Ian Watson 
Hard Questions 

Meet Qua, the quantum computer with the immense power capabilities that tunes into pathways in parallel universes to operate at lightning speed. But with such power comes the threat of catastrophe, and as government agents, cult disciples, and computer criminals learn what this computer is capable of, Cambridge researcher Clare Conway makes every attempt to safeguard herself and society from the realities she discovers about Qua. For all of the power this computer offers, it threatens to spark a civil war in America, a danger unlike any other that history has ever known.