Page 66 - Computer Class 03

Logo Turtle Head of

Turtle
Logo uses turtle to draw figures and lines on the
screen. Turtle looks like a little triangle on the
Tail of
Logo screen. It works like a pen to draw figures Turtle
and lines on Logo screen. The pointed end of the

turtle is called head and wider end of the turtle is
Turtle
called its tail .
Turtle can move right, left, backward and

forward on our commands or instructions.

Home of the Turtle

Whenever you start Logo, you can see that turtle is in the middle of the
screen. This is the starting position of the turtle and is called home of
the turtle. The blank area where the turtle moves is called the field of

the turtle.

Logo Primitives

The commands that we input in Logo are called the Logo Primitives .
These commands or primitives are written in the Command Input Box.

After writing the command, either pressing Enter key on the keyboard
or clicking on the Execute button from the Command buttons is

required.

Some of the commonly used commands are:
Home Command : This command is used to bring back the turtle to its

initial position, i.e., centre of the screen.

Command : HOME Enter/Execute

Cleartext (CT) : This command is used to clear the text from the Recall
list box.

Command : CT Enter/Execute.

Clearscreen (CS) : This command is used to reset the screen to its
home position. It deletes all the drawings from the screen and brings

the turtle back to the centre position.

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