Later, BBN developed a turtle named Irving that had touch sensors and could move forwards, backwards, rotate, and ding its bell. The first turtle was a tethered floor roamer, not radio-controlled or wireless. Modern Logo has not changed too much from the basic concepts before the first turtle. A display turtle preceded the physical floor turtle. The first working turtle robot was created at MIT in 1969. The use of virtual Turtles allowed for immediate visual feedback and debugging. Modeled on LISP, the design goals of Logo included accessible power and informative error messages.
The goal was to create a math land where kids could play with words and sentences. The first implementation of Logo, called Ghost, was written in LISP on an SDS 950. The first four years of Logo research, development and teaching work was done at BBN. Its intellectual roots are in artificial intelligence, mathematical logic and developmental psychology.
Logo was created in 1967 at Bolt, Beranek and Newman (BBN), a Cambridge, Massachusetts research firm, by Wally Feurzeig and Seymour Papert.
