via new fibre laid ... are collectively known as Digital Region Ltd an EU government backed project. The network will offer ... of broadband, video services, internet television and a phone line for 50 to 60 a month. ref http ...   more details



  1. Digital Subscriber System No. 2

    Unreferenced stub auto yes date December 2009 Orphan date December 2009 Digital Subscriber Signalling System No.  2 DSS2 , as the successor to DSS1 , is also a digital signalling protocol D channel protocol used for the Broadband Integrated Services Digital Network B ISDN . Category Integrated Services Digital Network Telecomm stub de Digital Subscriber System No. 2 ...   more details



  1. Digital Subscriber System No. 1

    Unreferenced date December 2009 Digital Subscriber Signalling System No.  1 DSS1 , also known as Euro ISDN or E DSS1 European DSS1 , is a digital signalling protocol D channel protocol used for the Integrated Services Digital Network ISDN . The interface is also called NET3 for Basic rate interface BRI and NET5 for Primary rate interface PRI lines. Can also be called CTR4 . It is defined by ITU T I.411 ETS 300 102 . It supports Bearer Capability, Low Level Compatibility and High Level Compatibility, ANI, DNIS and redirected number signaling in both directions. DSS1 is a pan Europe an standard developed by ETSI . In 1989 , 26 network operators from 20 European countries decided to develop this standard to replace earlier national protocols such as FTZ 1 TR 6 or VN3 . DSS1 has been one of the keys to the success of the Integrated Services Digital Network ISDN within European countries as compared to, for example, the United States U.S. . Non European countries using DSS1 include Australia , Brazil , Iran , India , Israel , New Zealand , Pakistan , Peru , Singapore , South Africa , Sri Lanka , Taiwan , Palestine and the United Arab Emirates . The DSS1 protocol knows four different codesets for information elements. Codeset 0 regards to Q.931 , Codeset 5 to the ETSI standard, Codeset 6 for national applications and Codeset 7 for PBX applications. The most common Codeset is 0 Q.931. Category Integrated Services Digital Network de Digital Subscriber System No. 1 ...   more details



  1. Asymmetric

    wikt Something which is asymmetric displays asymmetry . Specific uses of the term may include Asymmetric relation for information on such relations in mathematics and set theory Asymmetric warfare for information and theories of modern war Asymmetric synthesis in organic synthesis Public key cryptography for information on asymmetric cryptography disambig ...   more details



  1. Digital delay line

    A digital delay line is a discrete element in digital filter theory, which allows a signal to be delayed by a number of samples. If the delay is an integer multiple of samples digital delay lines are often implemented as circular buffer s. This means that integer delays can be computed very efficiently. The delay by one sample is notated math mathrm z 1 math and delays of math N math samples is notated as math mathrm z N math motivated by the role the z transform plays in describing digital filter structures. If a delay is not an integer of a sample additional filters are applied to account for the fraction of delay different from an integer. Hence delay lines with non integer delay are called fractional delay lines . ref Citation last Laakso first Timo I. author link last2 V lim ki first2 Vesa author2 link last3 Karjalainen first3 Matti last4 Laine first4 Unto K. publication date January 1996 date January 1996 title Splitting the unit delay tools for fractional delay filter design periodical IEEE Signal Processing Magazine edition volume 13 issue 1 pages 30 60 publication place place publisher id isbn doi 10.1109 79.482137 oclc url accessdate 2007 08 22 ref Digital delay lines are widely used building blocks in methods to simulate room acoustics , musical instruments and digital audio effects . ref Citation last Smith first Julius O. author link last2 Lee first2 Nelson author2 link publication date August 12 2007 date August 2007 title Computational Acoustic Modeling with Digital Delay url http ccrma.stanford.edu realsimple Delay Delay lines.html accessdate 2007 08 21 ref Digital waveguide synthesis shows how digital delay lines can be used as sound synthesis methods for various musical instruments such as string instruments and wind instruments . Sources reflist Category Digital signal processing electronics stub es L nea de retardo digital ru ...   more details



  1. Digital line graph

    File USGS logo.png thumb USGS Logo A Digital Line Graph DLG is a Cartography cartographic map feature represented in digital Vector graphics vector form that is distributed by the U.S. Geological Survey USGS . DLGs are collected from USGS maps and are distributed in large , intermediate and small scale with up to nine different categories of features, depending on the scale. They come in optional and Spatial Data Transfer Standard SDTS format and are topological structure topologically structured for use in mapping and geographic information system GIS applications Description File Susq sub.png thumb Map produced with DLG data DLGs are normally derived from USGS maps or USGS map related sources. DLGs are distributed at three different scales large scale, which normally correspond to the USGS 7.5 by 7.5 minute, 1 24,000 and 1 25,000 scale topographic quadrangle map series, 1 63,360 scale for Alaska and 1 30,000 scale for Puerto Rico intermediate scale, which are derived from the USGS 30 by 60 minute, 1 100,000 scale map series and small scale, which are derived from the USGS 1 2,000,000 scale sectional maps of the National Atlas of the United States . Large scale DLGs are usually cast on the Universal Transverse Mercator coordinate system UTM , but are sometimes cast on the State Plane rectangular coordinate system. Intermediate scale DLGs are sold in 30 by 30 minute sections that correspond to the east or west half of the 100K quadrangle map, and each of the 30 minute sections is distributed in four 15 by 15 minute cells and is cast on the UTM coordinate system. Small scale ... factsheets fs07896t.pdf USGS Fact Sheet, Digital Line Graphs ref Sources references External links http eros.usgs.gov products map dlg.php USGS Digital Line Graphs http eros.usgs.gov guides dlg.html ..., are available in DLGs Public Land Survey System PLSS , Boundary line Boundaries BD , Transportation ..., the UTM ground coordinate system, and topological topology linkages contained in line, node and area ...   more details



  1. Asymmetric norm

    In mathematics , an asymmetric norm on a vector space is a generalization of the concept of a norm mathematics norm . Definition Let X be a real number real vector space. Then an asymmetric norm on X is a function mathematics function p     X   &rarr   R satisfying the following properties non negativity for all x   &isin   X , p x   &ge   0 Positive definite function definiteness for x   &isin   X , x     0 if and only if p x     p &minus x     0 homogeneous function homogeneity for all x   &isin   X and all &lambda   &ge   0, p &lambda x     &lambda p x the triangle inequality for all x ,  y   &isin   X , p x     y   &le   p x     p y . Examples On the real line R , the function p given by math p x begin cases x , & x leq 0 2 x , & x geq 0 end cases math is an asymmetric norm but not a norm. More generally, given a strictly positive function g     S sup n &minus 1 sup   &rarr   R defined on the unit sphere S sup n &minus 1 sup in R sup n sup with respect to the usual Euclidean norm · , say , the function p given by math p x g x x x , math is an asymmetric norm on R sup n sup but not necessarily a norm. References cite journal last Cobza first S. title Compact operators on spaces with asymmetric norm journal Stud. Univ. Babe Bolyai Math. volume 51 year 2006 issue 4 pages 69&ndash 87 issn 0252 1938 MathSciNet id 2314639 algebra stub Category Linear algebra Category Norms mathematics ...   more details



  1. Asymmetric multiprocessing

    Asymmetric Multiprocessing , or AMP, was a software stopgap for handling multiple CPUs before Symmetric Multi Processing Symmetric Multiprocessing , or SMP was available. Image Asmp 2.gif 250px thumb right Asymmetric Multiprocessing Multiprocessing means more than one CPU in a computer system. The CPU is the arithmetic and logic engine that executes user applications an I O interface such as a GPU, even if it is implemented using an embedded processor, does not constitute a CPU because it does not run the user s application program. With multiple CPUs, more than one user application can run at the same time. All of the CPUs have the same user mode instruction set, so a running job can be rescheduled from one CPU to another. ref http www.bitsavers.org pdf dec pdp11 1174 Introduction To Multiprocessing Jun79.pdf Introduction to Multiprocessing distinguishes &ldquo symmetric&rdquo from &ldquo master slave&rdquo ref Background and History For the room size computers of the 1960s and 1970s, a cost effective way to increase compute power was to add a second CPU. Since these computers were already close to the fastest available near the peak of the price performance ratio , two standard speed ... 10 Software, section 1.4 DECsystem 10 Multiprocessing ref Digital Equipment Corporation offered ... 10 line. DEC also had a multi processor PDP 11 ref http www.bitsavers.org pdf dec pdp11 1174 ... Guide, pages 1 23 and 1 24 the VAX 11 782 is described as an asymmetric multiprocessing system in 1982 ... of Hardware Systems Design . Digital Equipment Corp. Rajkumar Buyya editor High Performance Cluster ... 370 Asymmetric Multiprocessing System General Information Manual, Program Number 360A CX 15X id GH20 ... wiseman pdccs2008.pdf ASOSI Asymmetric Operating System Infrastructure, Proc. 21st Conference ..., Louisiana, pp. 193 198, 2008 Parallel Computing DEFAULTSORT Asymmetric Multiprocessing Category Parallel ... el es Multiprocesamiento Asim trico fr Asymmetric multiprocessing ...   more details



  1. Asymmetric board

    In abstract board game s, an asymmetric board is one in which the game board does not have reflectional symmetry . Category Board games ...   more details



  1. Asymmetric carbon

    An asymmetric carbon atom is a carbon atom that is attached to four different atoms or four different groups of atoms ref Stereochemistry of Organic Compounds Ernest L. Eliel, Samuel H. Wilen ref ref IUPAC definition http goldbook.iupac.org A00479.html ref . Knowing the number of asymmetric carbon atoms, one can calculate the maximum possible number of stereoisomers for any given molecule as follows If n is the number of asymmetric carbon atoms then the maximum number of isomers 2 sup n sup As an example, malic acid has 4 carbon atoms but just one of them is asymmetric File Malic acid2.png 200px example of an asymmetric carbon A tetrose with 2 asymmetric carbon atoms has 2 sup 2 sup 4 stereoisomers File Tetrose.svg 200px 4 asymmetric carbon atoms in an aldohexose An aldopentose with 3 asymmetric carbon atoms has 2 sup 3 sup 8 stereoisomers File Aldopentose.svg 200px 4 asymmetric carbon atoms in an aldohexose An aldohexose with 4 asymmetric carbon atoms has 2 sup 4 sup 16 stereoisomers File Aldolhexose.svg 250px 4 asymmetric carbon atoms in an aldohexose The four groups of atoms attached to the carbon atom can be arranged in space in two different ways that are mirror images of each other, and which lead to so called left handed and right handed versions of the same molecule. Molecules that cannot be superimposed on their own mirror image are said to be Chirality chemistry chiral . References Reflist DEFAULTSORT Asymmetric Carbon Category Stereochemistry de Asymmetrisches Kohlenstoffatom es Carbono asim trico fr Carbone asym trique gl Carbono asim trico nl Asymmetrisch koolstofatoom ...   more details



  1. Asymmetric cut

    Unreferenced date December 2009 Orphan date February 2009 An asymmetric cut is a haircut in which the hair is cut in such a way that the hair does not have left right symmetry and one side is cut or appears to be longer than the other. Talk show host Rosie O Donnell famously adopted a short and somewhat severe version of the asymmetric cut in 2002 after she came out of the closet . Other celebrities who have sported asymmetric hairstyles include singers Cyndi Lauper , Jordan McCoy and Phil Oakey and Davey Havok of AFI band AFI . Reality television star Kate Gosselin has been oft critiqued for her own asymmetrical haircut. See also Asymmetric clothing DEFAULTSORT Asymmetric Cut Category Hairstyles ...   more details



  1. Asymmetric relation

    Unreferenced date December 2009 Asymmetry Asymmetric often means, simply not symmetric. In this sense an asymmetric relation is a binary relation which is not a symmetric relation . That is, math lnot forall a, b in X, a R b Rightarrow b R a math . or equivalently, math exists a, b in X, a R b land lnot b R a math . In some texts the word is given the following stronger definition For all a and b in X , if a is related to b , then b is not related to a . In mathematical notation, this is math forall a, b in X, a R b Rightarrow lnot b R a math . In this sense, a relation is asymmetric if and only if it is both antisymmetric relation antisymmetric and reflexive relation irreflexive . For a transitive relation , asymmetry is equivalent to irreflexivity. For nonempty relations, asymmetry in the second definition given here implies asymmetry in the first sense, but the reverse does not hold. Empty relations are, vacuous truth vacuously , both asymmetric in the second sense only and symmetric. See also Symmetry in mathematics Symmetry Antisymmetric relation DEFAULTSORT Asymmetric Relation Category Mathematical relations cs Antisymetrick relace eo Kontra simetria rilato ja pl Relacja przeciwsymetryczna sk Asymetrick rel cia uk zh ...   more details



  1. Asymmetric synthesis

    File Sharpless Asymmetric Epoxidation Scheme.png right thumbnail 500px Asymmetric synthesis Sharpless epoxidation Asymmetric synthesis , also called chiral synthesis , enantioselective synthesis or stereoselective ... chemistry chirality . ref GoldBookRef title asymmetric synthesis file A00484 ref ref GoldBookRef ... activity. Approaches There are three main approaches to asymmetric synthesis chiral pool synthesis chiral auxiliary chiral auxiliaries asymmetric catalysis In practice, a mixture of all three is often ... in nature, whereas chiral catalysis requires only a catalytic amount of chiral material. Asymmetric induction What many strategies in chiral synthesis have in common is asymmetric induction . The aim ... to the enantiopure center, and these diastereomers react differently. Asymmetric induction can ... pure. Chiral auxiliary One asymmetric induction strategy is the use of a chiral auxiliary , which ..., increasing cost and decreasing yield. Asymmetric catalysis The oldest asymmetric synthesis is the enantioselective ... asymmetric synthesis Small amounts of chiral, enantiomerically pure or enriched catalysts promote ... a Comprehensive Asymmetric Catalysis Jacobsen, Pfaltz, Yamamoto , Springer, 1999 b Catalytic Asymmetric ... title Asymmetric Heterogeneous Catalysis year 2006 journal Angewandte Chemie International Edition volume 45 issue 29 pages 4732 4762 doi 10.1002 anie.200504212 pmid 16802397 ref ref Asymmetric ... asymmetric catalyst. This experimental catalyst was employed in an asymmetric hydrogenation ... for the Monsanto Company company in an asymmetric hydrogenation step in the industrial production of L DOPA Image L DOPA synthesis2.png 550px Asymmetric L DOPA synthesis In the same year and independently ... by copper chelates Asymmetric carbenoid reactions journal Tetrahedron journal Tetrahedron volume 24 ... ligand was disappointingly low 6 . Image AsymmetricSynthesisNoyori.png 400px Asymmetric cyclopropanation Examples of asymmetric catalysis include BINAP , a chiral phosphine , used in combination with compounds ...   more details



  1. Asymmetric Publications

    Asymmetric Publications is a video game developer and video game publisher publisher . It is responsible for the popular browser game web based role playing game Kingdom of Loathing . Currently Asymmetric is run by Zack Johnson and Josh Nite who are known as Jick and Mr. Skullhead, respectively, in the game . Employees of the company are known as the Asymmetric Team. As a result of the popularity of the game, Asymmetric currently supports Johnson, Nite, and five other individuals as full time employees. ref cite web url http www.comicsbulletin.com pb 117648256288713.htm title An Adventurer Is You The Zack Johnson Kingdom of Loathing Interview author Park Cooper publisher Comic Bulletin archiveurl http www.webcitation.org 5w9mdX3vS archivedate 31 January 2011 ref In the past, Asymmetric Publications hosted various games and other attractions, including Infinity Plus One , an online fortune teller Bee On Drugs , a bee who talks about the most random things imaginable and Krakrox the Barbarian , a game widely noted as the precursor to the popular Kingdom of Loathing . A running gag was that the Asymmetric Publications website was not updated for almost six years after the announcement of a fun new game, Kingdom of Loathing . In late 2008, it started to be updated again. It has been announced that a new game is in development, but so far no details or release dates have been given. References reflist External links http asymmetric.net Asymmetric.net http twitter.com asym Asymmetric s Twitter feed http asymmetric.net krakrox krakrox.html Krakrox the Barbarian http www.kingdomofloathing.com Kingdom of Loathing Homepage videogame company stub Category Video game developers Category Video game publishers ...   more details



  1. Asymmetric Follow

    Asymmetric Follow is a core pattern for Web 2.0 , in which a social network user can have many people following them without a need for reciprocity. Asymmetric Follow is unlike email for example, which tends to be within small groups, with all users knowing each other newsletters are a clear exception here . ref name monkchips cite web url http www.redmonk.com jgovernor 2008 12 05 assymetrical follow a core web 20 pattern title Asymmetrical Follow A Core Web 2.0 Pattern author James Governor date 2008 12 05 accessdate 2010 11 21 publisher redmonk.com ref It is also known as Asynchronous Follow ref name insidefacebook cite web url http www.insidefacebook.com 2010 09 03 facebook tests new subscribe to option for friends and pages title Facebook Tests New Subscribe To Option for Friends and Pages author Eric Eldon date 2010 09 03 accessdate 2010 11 21 publisher ref or sometimes Asymmetric friendship . ref name mashable cite web url http mashable.com 2010 09 01 itunes ping title iTunes 10 and Ping Are Here, Bringing Mixed First Impressions author Jolie O Dell date 2009 05 10 accessdate 2010 11 21 publisher Mashable ref An implementation of asymmetric follow can be seen in the use of Twitter ref name oreilly cite web url http radar.oreilly.com 2009 05 goodreads vs twitter asymmetric follow.html title Goodreads vs Twitter The Benefits of Asymmetric Follow author Tim O Reilly date 2009 05 10 accessdate 2010 11 21 publisher ref When you see a social network where someone has 5000 followers and only follows 150 back that s Asymmetric Follow. ref name monkchips In September 2010 Facebook started experimenting with a similar feature, which Facebook calls Subscribe To. ref name insidefacebook ref name techcrunch cite web url http techcrunch.com 2010 09 03 facebook project dance party title Project Dance Party Facebook s Secret Twitter Like Follow Feature author MG Siegler date 2010 09 03 accessdate 2010 11 21 publisher TechCrunch ref References Reflist Category Real time web Category ...   more details




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