The internet and the telephone system are similar you can connect a computer to the internet much like you connect your phone to the telephone system. once you are on the Internet, your computer because an extension of what seems like a gate computer a computer that branches all over the world. when provided with a connection to the internet, you can use a browser program to search the web.
The most widely used commercial internet service providers are national and wireless providers.
National service providers like BSNL (Bharat sanchar Nigam limited), VSNL (Videsh Sanchar Nigam Limited) are widely used. They provide SS throw standard telephone cable connection. User can access the internet from almost anywhere within the country for a standard free without incurring long distance telephone charges.
Wireless Service Providers:- offer internet connection for computer with wireless modem and a wide area of wireless device.
user connect two ISP using one of a variety of connection technologies including DSL, cable, and wireless modem.
Browser a program that provide access to web resource. This software connect to remote computers, open and transfer files, display text and images, and provides in one tool and uncompleted interface to the internet and web documents. browsers allow you to explore, or to surf the web by easily moving from one website to another. Three mean known browser Mozilla Firefox, Apple Safari and Microsoft Internet explorer.
for browsers to connect to resource the location or address of the resource must be specified. This addresses are called uniform resource locator (URLs). All URLs have at least two basic parts the first part present the protocol used to connect to the resource. protocol are rules for exchanging data between computers the protocol http is the most widely used web protocol. The second part present the domain name. it indicates the specific address where the resource is located that woman is identified as ndtv.com (many URLs have additional parts specifying directory path, file names, and pointers.) The last part of the domain name following the dot (.) Is the top level domain (TLD). It identify the type of organisation for example dotkom indicates a commercial side the URL http:// www.ndtv.com connect your computer to a computer that providers information about NDTV.
once the browser has connected to the website a document file is sent back to your computers. Which document type kalli contains Hypertext Markup Language (HTML). The browser interpret the HTML formatting instructions and displays the document as a web page. for example when your browser first connects to the internet, it opens up to a webpage specified in the browser settings. this page represents information about the site along with reference and hyperlinks or links that connect to other documents containing related information text files, graphic images, audio and video clip.
This documents may be located on a nearby computer system or on one halfway around the world. the link type appear on the web page underline and colour text and/or images. To assess the reference material all you do if click on the highlighted text or image. a connection is automatically made to the computer containing the material, and the reference material are there on your display screen.
web pages also can contain special programming to add interest and activity. A language called JavaScript is often used to trigger simple interactive features, such as opening new browser Windows and checking information enter in one line forms. Another example is applets, which are written in the JAVA programming language. This programs can be downloaded quickly and run by most browsers. Java applets are used to present animation, display graphics, provide interactive games, and much more.
PROVIDERS
the most common way to access the internet is through an internet service providers (ISP). the providers are already connected to the internet and provide a path for connection for individual so assess the internet. your college or university most likely provides you with free access to the internet idea through its local area network or throw a dial up telephone connection. They are also song companies that offer free internet access.The most widely used commercial internet service providers are national and wireless providers.
National service providers like BSNL (Bharat sanchar Nigam limited), VSNL (Videsh Sanchar Nigam Limited) are widely used. They provide SS throw standard telephone cable connection. User can access the internet from almost anywhere within the country for a standard free without incurring long distance telephone charges.
Wireless Service Providers:- offer internet connection for computer with wireless modem and a wide area of wireless device.
user connect two ISP using one of a variety of connection technologies including DSL, cable, and wireless modem.
 |
| Firefox |
BROWSER
 |
| BSNL ISP |
for browsers to connect to resource the location or address of the resource must be specified. This addresses are called uniform resource locator (URLs). All URLs have at least two basic parts the first part present the protocol used to connect to the resource. protocol are rules for exchanging data between computers the protocol http is the most widely used web protocol. The second part present the domain name. it indicates the specific address where the resource is located that woman is identified as ndtv.com (many URLs have additional parts specifying directory path, file names, and pointers.) The last part of the domain name following the dot (.) Is the top level domain (TLD). It identify the type of organisation for example dotkom indicates a commercial side the URL http:// www.ndtv.com connect your computer to a computer that providers information about NDTV.
once the browser has connected to the website a document file is sent back to your computers. Which document type kalli contains Hypertext Markup Language (HTML). The browser interpret the HTML formatting instructions and displays the document as a web page. for example when your browser first connects to the internet, it opens up to a webpage specified in the browser settings. this page represents information about the site along with reference and hyperlinks or links that connect to other documents containing related information text files, graphic images, audio and video clip.
This documents may be located on a nearby computer system or on one halfway around the world. the link type appear on the web page underline and colour text and/or images. To assess the reference material all you do if click on the highlighted text or image. a connection is automatically made to the computer containing the material, and the reference material are there on your display screen.
web pages also can contain special programming to add interest and activity. A language called JavaScript is often used to trigger simple interactive features, such as opening new browser Windows and checking information enter in one line forms. Another example is applets, which are written in the JAVA programming language. This programs can be downloaded quickly and run by most browsers. Java applets are used to present animation, display graphics, provide interactive games, and much more.
No comments:
Post a Comment