Lifekeeper — Mike McQuay

WAR WAS THE NEW RELIGION - AND A COMPUTER WAS THE NEW GOD...
Milcon Forty-Three had been ruled by an intricate computer system for so long and no one could remember who has established it or why. So when the computer went haywire, and the death toll began to mount, there was no one who could stop it.
Then Doral Dulan, and Exceptional, and a brilliant computer expert, was called in. His assignment: fix the computer and prevent total extermination. Together with Beatrice Delecorte, a beautiful, rebellious Outsider, he discovered a horrifying secret hidden in the lower levels of Milcom Forty-Three.
And then Doral Dulan decided to make friends with the computer...