CHAPTER 3: COMPUTER NETWORKS AND COMMUNICATIONS

At the end of the lesson, student should be able to: State the types of network

communication technology:i) Intranetii) Extranetiii) Internet

Define the types of network communication technology:i) Intranetii) Extranetiii) Internet

The Types of Network Communication Technology

Intranet

Communication

Technology

Explanation

Intranet an intranet is a private network within an organization that 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.

Extranet

Communication

Technology

Explanation

Extranet is a private network that connects more than one organizations 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

Internet

Communication

Technology

Explanation

Internet is a public network 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.

The differences between Intranet, Extranet and InternetDifferences Intranet Extranet Internet

Used for Private Private Public

Types of users

Provide information for organization employees

Provide information to

suppliers, customers

and business partner

Provide information for

public

Usages Telephone directories, internal job

opening, employee

information

Access data, check status, place orders, send email

Access all kinds of information

Security High Use virtual private network

(VPN) technology to

communication over the

internet more secure

Loose