NETWORK BASIC | NETWORK ARCHITECTURE | CLASSIFICATION OF NETWORK | WEB PAGE NAVIGATION | INTERNET SERVICE

3.3 Internet Services

§Examples of Internet Services:
E-Mail
WWW
Instant Messaging
VoIP
Message Board
File Transfer Protocol (FTP)
§What is 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.

§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
§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.
§An address book, or contacts folder, contains a list of names and e-mail addresses.
§An attachment in e-mail message, is a file to supplement the body of the e-mail message.

Internet Services:
Instant Messaging
§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

Internet Services: VoIP
§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


Internet Services: Newsgroup & Message Board
§What is a Message Board?
A message board is a Web-based type of discussion group.


Internet Services: File Transfer Protocol (FTP)
§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.