''When Mike was installed in Luna, he was pure thinkum, a flexible logic -- ''High-Optional, Logical, Multi-Evaluating Supervisor, Mark IV, Mod. L'' -- HOLMES FOUR. He computed ballistics for pilotless freighters and controlled their catapult. This kept him busy less than one per cent of time and Luna Authority never believed in idle hands. They kept hooking hardware into him -- decision-action boxes to let him boss other computers, bank on bank of additional memories, more banks of associational neural nets, another tubful of twelve-digit random numbers, a greatly augmented temporary memory. Human brain has around ten-to-the-tenth neurons. By third year Mike had better than one and a half time that number of neuristors.
And woke up.''