What is the Lan Technology?
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A local area network (LAN) is a computer network covering a local area, like a home, office, or group of buildings. Current LANs are most likely to be based on switched IEEE 802.3 Ethernet running at 10, 100 or 1,000 Mbit/s or on Wi-Fi technology .\n\nThe defining characteristics of LANs in contrast to WANs (wide area networks) are: their much higher data rates; smaller geographic range; and that they do not require leased telecommunication lines.\n\nTechnical aspects\nAlthough switched Ethernet is now most common at the physical and data link layers, and TCP/IP as a protocol, historically many different options have been used (see below), and some continue to be popular in niche areas. Larger LANs may have redundant links, and routers or switches capable of using spanning tree protocol and similar techniques to recover from failed links. LANs may have connections to other LANs via routers and leased lines to create a WAN (Wide Area Network). Most will also have connections to the large public network known as the Internet, and links to other LANs can be 'tunnelled' across this using VPN technologies.
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Advantages of LAN:\n\n1. Easier to maintain than a WAN\n\n2. More secure\n\n3. Better connectivity\n\n4. Often easier to configure than a WAN\n\nDisadvantages of LAN:\n\n1. You often only have 1(one) access point.\n\n2. It's limited on who can use it\n\n3. When one computer goes down they all go down(depending on configuration)\n\n\nAdvantages of WAN:\n\n1. Broader reception area.\n\n2. More recievable connections available\n\n3. Portablility (if you use a laptop)\n\nDisadvantages of WAN\n\n1. Not as much security as a LAN\n\n2. If the Hub goes down your network goes down\n\n3. Less reception with a WAN than a LAN\n\n\nThese are just some things I could think of i'm sure others can/will offer more info that is probably better than mine.
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LAN (Local Area Network)\n-Is a network that's usually within an area of 1km.\n-Privately owned N/Ws\n-Widely used to connect PCs & workstations in offices & factories to share resources & exchange info\n-They are disyinguished from other kinds of N/Ws by 3 characteristics: size, transmission technology & topology.\n-Often use transmission technology consisting of a single cable to which all machines are attached.\n-Have speeds of upto 100mbps\n\nMAN (Metropolitan Area N/W)\n-Is simply a larger version of LAN & can be within a city/upto an area of 10kms.\n-Might cover a group of nearby corporate offices & might be private/public.\n-Can support both data & voice & might even be related to the local cable TV N/W\n\nWAN (Wide Area N/W)\n-Spans a large geographical area, often a country/continent.\n-The Internet is a WAN\n-A WAN contains a collection of machines intended for running user programs\n-Transmission speed is low & error rate is high\n-Connected using telephone cables/satellites \n-Are public
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You are going to have to be much more specific in your question.  Are you referring to a LAN operating system, just connecting a few PC's together, or a multi-user application software (and in this case, what application?)
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internet (Lower case i) \nAny time you connect 2 or more networks together, you have an internet - as in inter-national or inter-state. \n\n\nInternet (Upper case I) \nThe vast collection of inter-connected networks that are connected using the TCP/IP protocols and that evolved from the ARPANET of the late 60's and early 70's. \nThe Internet connects tens of thousands of independent networks into a vast global internet and is probably the largest Wide Area Network in the world.\n\nARPANet -- (Advanced Research Projects Agency Network) \nThe precursor to the Internet. Developed in the late 60's and early 70's by the US Department of Defense as an experiment in wide-area-networking to connect together computers that were each running different system so that people at one location could use computing resources from another location.\n\nTCP/IP -- (Transmission Control Protocol/Internet Protocol) \nThis is the suite of protocols that defines the Internet. Originally designed for the UNIX operating system, TCP/IP software is now included with every major kind of computer operating system. To be truly on the Internet, your computer must have TCP/IP software.\n\nUnix \nA computer operating system (the basic software running on a computer, underneath things like word processors and spreadsheets). Unix is designed to be used by many people at the same time (it is multi-user) and has TCP/IP built-in. It is the most common operating system for servers on the Internet. \nApple computers' Macintosh operating system, as of version 10 ("Mac OS X"), is based on Unix.
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LAN = Local Area Network - Usually used in a single office\nWAN = Wide Area Netowrk - Multiple locations share the same netork with the use of T1's hubs and routers.\n\nThey are pretty much the same.
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Point-to-Point Protocol over Ethernet\n\nDynamic Host Configuration Protocol\n\nand \n\nAsynchronous Transfer Mode
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I have no idea.  This is the computer networking area.  Please resubmit your question in the appropriate area.  Thanks.
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network, in computing, two or more computers connected for the purpose of routing, managing, and storing rapidly changing data. A local area network (LAN), which is restricted by distances of up to one mile, and a metropolitan area network (MAN), which is restricted to distances of up to 60 miles, connect personal computers and workstations (each called a node) over dedicated, private communications links. A wide area network (WAN) connects large numbers of nodes over long-distance communications links, such as common carrier telephone lines, over distances ranging from that between major metropolitan centers to that between continents. An internet is a connection between networks. The Internet is a WAN that connects thousands of disparate networks in the U.S., Canada, Europe, Asia, and elsewhere, providing global communication between nodes on government, educational, and industrial networks. Networks allow for resource sharing (e.g., multiple computers sharing one printer), data sharing, and communication or data exchange (e.g., electronic mail).\n\n\n--\nhi, i have noticed that you are not voting for the answers that you recieve. I think that is good, as that ways, you encourage people to coem back and answer you, as 1. you help them make points by voting for their answers, 2. everyone wants to know what was considered the best answer by you, though it might not be their own.\nSo, do that. keep asking and answering!\n--
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Short answer:\n\nA router is an intelligent device that allows a central connection to an internet connection.  Basically connects a LAN to the internet.  It also provides many internet like services from that single connection to the PC's connected to it.\n\nA hub is a dumb networking device that only passes all traffic from one computer to all computers connected.  It does not route the traffic in any way.  It's for local area networks only.\n\nThere is also a switch which does a small amount of traffic control in a local area network.  This helps make connections in the LAN faster with 3 or more computers.
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2 or more computers in a networks can be connected together using cables or via wireless (Wi-fi)technology.\nLike all other technologies, wifi has +s and -s.\nto get more technical and detailed information you can go to http://www.cnet.com to read more.
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router - this is often a bundle of services for building a local area network.  It will contain a gateway or bridge to an internet service provider, and contain a switch for internet sharing.  It will also contain a DHCP server, which assigns IP addresses to devices on the LAN/\n\nswitch - an Ethernet switch works like a hub, but automatically configures that port for the IP parameters that is needed by that port.   So if you are using a cross-over cable to connect to a computer, the switch will automatically cross-back, so it works.  This is the NO BRAINER HUB.\n\nhub - a network hub connects various devices to a network.  But it is a dumb device, so it is up to the user to plug in the proper patch cable or cross-over cable.\n\ngateway - in general, a gateway is a device that connects a local area network to a wide area network or internet service.\n\nbridge - this is a general term to describe the connection of multiple devices and protocols to direct network communication.\n\nAs you can see, a router does it ALL.  I recommend that you use a high speed switch if you want to expand the number of ports that your router provides.  \n\nOH RATZ....  I started fooling around with this stuff at a whopping 5MHz back in 1983 for the stock exchanges.  I rewrote some TCP/IP protocol stuff before most geeks ever heard of it.   It was all Digital Equipment and Intel that were banging heads in those days. \n\nGood luck and Happy Computing!
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You have to ask the right question.\n\nHow do your users use the LAN they are on? Server based applications? Internet access (ie. Mail, browsing, web apps, etc?)\n\nIf they use server based apps then file sharing is more important.\nIf they use the Inet then network apps is more important.\n\nIf you are the SysAdmin it is your job to make everything work for your user community. They are your customers!
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router - Links a local network to a remote network. For example, your company's network probably uses a router to connect to the Internet. Can be used to connect a LAN to a LAN, a WAN to a WAN, or a LAN to the Internet.\n\nAlso - A device that forwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISP’s network. Routers are located at gateways, the places where two or more networks connect.\n\nRouters use headers and forwarding tables to determine the best path for forwarding the packets, and they use protocols such as ICMP to communicate with each other and configure the best route between any two hosts.\n\nVery little filtering of data is done through routers\n\nswitch - A device to segment networks into different subnets. Segmenting the network into different subnets keeps one network from overloading with traffic.\n\nAlso - In networks, a device that filters and forwards packets between LAN segments. Switches operate at the data link layer (layer 2) and sometimes the network layer (layer 3) of the OSI Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs.\n\nSo by definition, only one of those devices are used to "segment" a collision domain.
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A wireless LAN or WLAN is a wireless local area network that uses radio waves as its carrier: the last link with the users is wireless, to give a network connection to all users in the surrounding area. Areas may range from a single room to an entire campus. The backbone network usually uses cables, with one or more wireless access points connecting the wireless users to the wired network.
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NOCs \n\nNetwork Operations Center (NOC) \n\n\n\nInternet2 is a consortium being led by 207 universities working in partnership with industry and government to develop and deploy advanced network applications and technologies, accelerating the creation of tomorrow's Internet. Internet2 is recreating the partnership among academia, industry and government that fostered today´s Internet in its infancy. The primary goals of Internet2 are to: \n\nCreate a leading edge network capability for the national research community \nEnable revolutionary Internet applications \nEnsure the rapid transfer of new network services and applications to the broader Internet community.
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Ethernet is a large and diverse family of frame-based computer networking technologies for local area networks (LANs). The name comes from the physical concept of the ether. It defines a number of wiring and signaling standards for the physical layer, two means of network access at the Media Access Control (MAC)/Data Link Layer, and a common addressing format\n\nToken ring local area network (LAN) technology was developed and promoted by IBM in the early 1980s and standardized as IEEE 802.5 by the Institute of Electrical and Electronics Engineers. Initially very successful, it went into steep decline after the introduction of 10BASE-T for Ethernet and the EIA/TIA 568 cabling standard in the early 1990s. A fierce marketing effort led by IBM sought to claim better performance and reliability over Ethernet for critical applications due to its deterministic access method, but was no more successful than similar battles in the same era over their Micro Channel architecture. IBM no longer uses or promotes token ring. Madge Networks, a one time competitor to IBM, is now considered to be the market leader in token ring.\n\n\nFiber-Distributed Data Interface (FDDI) provides a standard for data transmission in a local area network that can extend in range up to 200 kilometers (124 miles). The FDDI protocol uses as its basis the token ring protocol. In addition to covering large geographical areas, FDDI local area networks can support thousands of users. As a standard underlying medium it uses optical fiber (though it can use copper cable, in which case one can refer to CDDI). FDDI uses a dual-attached, counter-rotating token-ring topology.\n\nhttp://en.wikipedia.org/wiki/Ethernet#Ethernet_frame_types_and_the_EtherType_field\nhttp://en.wikipedia.org/wiki/Token_ring#Token_frame\nhttp://en.wikipedia.org/wiki/Fiber_distributed_data_interface