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05/11/2012
WEEK 8 - NETWORKS
Types of Computer Networks.
Computer Network
Local Area Network (LAN)
Wide Area Network (WAN)
Internets
“the Internet”
Types of networks
A topical area network is a network of computers in the limits of
a single geographic location. It be able to include anywhere
between two and individual hundred computers.
A wide area netting connects computers across
different geographic locations. The key distinguishing
characteristic separating a LAN from a WAN is the
run over of locations that are connected. A LAN consists
of a unwedded location, while a WAN can communicate several
locations.
An internet is a reticulated of networks which can connect
LANs, WANs, and other internets.
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05/11/2012
Types of Computer Networks.
What are the components of a LAN?
Small company/Home office (SOHO LAN)
Wired connectivity
Wireless connections
Types of Computer Networks.
To exercise a wired connection, the computers conversion to an act a network
interface card (NIC). One of the devices in successi~ this network
acts as a switch which is used to receive and forward traffic
on the network. The cables used in this stamp of a connection
are traditionally unshielded twisted paired cable or UTP.
Other cables used to gain these connections can be fiber
optics or coaxial cable.
Wireless connections exercise a wireless network interface card,
(WNIC). Computers that are akin wirelessly, connect to
an access spot which receives the traffic and communicates
through the wired switch.
Typical SOHO LAN
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05/11/2012
Types of Computer Networks.
What are the components of a LAN?
LAN protocols
Institute
instead of Electronic and Electrical Engineers
(IEEE)
IEEE 802.3 (wired Ethernet)
IEEE 802.11 (wireless)
Bluetooth
Summary of LAN Networks
Types of Computer Networks.
What are the alternatives in quest of connecting to a
WAN?
Internet Service Provider (ISP)
Digital Data
Analog Data
...
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