Re: Jobs/tasks that require high performance computers?
Mostly, server environments, or, in companies where speed is needed when opening and editing database files and documents. Speed isn't usualy NEEDED on work stations, though, it is nice to have so the workers are more "productive" and if they have plenty of RAM, they can have multiple documents/programs/database files open with out waiting to switch around.
Other than that, a high powered machine isn't needed, it is wanted by consumers just because they like quick/snappy things and not waiting minutes to do simple tasks, what's pushing computer power these days is gamers, and corporations that need fast servers and networks.
One last thing (rarely seen at all, except in schools or simple internet cafes) is a single computer, that has multiple terminals attached to it, you are basically turning one machine into several at this point, and the system MUST have enough resources to support all the users on it at once, so a FAST processor, and high quantities of memory are needed to satisfy users.
Other than those, you end up in areas where music/video editing are needed, and if they can encode a two hour video in 4 hours instead of 30+ hours on another machine, which one do you think they will pick for productivity reasons?
All in all, it comes down to people wanting, and not needing higher end machines, most of us, are just techs, we fix, and repair computers for other people that don't want to learn, or don't have the time to learn.