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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.
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).
a touch screen is a direct, absolute, isometric, position-control input device with two or more degrees of freedom (x, y position and optionally pressure) and two states (out of range, dragging). a joystick is an indirect , relative , elastic , rate-control , translational input device with two degrees of freedom (x, y angle) and two states ...
The game is thus a "one player co-op" game. [7] An example of a task where the player must attempt the level more than once is a level where the player must click on a box 99 times within a specific time where the time is short enough to make the task impossible in a single attempt.
The mouse sends these signals to the computer system via the mouse cable, directly as logic signals in very old mice such as the Xerox mice, and via a data-formatting IC in modern mice. The driver software in the system converts the signals into motion of the mouse cursor along X and Y axes on the computer screen.
iRobot Create and its predecessor Roomba, turtle-like robots originally designed for domestic use; Player Project, a free robotics suite. Curses (computer game), an interactive fiction game by Graham Nelson that includes a voice-operated turtle in one of its more difficult puzzles; Unicycle cart, for a mathematical model of the dynamics of a ...
Mouse tracking (also known as cursor tracking) is the use of software to collect users' mouse cursor positions on the computer. [1] This goal is to automatically gather richer information about what people are doing, typically to improve the design of an interface. Often this is done on the Web and can supplement eye tracking in some situations.
Turtle (robot), a class of educational robots used most prominently in the 1970s and 1980s; Turtle (syntax), a Terse RDF Triple language; Turtle F2F, a tool for exchanging content in an anonymous and secure way over a friend-to-friend (F2F) network; Turtle graphics, using a relative cursor, the "turtle"