Why is “C” the Default Drive on Your Computer (Instead of A or B)?

July 26, 2016 | Views: 18393

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Have you ever wondered why the names of hard drives start from “C”? Where have the A and B drives gone?

Here’s the answer:

  • Hard disk drives have been standard since 1980
  • Before hard disk drives, Floppy disk drives were used as data storage devices
  • Floppy disks came into existence in the 1960’s
  • Floppy disks came in two sizes 5 1/4 ” and 3 1/2″
  • Those two floppy disk drives were labelled as Local Disk “A” and Local Disk “B”
  • Hard disk drives augmented and then replaced the floppy disks, hence the letter “C” was used

By the way, after the invention of the Hard disk, a Floppy disk of size 8 inch came into existence

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30 Comments
  1. great post !!!!

  2. information that I never headed.thank u author. keep posting such posts.

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