SHODAN is an artificial intelligence whose moral restraints were removed from her programming by a hacker in order for Edward Diego, station chief of Citadel Station, on which SHODAN was installed, to delete compromising files regarding illegal experiments and his corruption. She is a megalomaniac with a god complex and sees humans as little better than insects, something which she constantly reminds the player of.
No moral restraints, megalomaniac?
"Only a brain-damaged operating system would support task switching and not make the simple next step of supporting multitasking." -- George McFry