I attended IBM Basic Training in January of 1988 with this group of people. We were on third shift in Chicago in the winter. The training consisted of basic electronics on up to learning to fix various computers (I can’t remember the models at this time).
Every evening as we walked to the IBM building from the Hyatt, our temporary home, the wind from the river faithfully met us to freeze us to the bone. It was the first city where I saw ropes around the building to prevent people from falling.