SYMBOL FOR GROUP SEPARATOR
SYMBOL FOR NULL
SYMBOL FOR END OF TRANSMISSION
SYMBOL FOR ENQUIRY
SYMBOL FOR BELL
SYMBOL FOR BACKSPACE
SYMBOL FOR HORIZONTAL TABULATION
SYMBOL FOR VERTICAL TABULATION
SYMBOL FOR FORM FEED
SYMBOL FOR NEGATIVE ACKNOWLEDGE
SYMBOL FOR SYNCHRONOUS IDLE
SYMBOL FOR CANCEL
SYMBOL FOR ESCAPE
SYMBOL FOR DELETE FORM TWO