------Describe how to access the Internet.

There are four ingredients needed to access the Internet (1) an ISP, (2) a modem, (3) a Web browser and (4) an e-mail program.

1.The Internet Service Provider (ISP)
Your access to the Internet is through an Internet service provider (ISP), which can be a large company such as America Online or MSN, or any of hundreds of smaller ISPs throughout the country. You are offered unlimited access for a fixed rate per month.

2.The Modem
Depending on the kind of service you have, you will need a unit of hardware called a "modem" for connection. Slow-speed dial-up telephone access uses an analog modem, which may already be installed in your computer. If not, one can be plugged into the USB port.If you sign up for cable or DSL service, which is from 40 to 100 times faster than telephone dial-up, your provider may send you the appropriate modem, or you can purchase it at your local electronics store. Quite simply, opt for the high-speed service if you can. Dial-up modems are an exercise in extreme patience.

3.Browsing the Web
A Windows PC comes with the Internet Explorer Web browser. The first time you hook up to a new ISP, you may need their assistance to configure the dial-up or networking software in your computer. After that, all you do is launch the browser to "surf the Web."

4.Sending E-Mail
Although e-mail can be sent and received using your Web browser (see e-mail interfaces), your computer may come with a dedicated e-mail program like the ones found in smartphones.

 

------What are the providers?

The providers are already connected to the Internet and provide a path or connection for individuals to access the Internet.

 

------Define browsers and discuss URLs, HTML, javascript, AJAX, applets, and mobile browsers.

Browsers are programs that provide access to Web resources.

1.For browsers to connect to resources, the location or address of the resources must be specified. These addresses are called uniform resource locators(URLs).

2. Once the browser has connected to the Web site, a document file is sent back to your computer. This document contains Hypertext Markup Language (HTML).

3. 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.

4.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.

5.applets are written in the Java programming language.Java applets are used to present animation, display graphics, provide interactive games, and much more.

6.Special browsers called mobile browsers are designed to run on these portable devices.