100 thoughts on “How did the Apollo flight computers get men to the moon and back ?

  1. Very informative video, as is usual from this presenter. Straight to the point, concise and non-chirpy. Great!

  2. I’m impressed. This is a clear explanation for a general audience of some complex information — especially, of just what was going on with the LEM’s computer, and the repeated error codes, during Eagle’s descent. The explanation is so good, I almost understood what happened in that episode!

  3. Couldn’t use an iPhone the battery wouldn’t last lol

    Nah but seriously we still haven’t been back since, how sad is that.

  4. So the next Moon mission won’t cost very much if all the computing can be handled by a couple of iPhone 6’s.

  5. Next time they're going to send a rocket load of sandwich makers.. and they will be black, trans, and of course butch

  6. 4:30 It's also astounding at how wasteful modern forward thinking computing is. Little regard is given to the size of the program or the resources it consumes. Just buy more or bigger CPU's, more powerful GPU, more RAM, etc. Bloat ware is rampant and no longer a real consideration today. However if you look at the retro computing communities they are doing astounding things on retro hardware things the original creators and programmers never dreamed of. These retro programmers are squeezing every ounce out of retro hardware based on new techniques that didn't exist back then and armed with a better understanding of the systems than of days past. I wonder what amazing things will be done with our current computing resources when the retro communities of the future have a crack at it.

  7. So you couldn’t watch funny fail videos on youtube on the way to the moon? What a bummer that wouldn’t been.

  8. L'orbita bassa e sparita 🤣😂🤣😂🤣😂🤣😂😂😂😂😂non si va e non si viene….🤡🤡🤡🤡🤡

  9. I always chuckle when people say you'd need a NASA computer to run this and that. NASA has such lengthy procedures to certify computer hardware space worthy that everything that is sent up into space could be a decade behind current computers at launch. To see the opposite here was quite surprising.

  10. the idea that you can manoeuvre a Saturn five rocket with sextant that is 100s of years old, Bligh staring at the stars from the other side of the moon instead of the deck of the Bounty,

  11. Great video. I still think you would make a fantastic Bond villain, unfortunately the new 007 is a black female SJW. The world is going to hell quickly.

  12. 😄😄😄😄 come on.. We don't have the technology to go back to the moon what the bunch of bullocks


  13. With today's technology we should be going to the moon every month……and yet NASA said they have lost the technology to return….hmmmm

  14. I guess in reliability parameter AGC will beat linux, apple and Windows by million times. i have i5, 8 gen, 16 GB with Windows 10 and still i am shaky while i am doing a video call with clients abroad as my Windows 10 crashes atleast one time in day and i always pray it does not crash atleast during the call with a bad experience

  15. Not sure the AGC wasn't a general purpose computer… It did limited tasks because that's what was needed, but in theory it could do anything

  16. I have some rocking horse shit if anyone wants it for their garden…
    So the landers had these four little computers… Then what the F were all those in NASA for?
    NO MAN ever walked on the moon.
    It was filmed by KUBRIK. full stop.

  17. "Houston, the Eagle has landed. …Houston?"
    "Wait what? Sorry Eagle.. we were playing Pong. Say again, what's your status?"

  18. How does this limey know jack shit about all this they dont even have a fake space program to bilk there citizens out of billions the lovely queen just takes it

  19. I always enjoy watching your great videos full of information and accessible to non specialist. Guess what?! I've just realized that I did subscribe to your channel. This is no longer the case. I'm in.👍🏿😊

  20. Excellent presentation! It shows that NASA, as well as other aerospace agencies across the world, at that time and even to just a few years ago used computing as a tool to assist humans, not to replace human input all together.

  21. Fantastic great bit of info there, makes me want to visit the space museum to see all technology used in the Apollo missions.

  22. 4 calculators was all that’s required to guide the craft? That’s incredible. Makes you wonder why we haven’t been able to go back. Losing the telemetry data along with the technology didn’t help. We’ve got better technology and communications now, but according to NASA we are still working on how to protect humans from the massive amounts of radiation in the Van Allen belts.

  23. Simple, if you want to avoid crash then don't use apple or windows os, that way you don't end up being a pancake on the surface of the moon.

  24. Droid, I am very lost here, how is it possible to navigate via sextant without a horizon. I am familiar with this navigation instrument, not having used one however, understanding the principle. Again, though it is completely reliant on measuring celestial objects in relation to the horizon. Please explain or direct me to a further vid on this.

  25. How did the Apollo flight computers get men to the moon and back ?   Simple answer?  They did not  !!   Anyone who believes man has been to the moon or space station or space shuttle is just plain "STUPID"

  26. Take that, ignorant hoax-accolytes. But they never want facts to get in the way of their insane fantasies.

  27. bollocks! they never went past low orbit. they cant get past the van allen belts. not with a 10cm thick aluminium hull

  28. Back in the early 1980's I used my parts bin 8088 (1st generation?) PC and a single 360 floppy to surf the internet. It would display the entire front page of the New York Times in less then two seconds. However, the title was ASCI text. Eventually the links went from this [NEW YORK TIMES] [EDITORIALS] to this [LINK]. It was a serious impediment to actual information retrieval for a long time.

    I used a file transfer program called CrossTalk to dial up a Unix internet computer. Both CrossTalk and my Personal
    Word Perfect word processor fit on a single 360 floppy and would load into a full sized 1 megabyte RAM card on start up and everything was fast after that. I used a daisy wheel printer at 13 characters per second which was slower then dot matrix printers but had laser printer resolution of course.

  29. AGS was actually used during missions. IIRC it was used during Apollo 13. IIRC it was also used during gimbal lock on one mission.
    AGC was actually a GPC.

  30. Since that computer was powerfull enough to calculate positions and movements of objects in 3 dimensions in real time it would have been poosible to build a few thosound of them to computer animate the moonlanding instead. I wounder if that also would have costed 40 bilion usd? Thank God that Nixon fellow was an honest President and never would have thought about stealing tax dollars like that.

  31. This is brilliant. It does need to be put in context. As anyone who worked with dos based computers recalls, we used to be able to do a lot more when resources were devoted to the program instead of the interface. My no hard drive 512k ram one 720 floppy Toshiba T1000 did some great productivity software stuff without the burden of running a GUI

  32. What utter rubbish! It really is the case that if you keep repeating fictionalised stories and nonsense people will eventually start believing. No one will doubt whatever set of ridiculous facts you present.

  33. this is a particularly fascinating area of the Apollo program for me. The sheer ingeniousness of how they designed and built the computers to enable craft to travel to and land on the moon. In a way, they had to be smarter than today's system designers and developers, because of the extremely limited computing power available.

  34. Ok, one of my friends just explained this to me in less than a minute..
    Or, as he put it, in "my money.." He basically said, with the computing power they had at their disposal to get to the moon, it would take approximately 3 days to download a tit and around 2 months for a low res, 5 minute jazz flick.. His eloquent descriptive terminology, however crude, has enlightened me to just how bloody lucky they were to get there and back..! Hats off to them, and especially to the ground crew who are often the unsung heroes in these endeavours.

  35. The "Executive" routine prioritized every "task" it was responsible to complete. Usually, it could get through all of the tasks assigned to it…but on Apollo 11, during the final approach phase of the landing…the Rendezvous radar inputs began swamping the AGC's computational time. It turned out there was an electrical phase problem with the two A/D converters tasked with reading azimuth and elevation of the radar. The two CDU's wound up being supplied with power at different phases. This made the information coming into the AGC incorrect. The AGC kept trying to drive the Rendezvous Radar to it's proper setting to acquire the Command Module…but was constantly being fed incorrect feed back info from the Radar. Luckily the Rendezvous Radar information was of a lower priority than solving the landing equations and while the DSKY gave a quite upsetting "Malfunction Code"…the codes soon passed and after Neil Armstrong, took command of a portion of the landing responsibility, the "MC's" ceased occurring…and the landing was successful.

  36. They didn't, it's fake.

    Once you use low tech to go to the moon once it explodes and you cant go back to the moon ever again…

  37. R.A.H. was once talking with some NASA engineers about the lunar orbit of one of the spaceships in either Rocket Ship Galileo, or The Man Who Sold the Moon. The mentioned how accurate it was to the one used by NASA's lunar missions (only off by a few degrees), the Engineers we're then shocked when he told the he used a slide rule to make the calculations because back in 1946-1948 there were only about 2 or three computers, and since he was a civilian didn't have access to them, so he used the old fashioned way to make the calculations.

  38. Hmm, why "iPhone" and not just "mobile phone"? Was it important to the story to use a brand instead of a generic term?
    /end rant

  39. Imagine taking off from the moon.

    Bij hand control. No computer timing.

    And you have to time it to something that is rotating around the moon..

    And you have to connect to it.. fly to wards it. Not ram it.
    So you can fly back to earth.

    Your moonlander is not an airplane. Refuel midair is Nice, but connect your moonlander on something in moon-orbit?!

    Well, you now know the moonlanding is fake.

  40. Sure. They went to another planet and back 50 years ago with a Commodore 64. Landing on another planet is sci-fi today.

  41. No two-minute waste of time getting to the point. Thank you for knowing how to present a video, most don't know how to do it.

  42. The Apollo Abort Guidance System was actually used, by the way. It was tested on Apollo 9, accidentally activated on Apollo 10, used during lunar ascent gimbal lock on Apollo 11, and used for most of the return trip of Apollo 13 (including several engine burns).

  43. Speed vortex lines. Empty space is a uniform speed vortex line. And earth is a 11km speed vortex curvature. What is 11km. Diameter of earth is 10km extra 1km. So anything less than 10000 km/sec gets trapped in suns gravity space and reaches sun.

  44. I don't trust my Mobile to (potentially) enter at home. Even less to drive my car. I will be crazy if I trusted my mobile to go to the moon.
    Mobiles are good for Apps and writing comments in YouTube.
    Hackers are everywhere

  45. A Commodore 64 was complete trash back in the 80s. That’ s many years later after the moon landing. I just can’t believe it, sorry

  46. First, try putting punch-cards, punch-card readers and magnetic storage tapes into context in 1969. The mind boggles what computers the Apollo craft must have had on board unless of course the craft were remotely controlled in real time by 40 ton mainframe calculators in Houston. Imagine real time, no delay, full duplex wireless communication with Richard Nixon in the White House from 250,000 mls away. And then dream of microprocessors and the stone age, command line, DOS-like, operating systems that were in an embryonic stage in the 70s and 80s. Mind you, they did have batch files. lol

  47. Ok curious droid, explain in detail how they managed to broadcast live TV from the moon back to earth, with the power they had available. Go on then.

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