Instruct the compiler that comment will follow.

Syntax

REM or '

Remarks

You can comment your program for clarity.

You can use REM or ' followed by your comment.

All statements after REM or ' are treated as comment so you cannot

use statements after a REM statement.

New is the possibility to use block comments:

'( start block comment
print "This will not be compiled
') end block comment

Note that the starting ' sign will ensure compatibility with QB
Each block must be closed with a ')

Example
REM TEST.BAS version 1.00
PRINT a ' " this is comment : PRINT " hello"
^--- this will not be executed!