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Friday 22 March 2013

INTERNET SERVICES


TYPES OF INTERNET SERVICES

There are different types of internet services, below are the list of common internet services

 


1.      WORLD WIDE WEB

2.      TELNET

3.      ELECTRONIC MAIL

4.      FTP - FILE TRANSFER PROTOCOL

5.      CHAT

6.      NEWSGROUPS

 

1.      WORLD WIDE WEB

Many people use the terms Internet and World Wide Web, or just the Web, interchangeably, but the two terms are not synonymous. The World Wide Web is a global set of documents, images and other resources, logically interrelated by hyperlinks and referenced with Uniform Resource Identifiers (URIs). URIs symbolically identifies services, servers, and other databases, and the documents and resources that they can provide. Hypertext Transfer Protocol (HTTP) is the main access protocol of the World Wide Web, but it is only one of the hundreds of communication protocols used on the Internet. Web services also use HTTP to allow software systems to communicate in order to share and exchange business logic and data.

World Wide Web browser software, such as Microsoft's Internet Explorer, Mozilla Firefox, Opera, Apple's Safari, and Google Chrome, lets users navigate from one web page to another via hyperlinks embedded in the documents. These documents may also contain any combination of computer data, including graphics, sounds, text, video, multimedia and interactive content that runs while the user is interacting with the page. Client-side software can include animations, games, office applications and scientific demonstrations. Through keyword-driven Internet research using search engines like Yahoo! and Google, users worldwide have easy, instant access to a vast and diverse amount of online information. Compared to printed media, books, encyclopaedias and traditional libraries, the World Wide Web has enabled the decentralization of information on a large scale.

 

2.      TELNET

A terminal emulation program for TCP/IP networks such as the Internet. The Telnet program runs on your computer and connects your PC to a server on the network. You can then enter commands through the Telnet program and they will be executed as if you were entering them directly on the server console. This enables you to control the server and communicate with other servers on the network. To start a Telnet session, you must log in to a server by entering a valid username and password. Telnet is a common way to remotely control Web servers.
 



3.      Electronic mail

 

Email is an important communications service available on the Internet. The concept of sending electronic text messages between parties in a way analogous to mailing letters or memos predates the creation of the Internet. Pictures, documents and other files are sent as email attachments. Emails can be send to multiple email addresses.



 

4.      FTP - FILE TRANSFER PROTOCOL

File Transfer Protocol (FTP) is a standard Internet protocol for transmitting files between computers on the Internet. File Transfer Protocol (FTP) is an application protocol that uses the Internet's TCP/IP protocols. FTP is commonly used to transfer Web page files from their creator to the computer that acts as their server for everyone on the Internet. It's also commonly used to download programs and other files to your computer from other servers.

As a user, you can use FTP with a simple command line interface (for example, from the Windows MS-DOS Prompt window) or with a commercial program that offers a graphical user interface. Your Web browser can also make FTP requests to download programs you select from a Web page. Using FTP, you can also update (delete, rename, move, and copy) files at a server. You need to logon to an FTP server. However, publicly available files are easily accessed using anonymous FTP.

Basic FTP support is usually provided as part of a suite of programs that come with TCP/IP. However, any FTP client program with a graphical user interface usually must be downloaded from the company that makes it.



5.      CHAT

On the Internet, chatting is talking to other people who are using the Internet at the same time you are. Usually, this communication  is the exchange of typed-in messages requiring one site as the repository for the messages and a group of users who take part from anywhere on the Internet. In some cases, a private chat can be arranged between two parties who meet initially in a group chat. Chats can be ongoing or scheduled for a particular time and duration. Most chats are focused on a particular topic of interest and some involve guest experts or famous people who "talk" to anyone joining the chat.

Chats are conducted on online services, by bulletin board services, and by Web site such Facebook. Several Web sites, notably Talk City, exist solely for the purpose of conducting chats. Some chat sites such as Worlds Chat allow participants to assume the role or appearance of an avatar in a simulated or virtual reality environment.

Talk City and many other chat sites use a protocol called Internet Relay Chat. A chat can also be conducted using sound or sound and video, assuming you have the bandwidth access and the appropriate programming.



 

6.      NEWSGROUP

A newsgroup is a continuous public discussion about a particular topic. You can join a newsgroup at any time to become part of a huge conversation between hundreds or even thousands of people. Example of newsgroup in Malaysia http://newsgroups.derkeiler.com/, www.businessme.com.my/Computers/Newsgroups/, pelaburansilver.com

Newsgroups originated in North Carolina back in 1979. That's when a couple of Duke University students hooked a few computers together to start an exchange of information with other UNIX users. Just down the road at the University of North Carolina in Chapel Hill, another student was writing software that could be used to distribute the information. Eventually, the work of these three students became the first bastion of newsgroups, termed Usenet.



 

ARTICLE BY

HEYWOOD JEHIA

2010175753

 

REFERENCES

Bodden, V. (2008). Internet. Minnesota: The Creative Company.

Comer, D. (2007). The Internet Book: Everything You Need to Know about Computer Networking and How the Internet Works. United State: Prentice Hall.

Craig, T. (2003). Internet: Technology, People, Process. Mankota: Black Rabbit Books.

Gary B. Shelly, H. A. (2009). Discovering the Internet: Complete Concepts and Techniques. Stamford, Connecticut: Cengage Learning.

Hamilton, J. (2005). Internet. Minnesota: ABDO.

 

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