Relay Computer 2020 Review: Demonstration

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  • Опубликовано: 4 дек 2024

Комментарии • 46

  • @BiggRanger
    @BiggRanger 4 года назад +36

    The content and quality of these videos is amazing. They should be used to teach CS in schools.

  • @johnwilson3918
    @johnwilson3918 4 года назад +10

    Brilliant! Thanks for showing this. Imagine if you could travel back in time to the 19C and show this off to Charles Babbage. He'd be mighty pissed!

  • @werdna1969
    @werdna1969 3 года назад +5

    This is exactly how I imagined the future would look like!

  • @jbrownson
    @jbrownson 4 года назад +19

    Very impressive work, thanks for sharing it. I love being able to hear the sound of a computer doing its work.

  • @edgeeffect
    @edgeeffect 2 года назад +6

    It's nice how you've done that multi-screen edit, so that we can see everything at once without you having to wobble around with a handheld camera or anything seasick like that. :)

    • @paul80nd
      @paul80nd  2 года назад +2

      Thanks :) - although if I'd built my computer 'landscape' rather than 'portrait' of course I wouldn't need to do the multi-screen in the first place ;)

  • @projectartichoke
    @projectartichoke 2 года назад +2

    A very outstanding computer, obviously a labor of love, and the best looking relay computer ever made in my humble opinion.

  • @telegraph_hill
    @telegraph_hill 3 года назад +2

    I love the quasi musical beat at 8:00. Well done!

  • @evmemc
    @evmemc 8 месяцев назад

    Thats very cool, I absolutely love everything about your design and setup here, awesome job!

  • @Culturedropout
    @Culturedropout 3 года назад +2

    Amazing! I just had a flashback to Bletchley Park. That's awesome!

  • @brettany_renee_blatchley
    @brettany_renee_blatchley 8 месяцев назад +1

    Sounds like a syncopated calculating tap-dancer! 😊 Wonderful device!!

  • @CasualSnake_D2
    @CasualSnake_D2 2 года назад +1

    Oh this is delightful! Well done!

  • @mirskym
    @mirskym 3 года назад +2

    Bravo! It's clear that you put a lot of work into it!

  • @OzzMazz
    @OzzMazz 2 года назад +1

    Sounds like an old fashioned telephone exchange. :) Great work.

    • @paul80nd
      @paul80nd  2 года назад

      I love the sound ... and the flashing lights ... but mainly the sound ;)

  • @Homebrew_CPU
    @Homebrew_CPU 3 года назад +2

    Nicely done!

  • @borissinaga
    @borissinaga 4 года назад +4

    Blinken liiiiighhtttssss.
    But seriously, impressive work.

  • @hattree
    @hattree 3 года назад +1

    I love the lights, it's like the WOPR from WarGames.

    • @paul80nd
      @paul80nd  2 года назад +1

      That's absolutely the look I was going for :)

  • @briandenley
    @briandenley 2 года назад

    Amazing work and presentation. Available as a kit someday? Hehe just hoping!

    • @paul80nd
      @paul80nd  2 года назад

      Thanks. Heh, yea, that would be quite a task making this in to a kit ... that said though, there's links to the PCB designs for the newer cards at www.relaycomputer.co.uk/pages/progress/ and I think I'll upload the Gerber files too so you could get any of the PCBs manufactured if you really wanted to make a bit of the computer.

  • @mezzofresh3521
    @mezzofresh3521 10 месяцев назад

    That's really cool man

  • @TexasRailfan2008
    @TexasRailfan2008 3 года назад +3

    That amp gauge is about the only part of this that I understand.

  • @canadianman000
    @canadianman000 4 года назад +1

    I don't think you should use a bell when this halts. Instead it should definitely have a mechanical buzzer.

  • @prpplague
    @prpplague 4 года назад

    awesome work and eemo!

  • @HikaruAkitsuki
    @HikaruAkitsuki 10 месяцев назад

    So this is what they meant when you said to code the computer in binary, it is actually a hard switch coding.

  • @maverickstclare3756
    @maverickstclare3756 3 года назад +2

    I hear Todd Howard is planning a SkyRim port

  • @TheCubeFactor
    @TheCubeFactor 9 месяцев назад

    where do you get the switches?

  • @canadianman000
    @canadianman000 4 года назад +2

    Why the dip switches for speed instead of a variable control?

    • @paul80nd
      @paul80nd  4 года назад +10

      At the moment it's running off a temporary clock board which uses a 32.768kHz crystal run through a series of 16 divide-by-2 gates (taking the clock down to 0.5Hz at the last gate). I tap off the result at the last 8 gates (0.5, 1, 2, 4, 8, 16, 32 and 64Hz) and put that through an 8-to-1 selector which takes a 3-bit input to select one of the 8 lines - that's what the DIP switch is controlling.
      Previously I was using a 555 timer set up that had variable control but I wanted something that had some discrete fixed clock speeds. When I design the proper clock card I might implement both as well as having a more 'authentic' relay ring counter (which will be a fixed clock speed).

  • @gauravponnappa8257
    @gauravponnappa8257 5 месяцев назад

    I want one

  • @gabrielafranco730
    @gabrielafranco730 3 года назад

    What are the small squares and text with lights behind them called? Could use them for a project of mine... Great work 💪

    • @paul80nd
      @paul80nd  3 года назад +1

      They're these: www.nkkswitches.com/products/illuminated-tactile/jb-series-low-profile-illuminated-tactile-switches

    • @gabrielafranco730
      @gabrielafranco730 3 года назад +1

      Perfect thank you!

  • @PaulasTechStuff
    @PaulasTechStuff 4 года назад

    Beautiful

  • @wizrom3046
    @wizrom3046 3 месяца назад

    My new computer runs at over 4 Hertz! 😎
    "You mean 4 GIGA Hertz... right?"
    ... "right?? ??" 😯

  • @DJ_Level_3
    @DJ_Level_3 2 года назад

    What kind of switches are those? I want to get some for a project I'm doing.

    • @paul80nd
      @paul80nd  2 года назад +1

      Do you mean the main 'paddle' switches? ... if so they're these ones: www.nkkswitches.com.hk/products/Rockers/M/M2018TYW01 with the 'H' caps.

    • @paul80nd
      @paul80nd  2 года назад +1

      there's a bit more on them in my blog post here www.relaycomputer.co.uk/posts/2014/07/user-interface-data-switches/

  • @artemonstrick
    @artemonstrick 3 года назад

    what is the highest clock frequency?

    • @paul80nd
      @paul80nd  3 года назад +2

      The current (temporary) clock is based on a 32.768KHz crystal divided down and at 32Hz the computer works fine but at 64Hz the relays start locking up. The maximum will be somewhere between those two values (if I had a variable clock) but 32Hz is quick enough.

  • @jaimdiojtar
    @jaimdiojtar 5 дней назад

    i wanna see it doing 20 decimals of pi

  • @IsawU
    @IsawU 4 года назад +5

    This is so beautifully useless. Nice work

    • @kraio-sfu
      @kraio-sfu 4 года назад +6

      Oh I’m sure he knew going into this that it would be supremely slow. But clickety clackety/flishity flashity!