Yup, the categories are very fluid now. Considering how many businesses "run" on some various software packages these days, they all have some sort of mainfram

Yup, the categories are very fluid now. Considering how many businesses "run" on some various software packages these days, they all have some sort of mainframe, but it's not likely to be one computer. I think, only the minicomputer is really gone. There just isn't the same sort of way of using the computer that there was in that time.