 Versions of PILOT overlaid on the BASIC interpreters of early microcomputers were not unknown in the late 1970s and early 1980s, and Byte Magazine at one point published a non-Turing complete derivative of PILOT known as Waduzitdo by Larry Kheriarty as a way of demonstrating what a computer was capable of.1983's Vanilla PILOT for the Commodore 64 added turtle graphics, as did "Super Turtle PILOT" which was published as a type-in listing in the October 1987 issue of COMPUTE!magazine.