The ENCOM SHV 20905 Digitizing Laser.
The ENCOM SHV 20905 digitizing laser (aka the Shiva laser) is the conduit by which users pass from the real world into the Tron system. It is operated from a nearby computer and is coupled to powerful server hardware that contains all of the software platform and program code of the Tron system.
The SHV 20905 was built in the mid 1980s, and is an updated version of ENCOM's previous laser built in 1982. Since 1983, it has been hidden in the basement of Flynn's Arcade. Kevin Flynn frequently used the laser to enter the Tron system until his disappearance in 1989. In 2010, his son Sam inadvertently activated the laser and was struck by it when exploring the basement of the arcade. This resulted in the younger Flynn being transported into Tron City like his father before him.
Behind-the-scenes
The laser is named Shiva after the real-life Shiva laser located in Lawrence Livermore National Laboratory, which was used in the filming of TRON.
