Digital Equiptment Corp? 1960s? Wow, although not quite the dawn of digital. Amazing to think that Power plants still use MS XP.
I worked for GE in the 1990’s, as a generator and excitation specialist. I routinely worked on equipment that had been installed in the 1950s. I was at a paper mill once and a lot of the equipment the was war surplus, you could tell because it had”war emergency” nameplate values. The oldest unit I worked on was installed in the 20s. The generator controls were patented during the first world war.
And then PCs ate the workstations' lunch.
Then mobile devices ate the PCs' lunch.