Tristar & Red Sector Incorporated (TRSI) is a demogroup which formed in 1990. It came about from the longest-running cooperation in scene history. RSI existed from 1985, before being joined by the "T" later on. Evolving from the Commodore 64 to the Amiga and later to PC and various game console platforms - like the PlayStation, Xbox, Nintendo - and set-ups like Arduino, Android or Blu-ray, TRSI released a number of digital productions, dedicated to experimenting in phreaking or network alteration. Its members were spread around the world and still contribute to computer scene art and code after more than 27 years of history.
Source: Wikipedia, "Tristar and Red Sector Incorporated", available under the CC-BY-SA License.