If you are going to be carrying large amounts of information or just need to add a lot of storage capacity to your current machine, consider purchasing an external hard drive. Normally found within your computer, your hard drive is where the bulk of your computer’s data is stored. A hard disk is like a floppy disk, except that it is much larger and has much greater storage with faster access.
If you’re building your own computer, there are several components that are absolutely vital. In addition to your processor, your hard drive is going to be the most important piece in determining what your new machine is and isn’t capable of. It’s important to choose a hard drive that is suited to your needs–it’s almost always a good idea to get the best hard drive you can afford.