3.3 Internet Services

Example of Internet Services :

WWW
VoIP(Voice Over Internet Protocol)
Instant Messaging
E-Mail
Message Board
FTP(File Transfer Protocol)
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.
E-Mail?
•E-mail (short for electronic mail ) is the transmission of messages and files via a computer netwaork.
§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.
Example Of E-Mail

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.
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§Examples of popular Instant Messaging:
•AIM (AOL Instant Messenger)
•Google Talk
•MySpace IM
•Windows Live Messenger
•Yahoo! Messenge
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
Message Board?
•A message board is a Web-based type of discussion group.

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.




             

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