Older than you might believe! 

Here is an according screenshot as proof. There even was a special patch for correct amber monitor display. (**)

Hubert

(**) HINT: That screenshot is pure fiction! My fake which I made with an ascii/bmp-editor nearly a decade ago and that presumed patch really never existed.  :)

"All that we see or fear, is but a Sphere inside a Sphere."     (E. A. Pryce -- Tuesday afternoon, 1845)