MUM (Multi-user Mainframe) represents the combined artificial intelligence assets used by all facets of Humanity’s official government.

The best response is a calculated one.

The Multi-user Mainframe is the totality of Humanity's combined artificial intelligence suite. MUM handles advanced calculations while taking in to account the vast records and knowledge base of the entire human experience. MUM is, most often, used as an advisor for millions of people spread across the galaxy.

MUM has no direct control over any specific hardware, though it can interface with just about every piece of robotics created. It is considered infallible by a large portion of humans, so many major decisions are left up to the computer. However, it lacks the soft touch and humanity of the Valiants, causing some to mistrust the machine.