How Cable Modems Work - Cable modems let you send and receive data using the lines set up for cable TV. Learn how a cable modem works and how it compares performance-wise to a DSL connection.
How Cell Phone Radiation Works - And the debate goes on: Each week we hear conflicting reports about cell-phone radiation. Find out what the buzz is about and how to protect yourself.
How Cell Phones Work - Cell phones are a worldwide phenomenon that has completely changed the way we communicate with one another. Learn all about cell phones!
How Cell-Phone Services Work Cell-phone service plans have become more and more interesting as multiple carriers compete for your attention. Learn how cell-phone service plans work and what you should know when buying one!
How Cordless Telephones Work Cordless phones have been around for about 20 years, but lately have gotten a lot more sophisticated -- it seems like you need a Phd to buy one! Learn how cordless phones work and what you need to know to buy the best one for your home!
How DSL Works - DSL transmits data over phone lines without affecting voice service. Learn how it uses the extra bandwidth to provide a fast Internet connection.
How Fax Machines Work - What happens when you cross a photocopier with a phone? Find out how a fax machine sends a page around the globe!
How Fiber Optics Work - Fiber-optic lines have revolutionized long-distance phone calls, cable TV and the Internet. Learn how optical fibers are made and how they transmit light waves!
How Home Networking Works - Do you own more than one computer? Want them to talk to each other? Learn how to network computers to share files, a printer and an Internet connection.
How IP Telephony Works - IP telephony lets you make free long-distance calls using your computer. Learn about the technology behind it and how you can set it up.
How Long-Distance Scams Work - How many companies have tried to sell you "better" long-distance rates this week? Do the offers sound too good to be true? Find out how to tell the scams from the real deals.
How Phone-line Networking Works - If your computers are in different rooms, phone-line networking may be a good way to connect them. Learn about the pros and cons of a phone-line network.
How Radio Scanners Work - The air around you is bursting with radio waves. Find out how radio scanners let you listen in on everything from police to astronaut transmissions!
How Radio Works - Radio waves have had a huge effect on society -- everything from cell phones to garage door openers depend on them! Learn exactly how radios work!
How Satellites Work - Thousands of satellites fly overhead every day, helping us with things like weather forecasts, scientific research, communications, TV broadcasts, and so on. This new article helps you understand how satellites work, what they contain and how they get into orbit!
How Telephones Work - The telephone in your house is an amazingly simple device. Learn how your phone and the telephone network let you call people around the block and around the world.
How the Radio Spectrum Works - AM radio, FM radio, CB radio... These are all different chunks of the radio spectrum. Find out about the thousands of different uses for radio waves!
How VDSL Works - Consumers are demanding faster Internet connections, and VDSL may be the answer. Find out why VDSL is so much faster than other DSL technologies.
How Wireless Internet Works - The wireless Internet, commonly referred to as WAP, lets you browse Web pages from your cell phone or PDA. Learn all about this amazing system!
How Wireless Networking Works - Wireless networking is one of the ways to connect your home computers. Learn about the pros and cons of using a wireless network.
How Wiretapping Works - It's easy to tap a phone. Keeping a wiretap secret, now that's the tricky part. Learn how government spies and other pros go about listening in.
Inside a Digital Cell Phone - We take apart a digital cell phone and find a complete computer system!