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What is the difference between analog and digital cell phones?
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There are two main digital systems in the U.S. One is generically known as "digital service," and the other is clearly branded as "PCS."
How to Back Up a Hard Drive
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If you back up your hard drive, you can save yourself headaches in the future if you should lose your files. Learn how to back up your hard drive.
5 Ways to Donate Your Old Smartphone or Cell Phone to Charity
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Learn more about five ways to donate your old cell phone or smartphone to charities that recycle or refurbish old phones.
How Holographic Versatile Discs Work
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Holographic memory systems offer more storage capacity and faster transfer rates than CDs and DVDs, but they've also been too expensive and complex to mass produce. Learn how the holographic versatile disc (HVD) has improved upon previous methods of holographic storage.
What is optical audio?
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Optical audio offers a new way to send audio and video from your gear to your ear. Learn how optical audio works.
How are movies stored on DVD discs?
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How are movies stored on DVD discs? Learn about storage capacity, data compression and the Moving Picture Experts Group (MPEG).
How to Cheat at Video Games
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There are several options for video game cheats. Whether you play online or looking for cheat codes or hacks, explore the different video game cheats.
How Xbox 360 Works
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Xbox 360 is a top-of-the-line, next generation game console. Learn about Xbox 360 specs and controllers, and read game reviews and find good prices.
How Satellite Radio Works
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Satellite radio is up and running. This means nonstop music (beamed down from space, no less), no ads, and coast-to-coast reception -- learn how satellite radio works!
10 Things to Look for When Buying a Laptop
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When buying a laptop, you should use certain criteria to make sure you get the best value. See these 10 things to look for when buying a laptop to get started.