This PPT has a explanation of telecommunication.THe telecommunication network is very useful in life,so this is used to understand the telecom easily.It also contain many importance and benefits of telecommunication.It has contain types of telecommunication networks.

1. .

2. Telecommunication is the transmission of
signs, signals, messages, images and sounds
by wire, radio, optical wire
electromagnetic systems. Telecommunication
occurs when the exchange
of information between communication partic
ipant includes the use of technology. It is
transmitted either electrically over physical
media, such as cables, or via electromagnetic
radiation.

4. A telecommunications network is a
collection of transmitters, receivers,
and communications channels that send
messages to one another. Some digital
communications networks contain one
or more routers that work together to
transmit information to the correct user.
An analog communications network
consists of one or more switches.

6.  Input and output devices, also referred to as 'terminals‘
 Telecommunication channels, which transmit and receive data.
 Telecommunication processors, which provide a number of control
and support functions
 Control software, which has responsible for controlling the
functionality and activities of the network
 In the case of a telephone network, the messages would consist of
audio as well as data.
 Protocols specify how each type of telecommunication systems
handle the messages

8. ♦ Telecommunication in health care.
♦ Telecommunication in bussiniess.
♦ Telecommunication in economic growth.
♦ Telecommunication in Transport
♦ Telecommunication in Government
departments

11.  Computer networks. ARPANET. Ethernet.
Internet. Wireless networks.
 Public switched telephone networks (PSTN)
 Packet switched networks.
 Radio networks.
 Television networks.