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Windows lives on the C: drive, and the reason it's not called A: or B: goes back to the 1970s

If you've used a Windows PC, you might have noticed that the main system drive is labeled "C:" by default and caught yourself wondering what happened to "A:" or "B:". After all, the alphabet doesn't ...
PC World

Why is the first Windows drive always called C:? Here’s the answer

The alphabet begins with the letter A, but the first drive on a reasonably up-to-date Windows computer is labeled “C:”. Why is that? First of all, the naming of the first Windows drive is not because ...