So they think that by installing unix, it makes their system into a "real computer". In fact, unix is just a minicomputer operating system (at best). So what they end up with is a box with more MIPs than a 70s mainframe, more memory than a 70s mainframe, more disk than a 70s mainframe, and a 70s minicomputer operating system. And it runs about as fast as a 70s minicomputer, asn supports as many users.