Why Is The Hard Drive The C Drive
On computers running Windows or MS-DOS, the hard drive is labeled with the C: drive letter. The reason is because it is the first available drive letter for hard drives. The computer reserves A: and B: drive letters for the floppy disk drive and removable media, such as tape drives, even if these devices are not installed in the computer. As you install other drives and create new partitions, they are assigned to other drive letters after C, such as D, E, F, G, etc....