[AFreeBird]

You had a PS/2 in 1982?

[Carriage Hill]

My error, it’s not 1982.

I still have it in my basement, but I found the yellowed, crinkled receipt, and it’s dated May 1988, not 1982. I don’t know how I came-up with that date, honest-to-heck.

The numbers on the back of the unit are:

IBM Corp, Armonk, NY
(c)1981-1987
IBM 8550
S/N 72-8118522
Type 8550-021

Here: http://www.supervinx.com/Retrocomputer/IBM/8550/021/