"Marvin Minsky's Revolutionary Logo Computer"
Marvin Minsky, co-founder of the MIT AI lab, developed a computer called the Turtle Terminal TT2500 intended to run Logo applications in an educational environment. The machine used 16-bit user-definable instructions and had a dual display configuration for text and real-time graphics. It became a display terminal for a connected computer due to its tiny control store. The original schematics for the TT2500 are now available for examination. A simulation of the TT2500 running atop a PDP11/45 emulator has been created by Lars Brinkhoff.