Grid computing takes advantage of the available 75% of unused processing power of a computer and links thousands of individual computers around the world creating a that can process intensive tasks.

The answer is "Virtual supercomputer"

Explanation:

A supercomputer is a machine with or close to a maximum fastest operating output. It commonly used in science and engineering systems, that have to manage or calculate massive server numbers.

the answer will be d

this seems to be in the wrong category. but i'll take some free points my dude

posting this in wrong category will result in people seeing it who won't know the answer.