Have you had your Diet Pepsi Max today? Or maybe a twenty dollar cup of Loca-Moca-Frappe-Caramelo-Choco-Latte made with low-fat soy milk? If you're like many people you feel a need to have a daily intake of caffeine in order to function normally. But how much caffeine is safe for a person to consume?

The hard drive, or hard disk drive (HDD), is the device inside your computer that allows you to permanently store data. The hard drive is a mechanical device that has rotating platters inside of a sealed case. Digitally encoded data is stored on and retrieved from the magnetic surfaces of these platters via a moving actuator arm with read-and-write heads on it. Since the data is stored magnetically, you should never allow magnets near a hard drive. Or else your data may become corrupt. Since a hard drive is a mechanical device, something will eventually go wrong with it and it will die. Because of this, you should always keep backups of important data in a safe place