I've been using computers since the 1970s when I started using RSTS/e on a PDP-11/23+ with a 300-baud modem and a printing terminal.
My first computer was the DEC Rainbow which I've owned since 1983. I have recently started to accumulate articles about the Rainbow from contemporary sources (newsletters, trade press, etc).
In addition, I've been collecting history of unix articles from original sources.
Professionally, I hack on the FreeBSD kernel.