The ship who sang - Anne McCaffrey

The brain was perfect, the tiny, crippled body useless. So technology rescued the brain and put it in an environment that conditioned it to live in a different kind of body - a spaceship. Here the human mind, more subtle, infinitely more complex than any computer ever devised, could be linked to the massive and delicate strengths, the total recall, and the incredible speeds of space. But the brain behind the ship was entirely feminine - a complex, loving, strong, weak, gentle savage - a personality, all-woman, called Helva...