The first computer I used was in 1979. This was actually a Tech school training device with which I was learning how to fix computers.
The next one I handled around then was a Radio Shack TRS-80 or maybe it was my friend's Apple IIc in '79-80.
Then, once I was hired by DEC as a Field Service Tech in my first 'serious' Tech support job, I had to fix one of their PDP-8 peripherals. Mercy, what an near-antique it was even then. DEC believed in cradle-to-grave FS support of whatever they created.
I remember those Rainbow PCs. Weren't they introduced in 1982? DEC muffed that one pretty bad, I thought.