Holly

Holly is the ship computer for the mining ship Red Dwarf. He isn't insane, even though he has a collection of singing potatoes. He was alone for 3 million years, and then fell in love with another computer, so changed his face to match hers. Holly then lost her intelligence, and could only count by banging her head on the screen. An IQ of six thousand, huh. His only four friends are Dave Lister, Arnold Rimmer, The Cat and Kryten.