This document discusses various components of data communication and computer networks. It describes network interface cards, cabling types including UTP, STP, coaxial and fiber optic cables. It also discusses common networking devices like hubs, switches, repeaters, bridges, routers, modems, wireless access points, ADSL modems and routers, splitters, firewalls and 3G mobile networks. Diagrams are provided to illustrate each component.

1. Data Communication
and Networks
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E-Mail : siririth @ gmail.com

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Data Communication
and Networks
(Network Interface Card) (
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(Network Interface Card)
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Data Communication
and Networks
(Network Interface Card) (
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(Network Interface Card)
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Data Communication
and Networks
(Network Interface Card) (
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(Network Interface Card)
( )

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Data Communication
and Networks
(Network Interface Card) (
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(Network Interface Card)
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Data Communication
and Networks
(Network Interface Card) (
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(Network Interface Card)
( )

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Data Communication
and Networks
(Network Interface Card) (
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(Network Interface Card)
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Data Communication
and Networks
(Network Interface Card) (
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(Network Interface Card)
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Data Communication
and Networks
UTP (Unshielded Twisted Pairs)
UTP (Unshielded Twisted Pairs)

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Data Communication
and Networks
RJ-45 (Registered Jack 45)
RJ-45 (Registered Jack 45)

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Data Communication
and Networks
STP (Shielded Twisted Pairs)
STP (Shielded Twisted Pairs)

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Data Communication
and Networks
(Coaxial Cable)
(Coaxial Cable)

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Data Communication
and Networks
(Coaxial Cable)
Terminator
(Coaxial Cable)
(Terminator)

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Data Communication
and Networks
(Coaxial Cable)
T-Connector
(Coaxial Cable) (T-
Connector)

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Data Communication
and Networks
(Fiber Optic)
(Fiber Optic)

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Data Communication
and Networks

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Data Communication
and Networks
(Hub)
(Hub)

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Data Communication
and Networks
(Switch)
(Switch)

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Data Communication
and Networks
(Repeater)
(Repeater)

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Data Communication
and Networks
(Bridge)
(Bridge)

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Data Communication
and Networks
(Router)
(Router)

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Data Communication
and Networks
(Modem)
(Modem)

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Data Communication
and Networks
Wireless Access Point
Wireless Access Point

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Data Communication
and Networks
ADSL (ADSL Modem)
ADSL (ADSL Modem)

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Data Communication
and Networks
/ ADSL (ADSL Modem/Router)
/ ADSL (ADSL
Modem/Router)

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Data Communication
and Networks
Splitter
Splitter

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Data Communication
and Networks
Wireless Broadband Router
Wireless Broadband Router

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Data Communication
and Networks
(Firewall)
(Firewall)

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Data Communication
and Networks
3G Third Generation
PDA
Walkman
3G
3G

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Data Communication
and Networks
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Data Communication
and Networks
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Data Communication
and Networks
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Data Communication
and Networks
3G Third Gen
eration Mobile Network
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