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Logo's most-known feature is the turtle (derived originally from a robot of the same name), [5] an on-screen "cursor" that shows output from commands for movement and small retractable pen, together producing line graphics. It has traditionally been displayed either as a triangle or a turtle icon (though it can be represented by any icon).
FMSLogo supports multiple turtles, and 3D Graphics. FMSLogo allows input from COM ports and LPT ports. FMSLogo also supports a windows interface thus I/O is available through this GUI- and keyboard and mouse events can trigger interrupts. Simple GIF animations may also be produced with the GIFSAVE command.
Turtle graphics are often associated with the Logo programming language. [2] Seymour Papert added support for turtle graphics to Logo in the late 1960s to support his version of the turtle robot, a simple robot controlled from the user's workstation that is designed to carry out the drawing functions assigned to it using a small retractable pen set into or attached to the robot's body.
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Mr. Bee is the Stately Academy janitor with a secret past. He is based on Seymour Papert, a computer scientist. In the second book, it is revealed that he was the founder of the Bee School, a computer science school that was all but abolished. A few classrooms and plenty of turtles from the Bee School are hidden beneath Stately Academy.
Turtles specifically designed for use with Logo systems often come with pen mechanisms allowing the programmer to create a design on a large sheet of paper. The original Logo turtle, built by Paul Wexelblat at BBN , was named "Irving" and was demonstrated at the former Muzzey Junior High in Lexington, Massachusetts . [ 1 ] "