The S.C. Magi System (マギ) are a trio of supercomputers designed by Dr. Naoko Akagi during her research into bio-computers while at Gehirn. The Magi's 7th generation organic computers were implanted with three differing aspects of Dr. Naoko Akagi's personality using the Personality Transplant OS (Operating System). [...]
The three original Magi in Nerv Headquarters collectively form the set Magi 01:
Magi-1: Melchior: Dr. Naoko Akagi as a scientist;
Magi-2: Balthasar: Dr. Naoko Akagi as a mother;
Magi-3: Casper: Dr. Naoko Akagi as a woman.