"Why Your Hard Drive Uses The Letter C" - This video exists
Posted Aug 24, 2021, 2:45 AM UTC
Posted Aug 24, 2021, 2:45 AM UTC
A was always the floppy, but I never knew why there was never a B.
B: was the other floppy drive. Having two drives let you easily copy floppies in the era where there was no hard disk and precious little RAM. The alternative was a bunch of floppy swaps for a single disk copy.
My first machine had 48K of RAM, 16K of ROM, and two 128K 8" Shugart floppy drives
So the drive designations date back to the 80s, then? The only computers I ever used from that era were my school's old Apple II machines, and those drives were numbered.
Yeh, basically they started with a single floppy drive. This would load your OS on starting up - then you could remove it and put in a different floppy for whatever program/game you wanted to run.
Once you exited the program, it needed to load the OS again, so it would give you the message "Please insert Disk with COMMAND.COM" - So you had to put your OS disk in again.
Then you got PC's with two floppy drives, A and B. You left your OS disk in the A drive, so that you can run programs from the B drive, no more disk swapping - it was glorious!.
So when HD's came out - they were naturally labelled as Drive C
EDIT: I remember having to fiddle with the BIOS settings to tell it to boot from drive C now and not Drive A - and for a while the default was to try and boot from drive A first, and if unsuccessful, boot from C
I've used dual floppy PCs (actual IBMs), but I didn't own one.
Floppy's...thats why.
Then later D: and E: were your two CD drives, the source and the writer. F: was your Zip drive…I think that was it.
If you had your onboard IDE channels full, that was C,D,E,F. I had a Jaz and that was SCSI so I had a G drive as well and had the ability to chain 6 more devices.
It was DH0: in my day.
My first computer only had an a:\ drive. It wasn’t until six months later I bought a 40 MB(not a typo) spinning hard dry and got my c:\
My first HD was 20MB, I wanted bigger, but encountered 2 problems
Later on you could get bigger HD's but had to partition them if you wanted to use them in DOS
I thought it was Ok because nobody would ever be able to fill up a 20MB hard drive - that's like the whole library of congress!
I have a 5MB hard drive in my back room somewhere