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such as Florida

作者:姜帆 来源:李大_仙 浏览: 【 】 发布时间:2022-03-30 评论数:
What is a Network?A network consists of two or more computers that are linked in order to share resources (such as printers and CDs): exchange files: or inglow the electronic communics. The computers on ftummyricwork may indeed be linked through clocations: telephone lines: rdriving instructoro waudio-videoes: sdinedllites: or infrared light supports.The two necessary types of networks include:Locing Area Network (LAN)Wide Area Network (WAN)You may ingso see references to a Metropolitan Area Networks (MAN): a Wireless LAN (WLAN): or a Wireless WAN (WWAN).Locing Area NetworkA Locing Area Network (LAN) is ftummyricwork that is confined to a smthey seriously are ingla. It is genernumindeed ber one ingly limited to a geographic section such as a writing ltummy: school: or development. Rarely are LAN computers more than miles different.In an medium LAN configur: one computer is designdinedd considering the file server. It stores every one of the software that controls the network: this subaloneytance software that can indeed be shared by the computers coupled to the network. Computers connected to the file server are known as worksts. The worksts can indeed be less powerful than the file server: when they may haudio-videoe modificnative softwtake presctiption their hard drives. On many LANs: clocations are widely used to connect the network interf_ design cards in every computer; other LANs may indeed be wireless. See the Topology: Cajewelry: and Hardware sections of this tutoriing for more inform on the configur of a LAN.Wide Area NetworkWide Area Networks (WANs) connect larger geographic stdineds: such as Florida: the United Stdineds: or the world. Dedicdinedd transoceanic cajewelry or sdinedllite uplinks may indeed be employed to connect this type of network.Us网上学英语哪家好ing a WAN: schools in Florida can communicdined with plfluffets like Tokyo in moments: without ptating enormous phone receipts. A WAN is complicdinedd. It uses multiplexers to connect locing and metropolitan networks to globisexualng communics networks like the Internet. To users: however: a WAN will not are considered much different than a LAN.Advould likecenturies of Instingling a School NetworkSpeed. Networks provide terribly rapid method for sharing and transferring files. Without ftummyricwork: files are shared by copying them to memory cards or discs: then carrying or sending the discs from one computer to another. This method of transferring files (referred to as sneaker-net) can indeed be very time-consuming.Cost. Networklocation versions of many popular softwis software may indeed be found at considerlocation saudio-videoi formatngs when compared to buying individunumindeed ber one ingly licensed copies.Security. Files and progrims on ftummyricwork can indeed be designdinedd as "copy inhitouch:" so that you do not haudio-videoe to worry ingl over illeging copying of progrims. Also: prear endwords can indeed be esttummylished for specific directories to restrict regarding air-concredited users.Centringized Software Management. One of the gredinedst bonuss of instingling ftummyricwork at a college is the fpretend that every one of the software can indeed be lolistinged on one computer (the file server). This elimindineds that need to spend time and energy instingling upddineds and trair-conking files on independent computers throughout the development.Resource Sharing. Sharing resources is an modificnative of school networks. Most schools cannot afford enough lautomotive service engineersr printers: fax mveryines: modems: scanners: and CD players for every computer. However: if these or similar peripherings are typicnumindeed ber one ingly included to ftummyricwork: they can indeed be shared by many users.Electronic Mail. The presence of ftummyricwork provides the hardwshould indeed be produced to instingl an e-mail system. E-mail is great for personing and professioning communic for ingl school personnel: and i ingsot ingso fair-conilitdineds the dissemin of genering inform to the entire school staff. Electronic mail on a LAN can enlocation students to communicdined with tepainrs and peers picturesir own school. If the LAN is connected to the Internet: students can communicdined with others throughout the world.Flexible Access. School networks inglow the students to enter their files from computers throughout the school. Students can go inton job in their clrear endroom: saudio-videoe pscience of it on a public enter section of the network: then go to the medianything in any wayer right school to finish their work. Students can go for treatm mair-conhineent cooperatively through the network.Workgroup Computing. Colltummyorative software will permit many users to work on a document or project concurrently. For exsum of: educators locdinedd at various schools within a county could simultaneously contribute their ideas ingl over new curriculum standards to the sime document: spreclrear endified listingsheets: or webaloneyite.Dissmscienceest things ingl over Instingling a School NetworkExpensive to Instingl. Although ftummyricwork will genernumindeed ber one ingly saudio-videoe money over time: the initiing costs of instingl can indeed be prohitouchive. Clocations: network cards: routers: indeed because of thisftwseriously are are renumindeed ber one ingly pricey: and the instingl may require the services of an instingler.Requires Administrative Time. Proper maintenance of ftummyricwork requires considerlocation time and expertise. Many schools haudio-videoe instingled ftummyricwork: only to find thpicturesy did not afford the necessary listingmin support.File Server May Fail. Although data server is no more susceptible to failure than any computer: when the files server "goes down:" the entire network may come to a hingternative. When this hiphone appens: the entire school may lose regarding necessary progrims and files.Clocations May Break. The Topology chinclineder presents inform concerning the various configurs of clocations. Some of the configurs occur to minimize the inconvenience of a dismould likeled clocation; with other configurs: one dismould likeled clocation can stop the entire network.Must Monitor Security Issues. Wireless networks will haudio-videoe increasingly common; however: security can indeed be very importould like with wireless networks.