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1. Ph. No.: 8222066670, 4000670 Website:

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The 1st trans-Atlantic fiber optics was laid in 1988. it
was called TAT-8, and it carried 40000 telephone
circuits. Some subsequent fiber optics cable include
TAT-9 and TAT-12. Currently , there are 10 such
cables in service and, another 10 under construction
or planned.

3. Ph. No.: 8222066670, 4000670 Website:
 1970’s : limited long-distance (wide area
networking) networks
 1980’s : emergence of local area networks, with
standards
 1990’s : integration of the two – data networks
became ubiquitous.

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 Telecommunication (referring mainly to voice
transmission ) medias are mainly circuit
switched and the industry conservative.
 Data Networking (referring mainly to data
transmission) medias are mainly packet switched
and the industry dynamic.

5. Ph. No.: 8222066670, 4000670 Website:
Network
Metropolitan Area Network
(MAN)
Wide area network
(WAN)
Local Area Network
(LAN)

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7. Ph. No.: 8222066670, 4000670 Website:
 In formation technology, a network is a series of
points or nodes interconnected by communication
paths. Networks can interconnected with other
networks and contain sub networks

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 A local area networks (LAN) is usually privately
owned and links the devices in a single office,
building, or campus.
 Depending upon the needs of an organization and
the type of technology used.

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 A wide area network (WAN) provide long-
distance transmission of data, voice, image and
video information over large geographical areas
that may comprise a country, a continent or even
the whole world.

11. Ph. No.: 8222066670, 4000670 Website:

12. Ph. No.: 8222066670, 4000670 Website:
 A metropolitan area network (MAN) is designed
to extend over an entire city. It may be single
network such as a cable television network, or it
may be a means of connecting a number of LANs
info larger network so that resources may be
shared LAN-to-LAN as well as device-to-device.

13. Ph. No.: 8222066670, 4000670 Website:

14. Ph. No.: 8222066670, 4000670 Website:

15. Ph. No.: 8222066670, 4000670 Website:

16. Ph. No.: 8222066670, 4000670 Website:

17. Ph. No.: 8222066670, 4000670 Website:
ADDRESS:
SCO -15, Dayal Bagh,
Near Hanuman Mandir
Ambala Cantt-133001
Haryana
Ph. No.: 9729666670, 8222066670 &0171-
4000670
Email ID: info.jatinbatra@gmail.com
Website: www.batracomputercentre.com

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