Towards the end of the movie the kids use the computer to lock the doors. This is the great moment of fsn (“fusion”) the File System Navigator which is a real demo application and was not written for the movie. A binary was available from the official Silicon Graphics website for a long time.
And the movie portrays it accurately, too. Waiting for the 3D flyover to render feels painfully slow, regardless of how many doorknob mastering dinosaurs are trying to kill you.
The funny thing is that, unlike fake UI in other movies, this was indeed a real demo for silicon graphics computers: http://www.sgistuff.net/funstuff/hollywood/jpark.html
Dead link
And the movie portrays it accurately, too. Waiting for the 3D flyover to render feels painfully slow, regardless of how many doorknob mastering dinosaurs are trying to kill you.