NETWORK COMMUNICATION TECHNOLOGY

1. CHAPTER 3: COMPUTER
NETWORKS AND
COMMUNICATIONS

2. At the end of the lesson, student should
be able to:
 State the types of network communication
technology:
i) Intranet
ii) Extranet
iii) Internet
 Define the types of network communication
technology:
i) Intranet
ii) Extranet
iii) Internet

3. The Types of Network Communication
Technology

4. Intranet
Communication Explanation
Technology
 an intranet is a private network within an organization that
Intranet resembles the internet.
 organizations use intranets to provide information to their
employees.
 typical applications include electronic telephone directories, email
addresses, employee information, internal job openings and much
more.

5. Extranet
Communication Explanation
Technology
 is a private network that connects more than one organizations
Extranet  many organizations use the internet technologies to allow
suppliers, customers and business partner limited access to their
network
 the purpose is to increase efficiency and reduce costs

6. Internet
Communication Explanation
Technology
 is a public network
Internet  it is worldwide collection of networks that links million of business,
government agencies, educational institution and individuals.
 internet users can access service like web browsing, email, file
transfer, mailing list, chat rooms, instant messaging and newsgroups.

7. The differences between Intranet,
Extranet and Internet
Differences Intranet Extranet Internet
Used for Private Private Public
Types of users Provide information Provide information Provide information
for organization to suppliers, for public
employees customers and
business partner
Usages Telephone Access data, check Access all kinds of
directories, internal status, place orders, information
job opening, send email
employee
information
Security High Use virtual private Loose
network (VPN)
technology to
communication over
the internet more
secure