Local Area Network or LAN is a computer information system used to enter, store, retrieve, and evaluate data in a localized area. Examples of a localized area would be a college campus, a hospital, a large insurance company, a bank, or a production manufacturing facility. I will present a LAN in a production process.
The LAN is driven by a mainframe computer, connected to personal computer workstations throughout the process. Process parameters, characteristics, and test results are entered into spreadsheet software in the workstation computer. The data is stored on the mainframe computer that works like an additional hard drive. The data is then accessible and retrievable to the support team for evaluation and trace ability. .
The advantage of the LAN is timely data entry and easy, real-time, accessibility. In the past data was processed manually in awkward logbooks and stored in areas that were costly to keep up and not readily available.
An example of the production process LAN would be the manufacturing of widgets and the recording of the important data.
1) Chemicals are mixed and tested and the results are entered into the appropriate network files.
2) The chemicals are coated onto a substrate base and all key parameters and specifications are entered into the files.
3) Tests are performed and results are recorded in spreadsheet files.
4) Widgets are packaged and shipping information is entered.
All the data is stored on a SHARE drive in the mainframe. The engineers and support team can bring up all the data at their desktop computer when needed.
Mostly every LAN should have a server. ... The most widespread benefit is that you can play games via LAN. ... Hubs are commonly used to connect segments of a LAN. ... Four common LAN topologies exist: bus, ring, star, and tree. ... One LAN can be connected to other LANs over any distance via telephone lines and radio waves. ...
Wireless LANs also offer the perfect solution to a myriad of internal problems, such as installation of cable in asbestos-ladened buildings, preservation of historical buildings, the routing of conduit, and connecting nearby buildings, such as universities. ... The system flexibility found with implementing wireless LAN technology means that new wireless LANs could be installed from scratch - with a limited amount of hard-wiring, or perhaps by adapting existing LAN wires to serve as an "extension cord" for a transmission receiver. Infrared LANs lost their popularity because, when used outside...
Wireless LAN technology is a flexible data communications system implemented as an extension to or as an alternative for, a wired LAN. ... Wireless LAN's offer some advantages over traditional wired LANs, some advantages include: ? ... Installation Flexibility: Wireless LANs can go where wired LANs cannot. ... Real World Applications Wireless LANs usually are additions to wired LANs and add flexibility to existing LANs making a wide range of applications available. ... How Wireless LANs Work Wireless LANs use electromagnetic airwaves to exchange information between a wireles...
Why a Wireless LAN? ... Reliability, security and productivity "the same requirements that led users to adopt LANs more than 20 years ago "are compelling them to use wireless LAN (WLAN) technology today (Trapeze). ... There are currently two prevalent wireless LAN technologies being deployed. ... These technologies are not interoperable with each other or with other wireless LAN solutions. ... Planning for both capacity and coverage is one of the key design issues for wireless LANs. ...
Wireless LAN Basics A wireless LAN (WLAN) is a grouping of network components connected by electromagnetic (radio) waves instead of wires. ... Why choose a Wireless LAN? ... Who uses Wireless LANs? ... Wired network speeds differ as well, but most commercial wired LANs operate at around 10 megabits per second (10BaseT) to 100 Mbps (100BaseT). ... The WLAN industry recognizes that security is a significant challenge to wireless LAN growth, particularly in the commercial enterprise and government sectors. ...
Over the years the Ethereal Lan Group has been together we have been gathering together less and less for LAN parties. ... During our sophomore year of high school we formed the Ethereal Lan Group. ... We called ourselves the Ethereal Lan Group. ... A lot of LAN party attendees bring extra devices to plug into their (required) power strip. ... There is really no reason why anyone should be bringing any of these to a LAN party. ...
The story of Fa Mu Lan was very popular to young girls in China. ... The legend of Fa Mu Lan told the story of a girl who took her father's place in battle. ... She would follow her mother about the house, "the two of us singing about how Fa Mu Lan fought gloriously." (20.) ... Kingston first begins by saying that her mother had told her the legend of Fa Mu Lan, and then later becomes Fa Mu Lan. ... The legend of Fa Mu Lan talked of a girl fighting against the odds, taking a risk, and conquering all fears. ...
We chose local area network (LAN) here. LAN is a collection of computers that are linked to allow sharing of hardwares, softwares and data. Those computers are usually in close proximity, and each computer in a LAN is called a node. ... Star topology fit to one of LAN organisational models. ... Here, server is a central computer dedicated to controlling access to resources in the LAN, so each node becomes a client of the server. ...
The Internet and an Ethernet or token ring LAN at the customer's site. A router, which can convert TCP/IP to other protocols, is necessary if the internal LAN does not run TCP/IP. ... Now that the WAN is defined, Let's move on to the LAN connection at each site. ... Windows 2000 also supports any type of topology or protocol that you are likely to run on a LAN. ... All they need to do is configure their system to dial directly to the LAN and perform the same functions he or she could perform while in the office. ...
