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INTERNET AND IT SERVICES




Internet is a worldwide connection of computers cooperating with one another for the purpose of sharing same resources. The internet is a worldwide system of computer networks where users can obtain information about any subject or topic by connecting to the network .  The internet was first known as APRANET  and was started by U.S government in 1969.
Application of the Internet

·         Electronic Mail(e-mail):  e-mail is an exchange of messages between two computer  by telecommunication means.it happens to be one of the first services that were used for communicating over the internet.


·           Search Engine:   A search engine is a program that allow you to search fro a particular set of words specifield you on the internet. A user interface is provided where a user can enter the wotd or the pharase that is to be sought for.Examples of search engines include: Google,  Yahoo, MSN, Altavista.

 ·         File Transfer Protocol
You can transfer files from one computer to the other using the internet. File transfer means uploading a file to a server or donwloading a file froms erver. This service uses File Transfer Protocol (FTP), which is an internet protocol that helps to upload and download files. FTP is commonly used to download files to personal computer from other servers on internet. Protocol is a set of rules that govern the transfer of  message from one computer to another on a network. Uploading refers to the act of sending a file from a personal computer to another computer on a network while downloading refers to receiving a file from a computer on the network to a personal computer.
 We will talk more about the internet services in the later chapter.  

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