Describe how to access the Internet. What are the providers? Define browsers and discuss URLs, HTML, javascript, AJAX, applets, and mobile browsers.

1)The most common way to access the Internet is through an Internet service provider(ISP).

2)The providers are already connected to the Internet and provide a path or connection for individuals to access the Internet. The most widely used commercial Internet service providers use telephone lines, cable, and/or wireless connections.

3)Browsers are programs that provide access to Web resources. This software connects you to remote computers, opens and transfer files, displays text, images, and multimedia, and provides in one tool an uncomplicated interface to the Internet and Web documents. Browsers allow you to explore, or to surf, the Web by easily moving from one Web site to another.

4)

URLs: For browsers to connect to resources, the location or address of the resources must be specified. These addresses are called uniform resource locators(URLs).All URLs have at least two basic parts. The first partpresents the protocol used to connect to the resource. The second part presents the domain name.

HTML:Once the browser has connected to the Web site, a document file is sent back to your computer. This document typically contains Hypertext Markup Language(HTML). The browser interprets the HTML formatting instructions and displays the document as a Web page.

javascript:Web pages also can contain special programming to add interset and activity. A language called javascript is often used to trigger simple interactive features, such as opening new browser windows and checking information entered in online forms.

AJAX:An advanced use of javascript called AJAX can be found on many interactive sites. This technology is used to create interactive Web sites that respond quickly, like traditional desktop application software.

applets: are written in the Java programming language. These programs can be downloaded quickly and run by most browsers. Java applets are used to prosent animation, display graphics, provide interactive games, and much more.

Mobile browser: are designed to run on these portable devices, which is displayed on a very small screen and special navigational tools are required to conveniently view Web content.