My Dad worked for IBM for about 30 years (mostly during the boom time for the company from the late 60’s to early 90’s), so the company’s history is a little familiar to me. So yes, they did typewriters, various sorts of machines to handle counting, tabulations, etc. in the time pre-computers (or at least what we think of as computers). Heck, they even made some wall clocks too.
There is a huge section on the company’s history over at their Web site:
It’s a pretty amazing company (and always a great blue chip stock pick).