In information
technology, a network is a series of points communication paths. Networks can
interconnect with other networks and contain subnetworks
A
Local Area Network (LAN) is a network that is confined to a relatively small
area. It is generally limited to a geographic area such as a writing lab,
school, or building.
Computers
connected to a network are broadly categorized as servers on the network. Services provided can include printing and faxing, software
hosting, file storage and sharing, messaging, data storage and retrieval,
complete access control (security) for the network's resources, and many
others.Workstations are called such because they typically do have a human user
which interacts with the network through them. For example, a
group of servers might be located in a secure area, away from humans, and only
accessed through the network. In such cases, it would be common for the servers
to operate without a dedicated display. On the other hand, a workstation might
not need as much storage or working memory, On a single LAN, computers and
servers may be connected by cables or wirelessly. Wireless access to a wired
network is made possible by wireless access points (WAPs).
Wide
Area Network
Wide Area Networks
(WANs) connect networks in larger geographic areas, such as Florida, the United
States, or the world. satellite uplinks may be used to connect this type of
global network.
Using a WAN, college
in Florida can communicate with places like Tokyo in a matter of seconds,
without paying enormous phone bills time. A WAN is complicated. It uses multiplexers,
bridges, and routers to connect local and metropolitan networks to global
communications networks like the Internet. To users, however, a WAN will not
appear to be much different than a LAN
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