JN-66
this was a model of librarian droid, used by the Jedi Knights to provide access to their immense archives found on the planet Coruscant, during the last decades of the Old Republic. Developed and manufactured by Cybot Galactica, the JN-66 droid had a flat, goggle-eyed head, and its body was supported by a pair of small, disk-shaped repulsorlifts. Two pairs of photoreceptors allowed JN-66 to view minute details of objects, giving it a greater set of data with which to investigate the archives.