"...raise you a comptometer."

45 years ago, I worked at a business school that still taught comptometer.....and keypunch... and a big calculator machine that did accounting and printed data-- all mechanically with hundreds of moving parts. I actually had to learn some basics of some of them.... arrrgghhh!

It isn't necessary -yet- to be 'old' to remember when a large grocery store (like I worked at for years) was NOISY as all the mechanical cash registers were running. But it was amazing to watch the repairman disassemble one of those things!