> a proper 'cattle not pets' convention (which, by the way, isn't covered by TFA). It is: ... Of course, they could have called the second one "shop2" and so

> a proper 'cattle not pets' convention (which, by the way, isn't covered by TFA). It is: ... Of course, they could have called the second one "shop2" and so on. But then one is really only distinguishing machines by their number. You might as well just call them "1", "2", and "3". The only time this kind of naming scheme is appropriate is when you have a lot of machines and there are no reasons for any human to distinguish between them. For example, a master computer might be controlling an array of one hundred computers. In this case, it makes sense to refer to them with the array indices.