This post was published 3 years 7 months 16 days ago which may make its actuality or expire date not be valid anymore. This site is not responsible for any misunderstanding.

I found this question/answer really interesting and might be neat trivia for the computer geek in you.

The answer goes back to the glory days of floppy discs and DOS. The early DOS operating system designated two drives, A and B, strictly for floppy drives. Why? Because many early computers didn’t have native hard drives — they booted from Drive A, and ran applications from Drive B.

Later, as computers came with hard drives, the second floppy drive became a useless appendage — the computer equivalent of an appendix. To avoid confusion during the evolutionary window when computers with new hard drives coexisted beside computers with two floppies, the hard drives were given the “C” slot.

Technically speaking, the “computer” isn’t missing the B drive, it’s just that later Microsoft operating systems have omitted it as unnecessary. [via]