[TUHS] /usr/mdec

Angelo Papenhoff aap at papnet.eu
Mon Nov 21 19:56:29 AEST 2022

I was also wondering! My theory was that it stands for Magtape & DECtape,
but not sure. Perhaps ken remembers?


On 20/11/22, Norman Wilson wrote:
> I'm curious about the origin of the directory name /usr/mdec.
> (I am reminded of it because I've noticed that it lives on in
> at least one of the BSDs.)
> I had a vague notion that it meant `DEC maintenance' but that
> seems a bit clumsy to describe a place holding boot blocks.
> A random web board suggests it meant `magnetic DECtape.'
> That's certainly not true by the time I came along, when it
> contained the master copy of the disk boot block(s).
> But I suppose it could have meant that early on and
> the name just carried forward.
> A quick skim of the V1-V7 manuals doesn't explain the name.
> Anyone have any clearer memories than I do?  Doug or Ken or
> anyone who was there when it was coined, do you still recall?
> Norman Wilson
> Toronto ON

More information about the TUHS mailing list