10 Gadgets That Will Make Dad's Day

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10 Gadgets for Dad Hard Disks Who invented the Internet? Stun Guns 10 Gadgets That Will Make Dad's Day Finding a gift for the dad who has everything can be a challenge. But with new technology constantly on the march, it seems like there's always something new. Here are some of our Father's Day tech gift ideas. Essential Gadget Pictures 10 Great Gadget Gifts for Men Top 10 Fantasy Father's Day Gifts How Hard Disks Work Nearly every desktop computer uses one or more hard-disk drives. Your hard disk holds all of the information available on your computer. Take a look inside this incredibly precise storage mechanism. Hard Drive Tips What is the churning sound I hear from my hard drive? How does disk defrag work? Who invented the Internet? At one time, sharing files between computers meant carrying a box of punch cards from one machine to another. The Internet changed all that, but who's responsible for creating this network of networks? All About the Internet Who owns the Internet? Top 5 Myths About the Internet How Stun Guns Work Like the phasers used by Kirk and Spock, stun guns fall into the category of non-lethal weaponry. They can incapacitate without causing permanent damage. Stun Guns on Video How Electricity Works How the Taser Shotgun Shell Works   At Discovery, we value your privacy. If you would like to be removed from the HowStuffWorks.com newsletter or other newsletter emails like this, please click this link to our subscription center, where you can manage your account. Discovery Communications, LLC One Discovery Place, Silver Spring, MD 20910