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Creates complex moving patterns of lines and curves in response to touching the screen. Kaleidoscope is based on an anonymously written program of the same name for the DEC PDP-8 computer. It was somewhat remarkable because the original program was only about 40 bytes long yet generated complex moving patterns consisting of various conic sections (circles, ellipses, parabolas and hyperbolas).

Lunar lander simulations debuted in 1969 just as the Apollo program was landing man on the moon. Minicomputers like the PDP-8 were showing up in industry and schools and a common way to use these expensive machines was to share its limited resources with others. Out of this environment came a high school student with a passion for math and NASA's Apollo program and the result was a lunar landing simulation that was for many their first introduction to computer gaming. Now you can experience how challenging it was to develop soft...