Verbs, Nouns, and the Apollo Guidance Computer

Verbs, Nouns, and the Apollo Guidance Computer

The Apollo guidance computer used Verbs and Nouns, and it’s a system that makes more sense than you might think!

Suggested reading, if you’re looking for more details:
– Frank O’Brien’s “The Apollo Guidance Computer” from Springer. It’s detailed and fantastic and Frank’s brilliant with this stuff (he’s the source on the “eat pizza” analogy that I think makes SO MUCH SENSE! He’s rad.)
– Computers in Spaceflight: https://history.nasa.gov/computers/contents.html

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50 Comments

  1. Tom Werb on November 2, 2019 at 5:01 pm

    One detail has always bothered me about the Apollo CSM. When photographed on the Launch Pad or during the Launch, the CSM is WHITE. However, when photographed from the LEM during docking, the CSM is mirror-shiny SILVER! How did the CSM change color in-flight? Or is this another piece of evidence that the spacecraft that was launched, never went to the moon????



  2. k7jeb on November 2, 2019 at 5:01 pm

    For a more detailed look at the Apollo computer: https://www.youtube.com/watch?v=ndvmFlg1WmE



  3. Fubar AlAkbar on November 2, 2019 at 5:03 pm

    So it was a bit like an 80’s text adventure: Go north, Get key, etc. Yes?



  4. Noel Raffle on November 2, 2019 at 5:04 pm

    …a regurgitation of previously made LIES …☘️…



  5. Sputnik on November 2, 2019 at 5:06 pm

    Boat anchor. No way…



  6. a b on November 2, 2019 at 5:08 pm

    they didn’t have the computational power to do the moon missions,simple as that



  7. spring 0509 on November 2, 2019 at 5:09 pm

    Tx very interresting 😀👍



  8. Iron Heart on November 2, 2019 at 5:09 pm

    Vintage Space you remind me of Elvira!



  9. 0623kaboom on November 2, 2019 at 5:10 pm

    Shira … as in the astronaut shira .. ?



  10. George Obregon on November 2, 2019 at 5:11 pm

    Cumbersome explanation.



  11. michael eldicott on November 2, 2019 at 5:11 pm

    Just want to say thank you for making your channel. So many questions answered



  12. James Johnson on November 2, 2019 at 5:12 pm

    yeah old Jim lovell had a run in with that thing while in transit i especially love his reaction to it when it happened.used p entry that reset the computer to prelaunch start.



  13. Okoboji on November 2, 2019 at 5:13 pm

    People are smug when talking about the Apollo guidance computer, but this computer would have been an advanced one for its time. In 1969, most computers used switches for input and paper, instead of a monitor, for output.



  14. Shadow on November 2, 2019 at 5:14 pm

    This system was designed at MIT which is probably in the book , one thing this computer had over today’s systems it was crash proof if it"crashed" it would auto reset and start from it left off it was designed to never fail



  15. Michael Herder on November 2, 2019 at 5:16 pm

    There is an Apollo Guidance Computer simulator coded in Javascript. Javascript! That blows my mind.



  16. Christine LaBeach on November 2, 2019 at 5:18 pm

    Is there a DSKY app for iPhone?



  17. Barry Sabahat on November 2, 2019 at 5:21 pm

    Interesting. Thank you for sharing.



  18. Nix Awesome on November 2, 2019 at 5:23 pm

    If you are in US, even if you have a good vocabulary don’t go to the US Police… The only verb they know is "shoot" and only noun they know is "ass".



  19. The Annoyed Mr Floyd on November 2, 2019 at 5:24 pm

    Go north
    Get flashlight
    Use flashlight
    Look
    Get key
    Go south
    Use key
    Open chest
    Get treasure
    ***Win***

    Not unlike AGC verb-noun system.



  20. Jesus Truchuelo on November 2, 2019 at 5:27 pm

    Thanks so much, Amy, for this great video!!. Just a silly question for you…..What is the first idea that comes to your mind, what is your spontaneous, out-of-the-shelf response when you come across a conspiranoic who is convinced that Armstrong, Aldrin & Collins were just actors on a hidden Hollywood set?. Neil Armstrong always said that he had met thousands of "denialists" in every single country!!!. You can upload hundreds of videos explaining the Apollo Guidance Computer or whatever the technology inside the most amazing rocket ever built…..they won´t believe it. They´ll have a counter argument to whatever explanation you may give to them. Yes, I know it´s a very conventional question, but your answer will be interesting to know. Thanks!!!!.



  21. justin h on November 2, 2019 at 5:28 pm

    The noun/verb thing reminds me of microsoft powershell commands

    No, i dont like microwoft. I <3 Linux



  22. 0623kaboom on November 2, 2019 at 5:28 pm

    it is funny how few people today understand that back then programmers had to write compact and optimized code from the start …. none of this duplication and bloatware we have today … not to mention all of it was done in basic machine code ….



  23. Stan .Rarick on November 2, 2019 at 5:28 pm

    "I love how verbs 50, 51 and 53 are "PLEASE…."
    https://gist.github.com/jeffThompson/21a72eadf545ede99279



  24. Perigee 400km on November 2, 2019 at 5:30 pm

    4:41 Wow I love this scene



  25. Ramon Medina on November 2, 2019 at 5:30 pm

    Ohhhh Mannnnn ist die Hot!



  26. scott whitear on November 2, 2019 at 5:31 pm

    Thank you Amy for this awesome video



  27. Noosic on November 2, 2019 at 5:31 pm

    Love the accent Eh? Calgary? Saskatoon?



  28. boruff68 on November 2, 2019 at 5:35 pm

    Thank You SOOO much ! I FINALLY have a pretty good grasp on what was going on with using the guidance computer after all these years! (No Joke) 😉 Good job Amy.



  29. RedDragon Smaug on November 2, 2019 at 5:36 pm

    I had this app on my iPhone years ago. I really wish I didn’t delete it 😩



  30. James Turner on November 2, 2019 at 5:38 pm

    Epic video.



  31. Perigee 400km on November 2, 2019 at 5:38 pm

    V37E01E



  32. Struggling Artist on November 2, 2019 at 5:41 pm

    She is terrible. Gross



  33. Moraren on November 2, 2019 at 5:44 pm

    I suggest that anyone here interested in the AGC, should also check out CuriousMarc here on yt. He is just finishing a series where he and some other guys restore an AGC up to running condition. Facinating stuff that went into that computer!



  34. Shubham Kumar on November 2, 2019 at 5:47 pm

    Best video on the internet.



  35. John Balls on November 2, 2019 at 5:48 pm

    Why is your intro so similar to those terrible SpongeBob porn movies?



  36. Fermioncool Fermioncool on November 2, 2019 at 5:50 pm

    very clear explanation



  37. WIDave0311 on November 2, 2019 at 5:51 pm

    Do not miss this video…
    Apollo 11: The Complete Descent
    A detailed account of every second of the Apollo 11 descent and landing.
    https://www.youtube.com/watch?v=xc1SzgGhMKc



  38. ccpd1505 on November 2, 2019 at 5:51 pm

    Great teaching style. Comprehending material made simple!



  39. Dimitris Giakoumis on November 2, 2019 at 5:52 pm

    There’s an emulator of it online! http://svtsim.com/moonjs/agc.html



  40. rapid13 on November 2, 2019 at 5:53 pm

    Seriously relevant right now. This is hugely helpful as I listen to apolloinrealtime.org!



  41. Simon Coles on November 2, 2019 at 5:53 pm

    the Apollo Guidance Computer is one of the most impressive pieces of hardware ever made.



  42. Snax on November 2, 2019 at 5:54 pm

    Very nice video.
    There is a minor difference with the V37 command.
    Instead of typing V37N31E, the command was to be entered as follows "V37E31E" so the AGC knows you wanted to change a Major Mode.



  43. wiedep on November 2, 2019 at 5:54 pm

    @ 4:53 astro inserts a ? to the left of the keyboard. Any ideas?
    BTW- avoid any NYC pizzeria with "famous" in it’s name…



  44. jay private on November 2, 2019 at 5:54 pm

    Amy have you been following the guys who brought a agc back up and running?. In fact one kid remade the original apollo core memory in an fpga (for testing the agc in a few days i hear) it ran above spec in true and even timing . The project is phenomenal



  45. Fox MacLeod on November 2, 2019 at 5:55 pm

    I love your videos, and honestly just the fact that you you exist. Also, you’re a very good storyteller, by the way. It is enjoyable to just set it to auto-play and hear some great space tales from the nooks and alcoves of history.



  46. James Byron Dean on November 2, 2019 at 5:55 pm

    LEM DSKY, rope memory, 64K. Included NASA CARE with realtime monitoring.



  47. Okoboji on November 2, 2019 at 5:56 pm

    On Earth, astronauts and policemen are not several stories tall.



  48. pieter pretorius on November 2, 2019 at 5:56 pm

    so verb is like a function and noun is a parameter of that function



  49. Daniel Pierce on November 2, 2019 at 5:57 pm

    “It didn’t have a keyboard”….”ok so this is its keyboard”



  50. heatshield on November 2, 2019 at 5:58 pm

    prog 77 eh? 😎