A lisp-like language for teaching programming, noted for its "turtle graphics" used to draw geometric shapes. LOGO was developed in 1966-1968 by a group at bolt, beranek & newman headed by Wally Fuerzeig <[email protected]> and including Seymour Papert <[email protected]>.

There are Logo interpreters for macintosh, unix, ibm pc, x window system, and many PCs. Implmentations include berkeley logo, mswlogo.