In the English communities, people usually talk abou the computers
using the following words: computer, machine, box..... For instance,
people may say " We have two AIX boxes". In my above posting, I made some typos. What I really meant is AS/390 and AS/400 boxes.
Indeed, AS/390 and AS/400 are still being used. But they are not in the mainstream. If you stick to AS/390 and AS/400, your road will be very narrow.
Sorry again for my misleading typos.