webster's new world hacker dictionary
... system software controls, passwords, and higher-risk system access; giving access to files and documents and controlling remote user access; monitoring how the system is accessed and used; securing ... programs to search areas on the Internet in order to gather lists of email addresses from a number of sources, including chat rooms, domain names, instant message users, message boards, news groups, ... applications.These visionaries were right The Sun Microsystem servers and workstations increasingly replaced older computer systems such as the VAX and other time-sharing systems in corporations and...
Ngày tải lên: 25/03/2014, 12:13
... access link available for data transmission access service A service that provides access to a network.Access services include residential lines, business lines, and PBX trunks for access to ... tandem switches • Signal Transfer Points (STPs): Packet switches that route signaling and control messages between SSPs and SCPs, and between STPs • Service Control Points (SCPs): Nodes that ... and ISDN 1+ Dialing Synonymous with Direct Distance Dialing (DDD) See DDD 1-persistent carrier sense multiple access (1-Persistent CSMA) See CSMA 1-Persistent CSMA (1-Persistent Carrier Sense Multiple...
Ngày tải lên: 14/08/2014, 09:20
... Transmission Systems, Switching Systems, Military Systems, Computer Technology and Information Systems, and Business Information Systems Programs The Bell System Operating Companies comprises 24 ... processor-intensive in terms of compression and decompression See also compression asymmetric digital subscriber line (ADSL) See ADSL asynchronous From Latin and Greek origins, asynchronous translates ... control: Signaling System (SS7) supports B-ISDN, just as it supports narrowband ISDN (N-ISDN) • Switching and multiplexing: Asynchronous transfer mode (ATM) • Transmission: SDH/SONET fiber optics transmission...
Ngày tải lên: 14/08/2014, 09:20
websters new world telecom dictionary phần 3 pdf
... uses both sidebands at full power Single sideband (SSB) transmission suppresses one of the sidebands See also AM, amplitude, carrier, frequency, modulation, sideband, SSB, and VSB DSF (Dispersion-Shifted ... transmits request to send (RTS) messages to the satellite until it responds with a clear to send (CTS), at which time the message transmission ensues See also DAMA A conductor (pin) used on serial ... transmits request to send (RTS) messages to the satellite until it responds with a clear to send (CTS), at which time the message transmission ensues DAMA allows several carriers, and perhaps a...
Ngày tải lên: 14/08/2014, 09:20
websters new world telecom dictionary phần 4 pps
... compression can be either lossless or lossy in nature See also compression, fractal, lossless compression, lossy compression, transforms, vector quantization, and video fractional T1 (FT1) See ... See SSID extended superframe (ESF) See ESF Extended TACS (ETACS) See ETACS Extended Total Access Communications System (ETACS) See ETACS Extensible Markup Language (XML) See XML Extensible Messaging ... fiberglass Also known as spun glass, fiberglass is a composite of extremely fine fibers of glass Invented in 1938 by Russell Games Slayter of Owens-Corning for use as insulating material, the raw spun...
Ngày tải lên: 14/08/2014, 09:20
websters new world telecom dictionary phần 5 ppt
... I-3 Class D addresses are reserved for multicast purposes and Class E addresses are reserved for future use Table I-3: IPv4 Address Classes Class Address Range Networks per Class Hosts per Network ... available host addresses, although no more Class A addresses are being assigned and virtually all Class B addresses have already been assigned.The user organization assigns the host address numbers internally ... Speed Downlink Packet Access (HSDPA) See HSDPA High Speed Uplink Packet Access (HSUPA) See HSUPA high-tier In wireless telecommunications, referring to systems, such as cellular radio systems,...
Ngày tải lên: 14/08/2014, 09:20
websters new world telecom dictionary phần 6 pptx
... to the Earth s surface, so are referred to as mobile satellite systems (MSSs), as opposed to the fixed satellite systems (FSSs) in geostatic orbit See also FSS, GEO, MEO, MSS, and satellite LER ... transmission systems (FOTS) in long haul applications employ semiconductor diode lasers, generally Fabry-Perot lasers or distributed feedback (DFB) lasers Short haul transmission systems such as those ... Orbit) satellites not remain in a fixed position relative to the Earth s surface, so are referred to as mobile satellite systems (MSSs), as opposed to the fixed satellite systems (FSSs) in geostatic...
Ngày tải lên: 14/08/2014, 09:20
websters new world telecom dictionary phần 7 doc
... (NFAS) See NFAS non-line-of-sight (NLOS) See NLOS nonpersistent carrier sense multiple access (Nonpersistent CSMA) See CSMA Nonpersistent CSMA (Nonpersistent Carrier Sense Multiple Access) See CSMA ... (PoE) See PoE power sourcing equipment (PSE) See PSE p-persistent carrier sense multiple access (P-Persistent CSMA) See CSMA P-Persistent CSMA (P-Persistent Carrier Sense Multiple Access) See CSMA ... United States, based on Wireless Access Communication System (WACS), which subsequently was modified to an industry standard known as Personal Access Communications Services (PACS) PCS derives 32...
Ngày tải lên: 14/08/2014, 09:20
websters new world telecom dictionary phần 8 potx
... overhead See also circuit, data, overhead, signaling and control, and transmission rate signaling speed See signaling rate Signaling System (SS7) See SS7 signal-to-noise ratio (SNR) See SNR silence suppression ... encryption single-line digital subscriber line (SDSL) See SDSL single-line DSL (SDSL) See SDSL single-mode fiber (SMF) See SMF single number dialing Also known as store locator service, a service ... Organization for Standardization) has adopted QSIG as Private Signaling System No (PSS1) See also CCS, ISDN, ISO, Q.931, and Q series Q Signaling (QSIG) See QSIG quality of service (QoS) See QoS quartet...
Ngày tải lên: 14/08/2014, 09:20
websters new world telecom dictionary phần 9 doc
... compression, a process that is equally time-consuming and processor-intensive in terms of compression and decompression See also compression symmetric digital subscriber line (SDSL) See SDSL symmetric ... circuit switching system See also SxS Strowger switch Step-by-step (SxS) switch See SxS structured wiring plan A comprehensive, documented plan for inside wire and cable systems in new building construction, ... logical subnetworks by subdividing the host address into a subnetwork address and host address Routers establish borders between subnets See also IP, router, and subnet mask subnet mask In Internet...
Ngày tải lên: 14/08/2014, 09:20
websters new world telecom dictionary phần 10 pdf
... less expensive rollabout system, or a desktop PC–based system Regardless of its specific nature, a videoconferencing system consists of cameras, monitors, video boards, microphones, speakers, ... Personal Communications Services (PCS) See also cordless telephone and PCS WAIS (Wide Area Information Service) A UNIX-based system of servers that enables users to specify the databases requested ... Smooth, periodic images are best compressed using other methods.Wavelet compression can be either lossless or lossy in nature See also compression, lossy compression, transform, and video W band...
Ngày tải lên: 14/08/2014, 09:20
John Wiley And Sons Webster's New World - Essential vocabulary
... craftsman is that the latter is assiduous [-ly adv., -ness n.] [Syn busy] assist (uh SIST) vt to aid; give help to; to work as a helper —n helping someone to something • Dawn likes to assist her ... when it is read Trademarks: Wiley, the Wiley Publishing logo ,Webster s New World, the Webster s New World logo, and all related trademarks, logos, and trade dress are trademarks or registered trademarks ... e tasteful artistic f evaluate artwork g element ascetic h debate ascribe i proud 10 aspect j dry 11 assert k sculptor 12 assess l noble assiduous (uh SID yoo uhss) adj gone about with constant...
Ngày tải lên: 05/10/2012, 09:47
John Wiley And Sons Webster''s New World - Essential vocabulary_A -2
... relieve asperity d assert aspiration e passion assail f primitive tool assimilation g harshness assuage h enunciate aver i assault B baste (BAYST) vt to sew with long, loose stitches to keep ... both tips to the opposite sides of a glass, the glass s outside diameter can be measured • Disk brakes bring a car to a stop by the calipers pressing their pads against the captive rotors camouflage ... expectations [-ly adv.] conspirator (kuhn SPEE rit er) n one who conspires; one who acts with others to plan a crime • Cassius and Brutus were the two most famous conspirators in the assassination...
Ngày tải lên: 01/11/2013, 14:20
John Wiley And Sons Webster''s New World - Essential vocabulary_A
... craftsman is that the latter is assiduous [-ly adv., -ness n.] [Syn busy] assist (uh SIST) vt to aid; give help to; to work as a helper —n helping someone to something • Dawn likes to assist her ... e tasteful artistic f evaluate artwork g element ascetic h debate ascribe i proud 10 aspect j dry 11 assert k sculptor 12 assess l noble assiduous (uh SID yoo uhss) adj gone about with constant ... column that means most nearly the same thing assiduous a feign assist b posture associate c crafty assume d reach assumption e quality astute f combine athlete g courtesy attain h unusual attention...
Ngày tải lên: 01/11/2013, 14:20
John Wiley And Sons Webster''s New World - Essential vocabulary_B
... nearly the same thing congruous a composed connection b effect consciousness c scornful consensus d simultaneous consequence e build consider f stare at consist g taint construct h suitable contaminate ... was customary at Vanessa s workplace to discuss plans for the weekend during the water-cooler conversations • Representatives of Russia and Japan have conversations now and again over Russia s ... connections are made by sticking a plug into a wall outlet consciousness* (KON shuhs nes) n the state of being aware; awareness of one s own feelings or one s surroundings; the totality of one s thoughts,...
Ngày tải lên: 01/11/2013, 14:20
John Wiley And Sons Webster''s New World - Essential vocabulary_D -2
... microbes are usually attacked by the body s defenses when their foreignness is recognized • Westerners’ ears have difficulty with the foreignness of Asian music [Syn extrinsicness] forestall (for STAWL) ... correct disinter i lament 10 disinterestedness j dissatisfaction 11 disputatious k small 12 dissonance l expend D: GRE Words 273 distillation (DIS til AY shin) n a process by which a liquid is vaporized, ... phrase that is less expressive substituted for a more expressive one to lessen its impact (the remains rather than the corpse); the use of such a word • The “dearly departed” is a euphemism for...
Ngày tải lên: 01/11/2013, 14:20
John Wiley And Sons Webster''s New World - Essential vocabulary_D
... 130-decibel sound can cause actual physical pain • Loss of electromagnetic energy as it passes through transmission lines is measured in decibels, with a loss of dBs equal to half the strength decline ... DaVinci s Last Supper depicts a Passover seder • A portrait artist will depict a likeness of you, for a fee • The sports section of today s newspaper depicts a detailed account of yesterday s games, ... Hardness distinguishes real diamonds from fake ones • The Dewey Decimal System helps us to distinguish a book by its cover • “The distinguished senator from (your state)” is a title of rank and respect...
Ngày tải lên: 01/11/2013, 14:20
John Wiley And Sons Webster''s New World - Essential vocabulary_E
... International law is something that exists in essence, although it is not codified • Humor is the essence of satire and of satirical pieces • Oddly, a certain nastiness is the essence of satirists • Vanilla ... Beethoven expresses great joy in his ninth symphony Steven gave Leonard express permission to use his tools Express regulations govern the registration of handguns The express train skips many of ... One s spouse shoud be one s exclusive soul mate The golf course is for the exclusive use of its members Sandy Hook s beach is for the exclusive use of people named Sandy The country club s exclusive...
Ngày tải lên: 01/11/2013, 14:20