There are many reasons that people will cite as why they need to buy an external hard drive for their home computer, whether it be a desktop pc or a laptop, but the most often that we hear is that they just simply need more space. The strange thing is that the need for this extra disk space capacity is often just due to bad computer management and laziness when it comes to removing stuff that you really do not want or need anymore. It is always just easier to leave it all there gathering dust on your internal hard drive than to make a few decisions to delete a few files that are really no longer require. But of course there is another much more important reason for buying that new external harddrive and that is to provide you with an effective backup system for all the important and often critical files of information, documents, images and videos that you have stored on your computer and that you would really hate to lose. External drives today are very affordable and come with huge capacities and this now means that gigabytes are old hat as the standard hard disk drive now has storage for one terabyte of data, so there really should be no excuse for anyone at all to backup all of their important files every day!