From mboxrd@z Thu Jan  1 00:00:00 1970
From: doug@cs.dartmouth.edu (Doug McIlroy)
Date: Wed, 18 Jun 2014 07:06:54 -0400
Subject: [TUHS] Happy birthday, core dumped
Message-ID: <201406181106.s5IB6scu031264@stowe.cs.dartmouth.edu>

> It's always been a bit of a mystery to me why Thompson and Ritchie decided they needed to write a new executive - UNICS - rather than use DECsys.

It was the other way around. They had conceived a clean, simple, yet
powerful, operating system and needed a machine to build it on. A
cast-off PDP-7 happened to be at hand.

Doug