FCC 123 INFORMATION TECHNOLOGy

TOPIC 5: Internet 

the internet is the biggest network in the globe that connects people and organizations all over the world and it is a global interconnected network that uses internet protocol to serve billions of different users. 

The users use internet to find information, to upload and download files, to buy things online, meet people, share resources between computers. 

The arpanet was the first name given to internet in the 1960's and it used internet protocols for internetworking, where many networks could be joined together into a network of networks. in 1982 the internet protocol suite (TCP/IP) was invented and interconnected networks called internet was introduced. 

there are 6 main services of internet:

1.communication(electronic mail)

2.world wide web

3.protocol 

4.chat room

5.instant messaging

6.ir(information RETRIEVAL)

1. email is an electronic mail it allows users to exchange messages from one computer to another. email program is used to create, send, receive, forward, store, print, and delete, email.

2. world wide web was created by tim berners lee and it contains hyperlinks, images, keywords related to information. it is a collection of web pages and it has the same theme called web site. web site consists of documents which are called web pages.

3. transfer protocol is the collection of rules software in computers regulating the movement of information and files from one computer to another.  examples for protocol are HTtp(hypertext transfer protocol) and ftp(files transfer protocol). 

4. chat room is the typed conversation between people and it is a channel location on the internet that allows people to communicate easily.

examples: yahoo chat room, aol chat room and so on.

5. Voip ( voice over internet protocol) or instant messaging that allows people to speak to each other over internet. for instance, skype, yahoo voice, windows live call.

6. ir or news group is an electronic bulletin board to make discussions about any topic. and it includes newsreader that is used to access newsgroups like bbc world news, the economist, google talk and more.

uniform resource locator(url) is used by browsers to locate the address of web pages and their exact location. and it tells the transfer protocol, the domain name the pathname, of the folder and the name of the file.