4 Things You Must Do Before Selling Your Old computer,Phone or Tablet

Here's a fun thing .Buy an old hard drive on eBay, then run recovery software on it. It's a little data treasure hunt ,and you'll be amazed at what you can find. Even more amazing though are people who don't even bother to delete data first; they just sell the phone or throw away the machine as is. You might as well put family photos, bank documents and your passport in a box, then leave it outside your house with a giant "steal me" sign on it.
If you don't want to be one of those thousands of people who fall prey to privacy invasions and identify theft every day,then read on. Here are 3 essential steps to take before getting rid of a device.

Backup

Even if you think you've copied everything you need, there's probably something you've forgotten-your bookmarks, or application settings, for instance.
The best backup to is therefore a complete disk image of the computer you've selling or giving away. Use SuperDuper on a Mac, or read Tina's excellent tutorial for Windows.
For iOS devices, the computer you�re synced to would have automatically made backups. When you buy a new phone, you can simply restore your applications and purchases. To check if you�ve been backed up, connect the device to iTunes and open it up from the sidebar (you don�t even need it connected if you�re on the same network and latest versions); the Summary tab includes a Backup section as well as the last backup taken.