Why Computer Drive name starts with C ? What about A and B

Have you ever wondered why there is no A and B drive in your computer
Why is the default drive in MS-Windows computers the C drive?
The drives beyond that one are labelled D, E, and so on. If you plug in USB drives, they get F and G. So yeah, what about A and B?

Then Read this :)

Earlier, computers didn’t have much storage space. People used to use floppies to store information. Therefore, floppy disks were labeled A. As floppies used to come in two different sizes, 3 ½” and 5 ½, therefore names, A and B were given to them

It was only in the late 1980s that hard drives became a standard. And so they were logically labelled C. And these hard drives were used to store the operating systems of the computers. Gradually, floppy disks became obsolete and computers started doing away with floppy drives. The A and B drives were phased out and C remained.

If in case you want to, you can change the order of the labels and rename your drives as A and B if you have the administrative rights of the computer,

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