this post was submitted on 04 Nov 2026
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People talk about the legacy of the floppy disk (mid-eighties to mid-aughts) being used as a save icon, but drive letters are even more extreme - and absurd - than that.
CP/M came out in 1974 and introduced drive letters A: and B: for floppy drives, and Microsoft copied that for DOS and the early DOS-based versions of Windows. Microsoft finally killed off the DOS lineage with Windows Me in 2000, so that was 26 years of drive letters actually being part of the OS' architecture.
Windows NT came out in 1993 - 19 years after CP/M - and didn't use drive letters but for the sake of backwards compatibility and familiarity it would emulate them. All versions of Windows since 2000 are based on NT. So we had 26 years of drive letters being needed, and 33 years of faking it for consistency.