Hello, IT. Have you tried turning it off and on again?

  • CileTheSane@lemmy.ca
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    9 hours ago

    Turning it off and on again is a universal truth. A defibrillator works by turning the heart off then on again.

    (You don’t defib a patient who is flat lining. You defib to fix an erratic heart beat.)

  • L0rdMathias
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    17 hours ago

    In theory. In reality it’s not on or off it’s always on and it’s high vs low voltage.

    • GoodEye8@lemm.ee
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      10 hours ago

      Maybe I’m misremembering (or it’s just old knowledge and new chips are more sophisticated) but despite it being low voltage vs high voltage the outcome is still on or off because there’s a resistor in the semiconductor that either allows current through or not. If it were a light switch it would be the equivalent of turning the light on or off.

      • slackassassin
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        8 hours ago

        Ya. It’s more like “current go this way or current go that way” than it is high/low voltages.

    • vinnymac@lemmy.world
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      17 hours ago

      And yet I still have electronics to this day that require me to pull the plug to get going again 😂

      • earphone843
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        16 hours ago

        That’s actually why. You have to drain the power from the circuits.

      • oleorun@real.lemmy.fan
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        16 hours ago

        Our LG washing machine does this once every year and a half almost like clockwork. It will simply refuse to do anything until it is unplugged and then plugged back in.

        • dual_sport_dork 🐧🗡️@lemmy.world
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          16 hours ago

          It may be clockwork. If its power hasn’t been interrupted in the interim, i.e. you have very stable power at your house, that’s got to be some kind of overflow bug in its software. A timer somewhere is running out of room to count clock ticks and it barfs.

        • serenissi@lemmy.world
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          15 hours ago

          I’ve an oven which when turned off in hot state while in convection mode will turn on the fans for few minutes next time I turn it on, regardless of mode and temperature. To overcome this bug I need to put mains power off for couple of minutes and let the caps keeping the ram alive drain. Not only it has hot state reset bug but also a ram initialization issue as well it seems. Thankfully that state is not stored in nvram.

          The manufacturer was as expected: ‘we’re not software guy, we can send an ‘expert’ engineer (who knows only to replace parts, no debugging) and it’ll cost $$’. I thought I’ll reverse it and fixing someday, till then I’ll live with it.

  • Caveman@lemmy.world
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    15 hours ago

    Studied computer science. The answer is yes.

    A computer is a funky thingy that’s a jumbled city of stuff turning on and off with the one master on/off thingy which is the clock on the processor.

    When it switches from negative to positive a lot of small switches everywhere switch, some stay the same, some flip. It’s all just a bunch of rythm dancing of switches going off and on.

    • TranquilTurbulence@lemmy.zip
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      3 hours ago

      If you used mechanical switches, would it be possible to build a large version of some modern semiconductor chip? If so, I would expect that contraption to be slower and louder than the original.

    • Senseless@feddit.org
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      11 hours ago

      Until some stray gamma ray hits just the right spot, flips a bit and either nothing at all of everything all at once happens.

    • lordnikon@lemmy.world
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      10 hours ago

      I come from the net. Through systems, peoples and cities to this place: Mainframe. My format: Guardian; to mend and defend. To defend my new-found friends, their hopes and dreams. To defend them from their enemies. They say the user lives outside the net and inputs games for pleasure. No one knows for sure, but I intend to find out.

    • CileTheSane@lemmy.ca
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      9 hours ago

      It’s all just a bunch of rythm dancing of switches going off and on.

      I want this rhythm game now.

  • raspberriesareyummy@lemmy.world
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    16 hours ago

    “Since words can be represented in binary, thus as a sequence of ones and zeroes, […], doesn’t that mean that all questions can be answered by saying no, then yes again at some level?”

    How has no one pointed out yet that this is conceptually wrong? Turning something off & on again is cycling the same switch. Solutions to IT problems are setting different bits, which is binary for “using different words”.

    • Get_Off_My_WLAN@fedia.ioOP
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      16 hours ago

      How dare you use logic on my computer logic-related shower thought.

      But yeah, I get what you mean. I had that thought at some point after posting. This is why I should probably just keep it in this silly thread and not write any philosophy essays soon.

    • Zorque@lemmy.world
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      14 hours ago

      I mean, technically speaking, it’s cycling all the switches. You use one main switch to simplify the process, but it controls all the other switches as well.

      • raspberriesareyummy@lemmy.world
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        13 hours ago

        No, that’s the whole misconception here. cycling a switch means returning to the previous state. Turning it off and on again means going from ON -> OFF -> ON. Software problems are solved by going from one state to a different state.

    • zaphod@sopuli.xyz
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      17 hours ago

      Digital means that it’s discrete compared to analog which is continuous. Some of the first digital computers were decimal, but in general binary is simpler to use so that’s why it’s everywhere.

    • Get_Off_My_WLAN@fedia.ioOP
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      16 hours ago

      I wasn’t expecting to see a reference to one of my favorite anime of all time. Thank you for reminding me why it’s peak.

  • bluGill@fedia.io
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    17 hours ago

    Turning the right thing off and on again is the key. When you only have one router and a handful of other things like most have at home this isn’t a big deal. When you have millions of things it can take weeks just to find the right thing in the mess.

    • Midnight Wolf@lemmy.world
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      14 hours ago

      the right thing

      Hospital IT: yes I hear you are having trouble with your TV not working, let me just grabs ventilator plug

      Patient: flailing

      IT: relax, I know what I’m doing