Re: Mini computer
All constantly running their own individual applications and hammering the I/O for data?
A website is very different to the typical load a minicomputer would run. It can cache most of the data, for a start. And it isn't doing constant processing of data, such as looking for oil in a seismic survey, or manufacturing processing loads, it is serving up the same pages with the same information time and again and not constantly, people load a page, digest, load a page, digest... On a mini, it is controlling the whole session.
A terminal server, with the ERP system running directly on the TS, along with its database, would be a better example. If you throw a big enough server at it, it is possible, but a Pi or even a desktop PC wouldn't be able to cope.