All computers come with an internal hard drive for long-term memory storage. If you need your data to be portable, however, you'll need to buy an external hard drive. The actual hardware within these drives is similar to the hardware in an internal drive, but the drive is placed into a small case that protects it from damage. The case also makes it possible to connect the drive via USB, eSATA, Firewire or some other external connection method.
An external hard drive can be used with Windows, Mac and Linux computers. There are many drives available in a variety of shapes, sizes and storage capacities. Some drives are built to be as small and light as possible while others are meant to provide a massive amount of capacity at a low price. Bright Hub has several guides that will help you find an external hard drive that fits your needs.
I hope you enjoy your stay at Bright Hub, and that you find what you're looking for.