Semarang, Indonesia (PressExposure) April 17, 2011 -- A Computer external hard drive is a hard disk that is placed externally, exterior of the PC's case. Usually it needed when u need larger space to store files than your internal hard drive. Though there are rapid increases in capability of processor to handle larger internal hard drive but external hard drive still have more advantages than internal hard drive. It's better add an external hard drive than change your internal hard drive into a bigger space because it can cause your pc work slower (it takes more time to read). But we have to make sure that every time we transfer files to our external hard drive there're no viruses infected the source files because the external hard drive usually fragile with the viruses. Nowadays there're many viruses can attack your hardware so that can make your external hard drive can't work properly or even create a bad sectors. Other advantage is computer external hard drive designed to be movable. You can carry it wherever you want without afraid the damage caused by vibration while you carry or move it or even when you accidentally drop it (in coverage term and conditions).
In addition, you may choose external hard drive that meet your purpose such as capacity or compatibility or safety or simplicity. Capacity is you may choose external hard drive capacity as large as you need. As a photographer needs larger capacity than a writer because video and picture usually have larger file's size than documents. Compatibility is you may choose external hard drive that compatible with your PC's program such as Mac or Windows. Safety, you can save your important documents or files in your external hard drive and place your external hard drive in secure place so that no one can access your documents or files. It's saver than if you save it in your PC. Simplicity, you may choose external hard drive's size, dimension or shape as you need because external hard drive has many size, dimension and shape that you can choose.
Read the review of each external hard drive, find the cons of each product from other users can minimize the fault of choosing.