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Last night I got access to a digitized film reel from 1969 that shows off a computer artillery game called Potshot. And to explain why that’s a big deal, I need to talk about Dartmouth and the BASIC computer language.

In 1963-64, university faculty John Kemeny and Tom Kurtz developed the Dartmouth Time Sharing System, a time-share system notable for its speedy responses and accessibility for students and staff alike.

This was augmented further by their development of the BASIC computer language in 1964. That’s where a certain physics professor came in. Arthur Luehrmann saw the value of this system for education and entertainment early on, becoming an early evangelist for BASIC.

Luehrmann developed Potshot as an educational tool to show his physics students about gravity and velocity in an entertaining way. You can learn more through my interview with him from a few years ago: www.atariarchive.org/an-interview...

He developed two different versions of Potshot: a terrestrial one where players take turns shooting at each other over a mountain, and an orbital version that places the cannons in space.

While many DTSS programs still exist, as far as I know Potshot is lost. For decades we didn’t even know what it looked like beyond the PCC article. But Dartmouth’s library still features materials related to DTSS, including some film reels. I took a chance and reached out earlier this year.

I requested that one, Timeshared Computer Graphics, be digitized. I got the file a couple days ago and it surpassed my expectations, as it had a lengthy demonstration of both versions of Potshot!

We know now that Potshot didn’t use a standard teletype or a display monitor; Luehrmann explains in the film that the former was too slow and both too expensive to operate or own, respectively. Instead, it uses a plotter (or a storage display screen, a very specialized kind of monitor)!