 The world of "Ghost in the Shell" features significant advances in technology, the most significant of which is the cyberbrain, a mechanical casing for the human brain that allows mental interface with the Internet and other networks.A is a device in the fictional universe of "Ghost in the Shell" by Masamune Shirow (and also in Shirow's later work "Real Drive") that acts as a self-contained module containing, protecting, and interfacing an artificially augmented brain.The "brain" includes the brain stem but excludes the eyes, optic nerves, and most of the spine.