Question

which is command in MSW LOGO to clear text and clear screen

Answer 1

For clear text = CT
For clear Screen = CS

Answer 2

CT for Clear Text and CS for Clear Screen  is the command in MSW LOGO to clear text and clear screen

MSW LOGO has two parts which is Drawing window and command window.

Command window has textual input / output which can be cleared using the command CT. Drawing window contains graphical objects which can be cleared using Clear screen.

You can use any geometrical features and draw staircase, basic shapes, etc. It has certain commands like penup, pendown, hideturtle, show turtle etc.