CLS

The CLS command clears the screen.

Syntax

CLS

• CLS command may be used in a program.
• The screen may also be cleared by pressing CTRL+ HOME
• CLS returns the cursor to the upper-left corner of the screen  

Example 6

CLS  (press enter key)

It clears the screen.

SYSTEM

The SYSTEM command is used to return to MS-DOS.

Syntax

SYSTEM

• The SYSTEM command closes all the files before using sysyem command and it returns to MS-DOS.
• You have to save the program before using system command and pressing the ENTER key. otherwise the program will be lost.

Example 7

SYSTEM  (press enter key)

It returns you to the MS-DOS prompt (e.g. C:\>).