CP/Mer

Etymology
From.

Noun

 * 1)  A user of CP/M.
 * 2) * 1983, Thomas A Dwyer, Margot Critchfield, CP/M and the personal computer:
 * The best advice to Apple CP/Mers is, "Enjoy &mdash; but don't try to change too much."
 * 1) * 1985, Personal Computing:
 * Could you do me, and perhaps other CP/Mers, a favor and supply a few contact points for the First Osborne Group.