(Classification Of Network)(Network Architecture)(Internet Overview)(Internet Services)(Network topology)
Example of internet services:
- WWW
- Instant Messanging
- VoIP
- Messege Board
- File Transfer Protocol (FTP)
- WWW
World Wide Web or Web
The most widely used internet
service
Consists of a worldwide collection
of electronic documents
Each document
is called web page and containts text, graphics, animation,
audio and video.
Only web browser can retrieve and
display the content.
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What is an E-Mail?•E-mail (short for electronic mail ) is the transmission of messages and files via a computer network.An e-mail program is used to create, send, receive, forward, store, print, and delete e-mail messages.•Example: Gmail, Yahoo! Mail
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An e-mail address is a combination of a user name and a domain name that identifies a user so that he or she can receive Internet e-mail.•Example: [email protected]
A user name is a unique combination of
characters, such as letters of the alphabet and/or numbers, that identifies a
specific user.
What is an Instant Messaging?
•Instant messaging (IM) is a real-time Internet
communications service that notifies you when one or more
people are online and then allows you to exchange messages or files or join a
private chat room with them.
•Real
time means that you and the people with whom you are conversing are online
at the same time.
Examples of popular Instant Messaging:
•AIM (AOL Instant Messenger)
•Google Talk
•MySpace IM
•Windows Live Messenger
•Yahoo! Messenger
What is a VoIP?
•VoIP, (Voice over IP, or Internet
Protocol) also called Internet telephony, enables
users to speak to other users over the Internet.
Examples of popular VoIP:
•Skype
•Windows Live Call
•Yahoo! Voice
What is
a Message Board?
•A message board is a Web-based type of discussion
group.
What is a File Transfer Protocol (FTP)?
•It is an Internet standard that permits
file uploading and downloading with other computers on the Internet.
•An FTP
server is a computer that allows users to upload and/or download files using
FTP.
•An FTP site is a collection of
files including text, graphics, audio clips, video clips, and program files
that reside on an FTP server.