network ! batra computer centre
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Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Full Form LAN
Local Area
Network
MAN
Metropolitan Area Netwo
rk
WAN
wide area network
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
A computer network is a set of connected computers. Computers on a network are called nodes. The connection between computers can be done via cabling, most commonly the Ethernet cable, or wirelessly through radio waves. Connected computers can share resources, like access to the Internet, printers, file servers, and others. A network is a multipurpose connection, which allows a single computer to do more.
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A local area network (LAN) is a group of computers and associated devices that share a common communications line or wireless link to a server. Typically, a LAN encompasses computers and peripherals connected to a server within a distinct geographic area such as an office or a commercial establishment. Computers and other mobile devices use a LAN connection to share resources such as a printer or network storage.
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
You Can Share Peripherals Like Expensive Laser Printers.
A Fileserver Can Be Used To Store And Share Documents And Files Centrally.
Electronic Messages (Email) Can Be Sent Between Computers.
The Computers On The Network Can Be Centrally Managed.
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Topologies
Tree
Bus
Ring
Star
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Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
A metropolitan area network (MAN) is a computer network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network (LAN) but smaller than the area covered by a wide area network (WAN).
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
MANs can span in the range of 5 to 50 kilometers in diameter.
1–150 (Mbps
Advantages And Disadvantages Of Man
NetworkAdvantages• The biggest advantage
of MANs is the bandwidth of the connecting links.
• This means that resources shared on the network can be accessed extremely quickly.
• Some installations allow multiple users to share the same high-speed Internet connection, thereby sharing the cost of the service and securing a better quality of service through collective bargaining and economies of scale.
Disadvantages
• The key disadvantage of MANs is the cost of the cutting-edge technology employed.
• this equipment generally has to be installed for the first time, as the copper traditionally used for the phone network is generally considered to be too slow to be annexed for this purpose.
• The cost is what inhibits the geographical reach of MANs, which is also another drawback.
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
A wide area network (WAN) is a computer network that spans a relatively large geographical area and consists of two or more interconnected local area networks(LANs). A LAN is a that connects computers and other devices in a relatively small area, typically a single building or a group of adjacent buildings.
Advantages And Disadvantages Of Wan
NetworkAdvantages• Centralizes IT
infrastructure.• Boosts your privacy.• Increases bandwidth.• Eliminates Need for
ISDN.• Guaranteed uptime.• Cuts costs, increase
profits.
Disadvantages
• High setup costs.• Security Concerns.• Maintenance Issues.• Other maintenance
concerns include link quality and performance degradation.
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
SDLCISDNSMBSSONETFrame RelayHDLC
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Basic LAN MAN WAN
Range
Speed
Cost
Transmission Media
Numbers of
Computer
1–2 kms
Fastest
Small
Twisted-Pair
Smallest
2–50 kms
Slower
High
Twisted-Pair
Fibre-optics cables
Large
Worldwide
Slowest
Higher
Fibre-optics
Radio waveSatelliteLargest
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
ADDRESS: SCO -15, Dayal Bagh, Near Hanuman Mandir Ambala Cantt-133001 HaryanaPh. No.: 9729666670, 8222066670 &0171-4000670Email ID: [email protected]: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com