I'd like to hear the story of why a McDonalds would need a PDP. Weren't they...expensive? They would be at the heart of university's IT department, or running a steel mill. Stuff like that. But until PCs came out, at a restaurant I can only picture registers and a dumb terminal hooked up to a distant mainframe.
The logistics improvements from early computers were massive. If you compare the equivalent price nowadays it's not worth it compared to other options, but going from paper to computing wasn't just an incremental improvement but allowed for entirely new abilities.
It wasn't like having an account to crunch all the numbers on staff full time was cheap. Especially when you'd have to have 3-4 accountants just to have 24 hour service, regardless of the work load
