There are reasons we have when we look for external hard drives because your computer is very full of information and just you can put information in, either because your notebook requires a greater storage capacity and don't want to or you can not install a new hard drive bigger inside. In any case, the solution to these situations are external hard drives. External hard disks are large capacity devices to store information with the advantage in question of external elements, i.e., that are not installed on the inside of the computer, that are abroad connected to it by a high speed cable, usually USB. External hard drives are very useful add-ons that let you have a hard disk of reinforcement and increase, thus, the capacity of our desktop, laptop or PDA. One of the tasks most common in the world of computing is the installation of a new hard drive.
It is a simple method to extend the duration of a computer that is running out of space for storage. When you install a new internal or external hard drive, you can increase the space total disk several times, since hard drives have much more power now than it was two or three years. The easiest way to add hard disk space consists of connecting an external hard drive. If you add an external hard disk, it cannot function as the primary hard disk on which Windows is installed, but yes you can use it as a secondary disk to store programs and files. Add an external hard drive is a suitable method to significantly increase space and be able to store digital photos, videos, music and other files that require a large amount of disk space. To install an external hard drive, the only thing you need to do is connect it to your computer and connect the power cord. Most of these hard disks are connected to a USB port, but some others are connected to a Firewire port (also called IEEE 1394) or eSATA (external serial ATA). For additional instructions, see the information that came with the external hard drive. Furthermore, it is may need to install the software that came with the hard disk. Original author and source of the article