What meaning of clrscr?

Hello! Amar,
clrscr() is a function in C language.
The expansion of clrscr is "Clear the screen".
This function is used to clear the information that is already displayed on the monitor screen.
Hope this information is useful to you.
Bye.

Purpose: (CLeaR SCReen)
Clears the display screen (or the area within the region defined by the
Window procedure) and sets the screen color to the current TextBackground
color. The cursor position is set to the upper left corner of the screen (or
Window region).