| 释义 |
LAN
 LANtop to bottom: bus, star, and ring network configurationsLAN L0031950 (lăn)n. A system that links together electronic office equipment, such as computers and printers, and forms a network within an office, building, or group of buildings
[l(ocal) a(rea) n(etwork).]LAN abbreviation for (Computer Science) local area network lo′cal-ar′ea net′work
n. 1. a system for linking private telecommunications equipment, as in a building or cluster of buildings. 2. a computer network confined to a limited area, linking esp. personal computers so that programs, data, peripheral devices, and processing tasks can be shared. Also called LAN. Thesaurus| Noun | 1. |  LAN - a local computer network for communication between computers; especially a network connecting computers and word processors and other electronic office equipment to create a communication system between officeslocal area networkbusbar, bus - an electrical conductor that makes a common connection between several circuits; "the busbar in this computer can transmit data either way between any two components of the system"computer network - (computer science) a network of computersethernet - a type of network technology for local area networks; coaxial cable carries radio frequency signals between computers at a rate of 10 megabits per secondWiFi, wireless fidelity, wireless local area network, WLAN - a local area network that uses high frequency radio signals to transmit and receive data over distances of a few hundred feet; uses ethernet protocol |
TranslationsLAN
LAN[lan] (computer science) local-area network LAN(Local Area Network) A communications network that is typically confined to a building or premises. A LAN is a local network, whereas a WAN is a wide area network that spans long distances (see WAN). Every wireless router has four LAN ports, which creates a small local network in the home or office (see wireless router).
The "clients" in a LAN are the user's computers running Windows, Mac or Linux, while the "servers" hold programs and data shared by the clients. Servers come in a wide range of sizes from PC-based servers to mainframes (see server).
The Transport
Data transfer over a LAN is managed by the TCP/IP transport protocol, and the physical transmission is handled by Ethernet over twisted pair or optical fiber cables. Using Wi-Fi, Ethernet's wireless counterpart, laptops and mobile devices connect without cables. See twisted pair, optical fiber, TCP/IP and Ethernet.
Thick and Thin Clients
In a company LAN, the client machines are mostly Windows PCs; however, Macs are also widely used. Each PC or Mac contains a variety of installed applications. These "thick" clients are the norm; however, some organizations use "thin" clients, which perform limited business processing. For example, a Windows PC can be turned into an input/output terminal to a server (see Remote Desktop Services). See thin client and client/server.
The Network OS
The software that enables data sharing is the network operating system in the servers, typically running Windows, Linux or Unix. In large organizations, multiple dedicated servers are used. A component part resides in each client operating system, which allows the application in the client to read and write data from the server.
Client machines can also function as a server, allowing other users access to data in folders configured as "sharable." These "peer-to-peer" networks are easier to manage, but dedicated servers provide better performance and handle high transaction volume.
 | | Clients and Servers in a LAN |
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| This shows the private employee-facing side and the public-facing site. In large companies, multiple servers are used for each type of service. Today, it is uncommon to see a remote access server for dial-up connections. |
 | | Software in a Network Client |
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| These are examples of common applications found in a user's machine. Printers may be connected to clients or servers wired or wireless (see print server). |
 | | Software in a Network Server |
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| These are the common services in a network server. |
LAN
LAN Local area network Informatics A computer network confined to a limited area, usually of the same floor or building. See Ethernet. Cf Internet, WAN. LegalSeeBridgeLan
LanA Burmese unit of length equivalent to 1.8288 meters.LAN see LOCAL AREA NETWORK.LAN
| Acronym | Definition |
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| LAN➣Local Area Network | | LAN➣Lymphadenopathy | | LAN➣Local Access Network | | LAN➣Local Access Number | | LAN➣Lembaga Administrasi Negara (Indonesian state administration agency) | | LAN➣Líneas Aéreas Nacionales (Chile's national airline) | | LAN➣Laboratory for Advanced Networking (various schools) | | LAN➣Life Association News | | LAN➣Local Apparent Noon | | LAN➣Lansing, MI, USA - Capital City Airport (Airport Code) | | LAN➣Library Advocacy Now (Canada) | | LAN➣Literacy Access Network (Toronto, Canada) | | LAN➣Laboratory Automation News | | LAN➣Line Amplifier Node (Ciena) | | LAN➣Lansoprozole | | LAN➣Latin American Network Airlines (Chile) | | LAN➣Language Association of Nigeria | | LAN➣Learning Agency Network (Germany) |
LAN
Synonyms for LANnoun a local computer network for communication between computersSynonymsRelated Words- busbar
- bus
- computer network
- ethernet
- WiFi
- wireless fidelity
- wireless local area network
- WLAN
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