More Pc Logo Turtle Commands images. Download Pc Logo Turtle Download Software - best software for Windows. LIOGO: LIOGO is a Logo compiler for.NET. Logo is an interactive programming language mainly.

Logo Tutorial Logo Tutorial History Logo was developed in the late 1960s at Bolt Beranek and Newman, Inc., in Cambridge, MA by W. Bobrow and S. Its purpose was to teach children to program. Its central feature is that it provides simple commands for moving a ``turtle' on a surface. Initially the language was used to direct the motion of a small robot that was dressed up to look like a turtle. It was placed on a sheet of paper and dragged a pen underneath it, thereby drawing figures on the paper. Today the ``turtle' is a small arrow-like figure that moves on the screen of a computer.

Underneath, Logo is very much like Lisp, the list-processing language used in Artificial Intelligence, the branch of computer science that tries to make machines behave intelligently. Make Music Finale 2011 Isole. However, it also has features of other languages, including Pascal.

The Logo Environment The Logo in use at Brown is Berkeley Logo. It can be activated by selecting it from the left Menu button. You will have to position a window on the screen.

We will call it the command window. Another window will appear, possibly on top of the command window. If necessary, use the middle mouse button to move it (drag the top of the window) so you can see the command window again. Prompt is presented in the comand window. At the prompt, commands can be issued that are executed immediately.

When a drawing command is issued, say, the command forward 10, a graphics window appears which must be positioned on the screen. The graphics window in this case shows an arrowhead (the turtle) with a line behind it that is 10 units long. When other drawing commands are issued, such as rt 45 fd 60, the turtle turns right 45 degrees and then advances another 60 units. The command cs will clear the screen and reposition the turtle at its center.

Sometimes you will need to stop a Logo procedure. Do this with ^c (control c). To exit logo, type bye in the command window. Logo the Language This tutorial provides the rudiments of the language, enough to do the simple assignments that are given in CS4. The commands that we explain are drawing commands, variables, arithmetic operators, and procedures, including recursive procedures.