Communication Technology Topic: The Internet Networking Overview Network The Internet, Intranet & Extranet LAN, WAN & MAN Packet-Switched Networks

1. Communication Technology
The Internet Networking

2. OVERVIEW
• Network
• The Internet, Intranet & Extranet
• LAN, WAN & MAN
• Packet-Switched Networks

3. Network
• “Network is a collection of computers and
devices connected together, often wirelessly,
via communication devices and transmission
media.”

4. The Internet, Intranet & Extranet
“The Internet is a worldwide collection of
networks that connects millions of businesses,
government agencies, educational institutions
and individuals.”

5. The Internet, Intranet & Extranet
• “An Intranet is a private network based on
TCP/IP protocols, belonging to an
organization, usually a corporation, accessible
only by the organization's members,
employees, or others with authorization.”

6. The Internet, Intranet & Extranet
“An extranet is a private network that uses
Internet technology and the public
telecommunication system to securely share
part of a business's information or operations
with suppliers, vendors, partners, customers, or
other businesses.”
Example, Supply Chain Management

7. The Organizational Network
• Local Area Network (LAN)
• Metropolitan Area Network (MAN)
• Wide Area Network (WAN)

8. Local Area Network (LAN)
• LAN networking comprises cables, switches, routers and other
components that let users connect to internal servers, websites and other
LANs via wide area networks.

9. Metropolitan Area Network (MAN)
• A MAN (metropolitan area network) is a larger
network that usually spans several buildings in
the same city or town. The IUB network is an
example of a MAN.

10. Wide Area Network (WAN)
• A WAN (wide area network), in comparison to
a MAN, is not restricted to a geographical
location, although it might be confined within
the bounds of a state or country.

11. LAN, WAN & MAN

12. Packet-Switched Networks
Packet-switched describes the type of network in
which relatively small units of data called packets
are routed through a network based on the
destination address contained within each packet.
Breaking communication down into packets allows
the same data path to be shared among many users
in the network.
Watch this:
Circuit switching & Packet switching

13. Packet Switching

14. Packet switching network
• Packet-switched networks move data in
separate, small blocks packets and based on
the destination address in each packet.
• When received, packets are reassembled in
the proper sequence to make up the message.

15. Circuit Switching

16. Circuit switching Network
• Circuit-switched networks and packet-
switched networks have traditionally occupied
different spaces within corporations.
• Circuit-switched networks were used for
phone calls and packet-switched networks
handled data. But because of the reach of
phone lines and the efficiency and low cost of
data networks, the two technologies have
shared chores for years.

17. Communication Technology
The Internet Networking