Philips Videotext HCS 121. Computer designed as a videotel terminal and for teletext programming. It was part of a set aimed at creating and exploiting teletext content. The set, which stood out for its light gray color, consisted of an HCS 280 computer (based on the NMS 8280), this HCS 121 terminal and the HCS 80 terminal, with a monitor and retractable keyboard similar to the French Minitel 2.