I have been using excel1040.com, a federal income tax spreadsheet since 2013. The URL is

https://sites.google.com/view/...

It has all of the forms and schedules I need. I mostly just enter my W2s, and 1099 income and it places the amounts in the right place in the 1040, or wherever they go. Some of the schedules need additional inputs. When I'm done I print the forms I need to file. They look just like the IRS forms.

By the way, did I mention that this is free? The author would appreciate a donation, but there is no adware.

Let's not forget the ABC (Atanasoff-Berry Computer) built in 1939, years before the ENIAC. https://www.thegazette.com/fac...