Vector Sigma

Vector Sigma is an ancient and incredibly powerful multiversal supercomputer in Cybertron. The entrance to it was, unknown to the Decepticons, located beneath their own capital of Kaon.

History
It remained there untouched throughout the Great War until Jack Darby and Arcee followed the Key to Vector Sigma to it.

In the chamber below the planet's surface, Jack used the Key to activate it and began to download the contents of the Matrix of Leadership. Despite an attack of Scraplets and an Insecticon, the download was successful and Vector Sigma disappeared back into the depths. Arcee mentioned turning to Vector Sigma in Predacons Rising.