Slightly related but I once got a 'behind the scenes' of a bowling alley, I was amazed to see (not sure if still the case, could very well be) how 'analog' the whole machinery was, with a big wheel and lots of mechanical entrapments to pick/collect/replace pins. I think the technical constraints demanded a lot of ingenuity back then.
If I remember correctly they added digital score keeping as an afterthought using camera's (+ software + screens).
Unfortunately, traditional pinsetters are well on their way out. All of the chains now use new models with strings that are much cheaper to operate. Non-chain bowling alleys with traditional pinsetters almost all get displaced by competition from chains and other issues.
I was watching a hacking video on elevators, and some of them are still run entirely analog with no real computers, it's all relays and miles and miles of wire.
If I remember correctly they added digital score keeping as an afterthought using camera's (+ software + screens).