Computer networking involves linking two or more computers together to exchange information via wired or wireless connections. A network can be an intranet, internet, or local area network (LAN). The internet is a global system of interconnected computer networks that links millions of private, public, academic, business and government networks using various networking technologies to share a wide range of information and services. An intranet is a private computer network within an organization that uses internet standards and protocols to share company information among employees. A LAN connects computers within a small physical area like a home, office, or building. A personal area network connects devices like computers, phones and cameras within a few meters of an individual, using wired or wireless connections like USB cables or Bluetooth

1. Networking
and
E- commerce

2. Table of contents:
1. Computer networking
2. Network
3. Internet
4. Intranet
5. Local area network (LAN)
6. Personal area network (PAN)

3. COMPUTER NETWORKING
Two or more computers linked together so that they
are able to exchange information.
Connection can be wired or wireless.

4. NETWORK
The network may be :
 Internet
 Intranet

5. INTERNET
 Global system of interconnected computer networks.
 Consists of millions of private, public, academic, business,
and government networks .
 Linked by a broad array of electronic, wireless, and optical
networking technologies.
 Carries an extensive range of information resources and
services.

6. INTRANET
A computer network that use internet standards
(HTML,HTTP & TPC/IP protocols) & software.
Accessed only by authorized persons, especially
members or employees of the organization.
The main purpose of an intranet is :
To share company information and computing
resources among employees.

7. LOCAL AREA NETWORK
A local area network (LAN) is a computer
network that interconnects computers within a
limited area such as a residence, school, laboratory,
university campus or office building.

8. A LAN can cover an area of few kilometres in radius.
An office, building or a school usually contains a single
LAN.
Some schools may have an independent LAN in each
computer lab.

9. PERSONAL AREA NETWORK
 A personal area network (PAN) is a network of
communicating devices in the vicinity of an
individual. These devices could include computer,
phone , MP3/MP4 player ,camera , etc.

10.  A PAN can cover an area of only few meters in radius.
 A PAN is used to transfer files between devices.
A PAN can use wired media (USB cable) or wireless media
(Bluetooth) .

11. THANK YOU