Internet Technology

We look to the Internet for news, socializing, shopping, research and more. From HTML code to instant messaging, we'll break down what's really going on whenever you log on, send an e-mail, visit a popular Web site or post to a blog.

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How Internet Infrastructure Works

Do you ever wonder how the Internet really works? How do Web pages, e-mail and music move to and from your computer? Learn all about the amazing global network we call the World Wide Web.

How does satellite Internet operate?

How do you access the Internet other than dial-up if you live too far from a phone company office for DSL and there is no cable TV on your street? Satellite Internet access may be worth considering.

How Instant Messaging Works

Every day, billions of e-mail messages are sent. But sometimes even e-mail isn't fast enough. Learn about instant messaging and check out what you can do with real-time computer communication.

Why the Difference in Speed With My Cable Modem?

One minute you're zipping along, the next, you can't get a page to load. What's the deal? Cable modems are part of a loop that begins at the cable company's central office, goes through a certain geographic area and returns to the central office.

Why the difference in speed with my cable modem?

It can be truly frustrating -- one minute you're zipping along just fine, the next, you can't get one page to load. What's causing the backup? Cable modems are part of a loop that begins at the cable company's central office, goes through a certain neighborhood or area, and comes back to the central office.

How Fiber Optics Work

Fiber-optic lines have revolutionized long-distance phone calls, cable TV and the Internet. It's a really cool technology that enables the long-distance transmission of data in light signals, and is probably used in more ways than you think.

What Is an IP Address?

Your IP address is one of 4.3 billion unique numbers that identifies your computer on the internet. Learn the different IP classes and discover how your computer gets its own address.

How Internet Odors Will Work

Odor-producing peripherals will bring smell to the Internet, and are just around the corner. Find out how they will work!

The Ultimate Social Network Is … the White House?

Think you struggle to keep up with your Twitter feed? From live video on Facebook and YouTube shows to snaps and Instagram posts, the White House is all over social.

How Interplanetary Internet Will Work

How far will the Internet go? The next phase of the Internet will take us to far reaches of our solar system and lay the groundwork for a communications system for manned missions to Mars and planets beyond.

How Web Animation Works

These days, you can find animated figures all across the Internet! Ready to give life to your own creations? Learn about dynamic HTML, animated GIFs, Java, Shockwave and Flash animation techniques.

How WAP Works

Do you get the shakes when you're offline for more than 10 minutes? The wireless Internet lets you browse Web pages from a cell phone or PDA. Learn about the Wireless Application Protocol that makes it possible to surf on the go.

What do you call the symbol used in e-mail addresses?

The funny little "a" with its tail circling back around it is probably one of the most commonly used symbols today. So it is truly amazing to learn that there is no official, universal name for it.

Why does my Web browser display some book-marked sites with a custom icon?

To make it easier to pick out a particular link from your list of favorites, Internet Explorer versions 5.0 and higher include custom bookmark icons for some sites. Learn how they do it and how these icons make your web surfing easier.

How Internet Search Engines Work

Internet search engines are special sites on the Web that help people find information stored on other sites. There are differences in the ways various search engines work, but they all perform three basic tasks.

How Cable Modems Work

Learn how a cable modem works and see how dozens of television channels plus any Web site out there can flow over a single coaxial cable into your home.

How Web Pages Work

You can put anything you want on a Web page, from family pictures to business information, to your random thoughts and musings. Learn how to create, upload and promote your pages so they're available all over the world.

How Banner Ads Work

Banner ads generate a big part of the revenue for many Web sites. Learn how banner ads work, how much they cost and how much you might earn if you put them on your Web page.

How DSL Works

When you connect to the Internet, you might connect through a regular modem, a local-area network connection, a cable modem or a digital subscriber line (DSL) connection. DSL is a very high-speed connection that uses the same wires as a regular telephone line.

Where are all the Internet domain names registered and maintained?

One of the greatest things about the Internet is that nobody really owns it. It is a global collection of networks, both big and small, that connect together in many different ways to form the single entity that we know as "the Internet." How is this possible?

How does a T1 line work?

What's so special about a T1 line? It means the phone company has brought a fiber optic line into your office that can carry data at a rate of 1.544 megabits per second!

Why do some Web sites include www in the URL while others don't?

Once you spend a good deal of time on the Web, you start learning the language of internet addresses. Have you come across sites that use something in place of www? (Hint: you're on one now!)

If I want to create my own Web site, what do I have to do?

Are you ready to get your brilliant idea online and active? Here's the breakdown of what you'll need to do.

Why do some Web pages end in htm, html, asp, etc.?

While .html may be the most common file extension, what do the others mean? What about .htm, .asp or .php?

Why is it that some Web pages seem to trap me so I can't get out?

When you try to leave a Web site, either by using the Back button or by closing the browser window, the site reappears in a new window. Or maybe the site pops up in three or four new windows when you try to leave it. What's going on here?