As your digital devices begin to become outdated, you may consider gifting, donating or selling them. Any gadget you sell or get rid of, whether it be your phone, computer or tablet, should always be wiped so the next owner does not stumble on any sensitive personal information. Fortunately, wiping an iPhone is simple. All you need to do is go to Settings>General>Reset and select "Erase All Content and Settings." Tap the red button and wait for it to finish. What about other devices? Take a look at this feature from tech columnist Kim Komando on the steps you need to take to wipe clean your Android or Windows phones as well as PC or Mac computers.