Notes on Internet

 

Internet is a network of networks that connects computers anywhere in the world.

The World Wide Web (www or simply, the Web) is a very large subset of the Internet, consisting of those computers that store a special type of document known as a Web Page or HTML document.

HTML (Hypertext Markup Language) is a special language to develop web pages. With Word 2000, you can generate web pages with ease.

A hyperlink is a reference to another web page, probably stored on a different computer. Any internet path(that is, any text that begins with http:// or www) or e-mail address will be automatically converted to a hyperlink by Word when you press the spacebar. Examples:

http://www.bilkent.edu.tr

www.pagina.de/ozlem

ozgu@bilkent.edu.tr

HTTP stands for hypertext transfer protocol which is used by WWW services to retrieve documents quickly.

ftp stands for file transfer protocol and is used to download (move a file from a remote computer to your local computer)  or upload (move a file from your local computer to a remote computer) files on internet.

URL stands for universal (uniform) resource locator, a means of specifying the location of information on the Internet for WWW clients.

TCP/IP stands for Transfer Control Protocol/Internet Protocol and is the set of networking rules on the internet. Every computer on the web has a preset IP address that identifies it such as 195.142.99.1 We work with Domain Names that correspond to those numbers generally. For instance, bcc.bilkent.edu.tr.

DNS stands for Domain Name System which is a system that translates between Internet IP address and Internet hostnames.

Email is an electronic message delivered from one computer user to another. Short for electronic mail.

Email address is an address used to send email to a user on the Internet, consisting of the username and hostname. An Internet email address is usually in the form username@domainname. For instance your email addresses are in the format username@ug.bilkent.edu.tr.

 

HTML stands for Hypertext Mark-up Language, the formatting language/protocol used to define various text styles in a hypertext document, including emphasis and bulleted lists.

 

Hypertext is an online document that has words or graphics containing links to other documents.  Usually, selecting the link area.

 

LAN stands for Local Area Network is a network of computers that is usually limited to a small physical area. Such as a building.

 

Telnet is a program that allows remote logon to another computer. For instance you can use telnet to logon to one of the Unix servers on the Bilkent LAN.

 

Client is a user of a service. Also often refers to a piece of software that gets information from a server. Additionally, client refers to an application that makes a request of a service on a remote computer.

 

Server is a provider of service; a computer that runs services. It also refers to a piece of hardware or software that provides access to information requested from it.