You may need to format a hard drive to match your computer's operating system before you can use it. To format a hard drive in Windows, you'll use the Disk Management utility; on a Mac, you'll use ...

An external hard drive is a piece of equipment that can be connected to your computer to increase its storage space. Unlike the hard drive that's installed in your computer, an external hard drive is ...

So I've got two computers. Computer one has one physical hard drive on it. Computer two has two physical hard drives on it. P-Drive C is partitioned into 3 drives. P-drive D is a single partition.