Ah ha! Thanks for the clarification!

Good thing UPS is a unique acronym that isn't used elsewhere when discussing computers :)

AAAAA

(anti-"ambiguous acronym" advocates anonymous)

The only one I know is the power supply and that doesn't fit the context

It made sense to me - an Uninterruptible Power Supply should be sized according to the power draw of a computer. If these were power hungry CPUs, you would need a really beefy UPS. So that's what I thought they were trying to say!