System

 was the computer that helped in the medical and administrative duties at St Gart's Brookside Hospital. (AUDIO: The Harvest)

Its creation was when Katherine Chambers was trying to find a way to revert her brother, Nathaniel Chambers, cyber-conversion. With help from forge operative James Clarke, they created a machine to help diagnose and treat people as a product of their research. They kidnapped Katherine's secretary Eve Morris, and placed her conciousness in the machine and became the voice. As well as containing cyber-technology, it contained elements of Time Lord technology as well. (AUDIO: The Gathering)