What have I been up to?

Last summer I came across my somewhat tattered copy of the PDP-11 Processor Handbook. This dates to my first job as a software engineer in the early 1980s for EMC Controls. EMCC was a process control system manufacturer whose products ran everything from bakeries to steel mills to the Trans-Alaska Pipeline. A descendant runs the ventilation systems for some of Boston's road tunnels. I got hired…