Episode 64 - Gemini's Tiny Machine

Episode 64 - Gemini's Tiny Machine

Today we are talking about computers in space! 1964 saw the launch of Gemini I, the first spacecraft to carry an onboard computer. The aptly named Gemini Guidance Computer was responsible for guidance, navigation, and safe reentry. Built by IBM it weighed in at a tiny 59 pounds. For 1960's technology there just isn't any comparison to make, it was an amazingly small machine. What secrets does it hold? Did IBM crack some secret code to build such a tiny computer?

https://www.ibiblio.org/apollo/Gemini.html - Overview of the Gemini Guidance Computer

https://history.nasa.gov/computers/ch1-1.html - Official NASA History

https://www.ibiblio.org/apollo/Documents/GeminiProgrammingManual.pdf - How the thing was programmed

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Jaksot(204)

LIVE from VCF West - Wait, Is That Really UNIX?

LIVE from VCF West - Wait, Is That Really UNIX?

It's no secret that I've been fascinated by odd UNIX clones for a while. When I got invited back to speak at VCF West this year I decided to share that fascination with a captive audience. In this tal...

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Episode 186 - MADDIDA

Episode 186 - MADDIDA

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Episode 185 - Is EMUL-8ion a Form of Flattery?

Episode 185 - Is EMUL-8ion a Form of Flattery?

EMUL-8 is a fascinating programming language. It's described in just one paper from 1977. It's a mix of features from APL, LISP, ALGOL, and SNOBOL. And, I think, it's a wonderful window into how count...

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Episode 184 - What Is A Programming Language?

Episode 184 - What Is A Programming Language?

I mean that both in the specific and the abstract. This episode we are looking at APL, which stands for A Programming Language. APL was developed in the mid 50s, but didn't see a working implementatio...

21 Kesä 1h 9min

Dale Biagio - Hello, World!

Dale Biagio - Hello, World!

Dale Biagio(author of Hello, World!) got in touch with me recently. He said he had a book full of short histories of programming languages. Better still, it has sources! How could I resist! In this ep...

14 Kesä 31min

Episode 183 - A Digital Gap?

Episode 183 - A Digital Gap?

I've been browsing old compur surveys and trying to build up a comprehensive data set. What I've found is a little surprising: between late 1945 and 1949 only 10 new computers entered service. Once we...

31 Touko 54min

Episode 182 - Spinning Memories

Episode 182 - Spinning Memories

What connects IBM, the NSA, the Third Reich, and high fidelity recordings of symphonies? The answer is: magnetic drum memory. Join me as I lose all track of scope and plot to discovery just how and wh...

18 Touko 58min

Episode 181 - RAYDAC

Episode 181 - RAYDAC

In 1947 Raytheon signed a contract to make their first computer. It would be their last... at least for many many years. The fruits of this contract was RAYDAC. Early digital computers were odd, to sa...

3 Touko 1h 12min

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