SYSBEEP is a read-write boolean system variable controlling whether system sounds are on or off (such as the sounds made by the 'keyboard').
SYSBEEP always gives a result of
TRUE), indicating the sounds are on, or
FALSE), indicating the sounds are off. When writing a value to
SYSBEEP, that value is rounded down, and if the result is 0, then
SYSBEEP is set to
FALSE, otherwise it is set to