Warning: Trying to access array offset on value of type bool in /www/webvol7/87/43jkxtuci0c37o3/text-mode.org/public_html/wp-content/plugins/search-everything/config.php on line 29
text-mode.org

Morse code, Punched card recording medium, Binary numeral system, Baudot code and dot matrix printer for the TM cover design by Heinrich Fleischhacker (1975).