internet concepts

Internet : 

It is a worldwide system of computers networks. A network of networks in which users at any one computer can, if they have permission, get information from any other computer(and sometimes talk directly to users at other computer).

In 1957, the U.S. Government formed the Advanced Research Projects Agency(ARPA),  a segment of the department of defense charged.

In 1969, ARPA established ARPANET, the forerunner of the internet.

WWW:- (World Wide Web)  - The world wide web came into being in 1991, thanks to developer Tim Berners-Lee and other European laboratory for particle physics.

It is an information system where document other web resources identified uniform resource locator(URL) such as www.google.com

Browser :- It is the basic software you need in order to find, retrieve, view, and send information over the internet

Ex: Google chrome, safari, Mozilla Firefox, opera

Download: -To copy data from a remote computer to a local computer

Upload :- To send the data from a local computer to remote computer

Email :- (Electronic mail) – is the exchange of computer stored messages by telecommunication.

HTML:- (Hyper Text Markup Language)-The coding language used to create documents for use on the world wide web.

HTTP:- (Hyper Text Transport Protocol) – The set of rules for exchanging file(text, graphic images, sound, video and other multimedia files)on the world wide web.

Search engine :- A web server that collects data from other web servers and puts it into a database like index, it provides links to pages that contain the object of your search.

Ex:- Google.com, yahoo.com, bing.com

URL(Uniform Resource Locator) :- The internet address.  Ex:- www.google.com

Domain:- A domain contains a group of computers That you can be accessed and administrator with common set of rules. Common top-level domains are:

.com- Commercial enterprises                                 

.org – organization site(non-profit, etc)  

.in- India websites                                                              

.edu – educational sites(universities, schools)

.gov – government websites                                    

.name – Personal websites(.ajay)

.mil – Military websites                                                     

.us-United states websites

.jp – Japan                                                                            

.au-australia

.info – commercial and personal                   

.int – organizations established by international treaty