1) ATM card user 2) Editor, at times 
A device which adds teletext data to a television signal.
(1) an iostream 
(also alphanumeric video generator). A device for providing additional information, normally superimposed on the picture being displayed; this can range from one or two characters to full-screen alphanumeric text. Usually, such generators use the incoming video signal sync pulses as a reference point for the text insertion position, which means if ...