this post was submitted on 22 Jun 2023
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submitted 2 years ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 1 points 2 years ago* (last edited 2 years ago)

There's another interesting fact here: MS-DOS 1.0 didn't have directories.. To print a text file, you could just do TYPE foo.txt > LPT1, since LPT1 wasn't in a directory (like /dev on Linux).

MS-DOS 2.0 added directories. However, to remain backwards compatible with 1.0, devices were still "global". You could still run TYPE foo.txt > LPT1 regardless of which directory you were in.

This is why you can't create files names CON, LPT1, etc. in Windows. They're reserved globally, which is a holdover from the original MS-DOS version from 1983.