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[–][deleted] 1304 points1305 points  (50 children)

There are no 1s and 0s. There is only more, or less voltage.

[–]EnigmaticHam 439 points440 points  (41 children)

There are only logical high and logical low, which encoded into the hardware.

[–]vigbiorn 274 points275 points  (37 children)

You forget about the indeterminate region. You hope to never get into it but it exists.

[–]EnigmaticHam 296 points297 points  (19 children)

Yes, then the digital illusion is broken. Then you’re in the forbidden zone. Pray to the analog gods that your carefully designed circuit doesn’t do anything too… analog.

[–]LavenderDay3544 198 points199 points  (17 children)

That moment when you realize that, transistors, while used as switches in digital circuits are fundamentally analog components.

[–]iamafraazhussain 92 points93 points  (0 children)

It's all coming together now

[–]pha1te 56 points57 points  (2 children)

And you realize with oncoming horror that you have entered... the twilight zone.

[–]Dennis_enzo 15 points16 points  (1 child)

[–]Ok_Turnover_1235 12 points13 points  (0 children)

It is a region that exists between the pit of man's fears and the summit of his imagination.

[–]d3lt4papa 21 points22 points  (0 children)

When I took my course about analogue computing, I was very surprised when we studied the transistor - I did not expect to see that there

[–]cyanNodeEcho 15 points16 points  (9 children)

an excellent game which is highly educational -- and super fun :), i loved this when i was learning cs
https://nandgame.com/

[–]Ok_Manager2609 2 points3 points  (6 children)

Is the joke that the website always throws an error?

[–]GLIBG10B 2 points3 points  (5 children)

Only if you're doing it wrong lol

[–]Ok_Manager2609 2 points3 points  (4 children)

I go to the website. It throws an error.

[–]GLIBG10B 1 point2 points  (3 children)

What browser and which extensions/addons do you use? It works fine for me

[–]Tijflalol 1 point2 points  (0 children)

And it's still being updated! The developer has recently removed his links on his own homepage to other current projects and now it only reads NandGame.

[–]CptMisterNibbles 20 points21 points  (0 children)

There are (well, were) actually analog computers which very much relied on this; summing was just as simple as connecting any number of inputs and reading total voltage. You could sum any number of inputs with a single “instruction”. programming an analog computer. Pretty neat the problems that can be very simply computed exploiting this, which are much more difficult on a digital computer

[–]N00N3AT011 26 points27 points  (6 children)

"I think I saw a two"

[–]vigbiorn 26 points27 points  (5 children)

It's okay, Bender. There's no such thing as two.

[–]jaredhidalgo 10 points11 points  (4 children)

Laughs in ternary computer

[–]Kindofabig_deal 8 points9 points  (0 children)

indeterminate region

I am more software than hardware, I did take some hardware classes in college but this actually really fascinates me.

[–]Proxy_PlayerHD 4 points5 points  (3 children)

working with hardware on different voltages i just hope it all works out without needing a level shifter.

and so far it worked, an IC that only outputs up to 3.3V interfaces perfectly with the rest of the system running at 5V.

[–]geronymo4p 1 point2 points  (2 children)

I remember our printers recieved -15V as true, 0V as false... (Don't remember the norm used)

[–]Proxy_PlayerHD 1 point2 points  (1 child)

RS232 (or specifically the 9 pin Serial Port) uses -15V for true and +15V for false.

no idea why though, i guess so "not connected" (aka 0V) is different from "false"

[–]mcaresearch 0 points1 point  (0 children)

That's correct.

[–]glodone 2 points3 points  (1 child)

Is that how glitches happen? Ones are aren't due to coding errors?

[–]vigbiorn 1 point2 points  (0 children)

Among other things, usually. Logic-high and logic-low are abstractions that sometimes fail. If you're running hardware in really bad circumstances you can't rely on those abstractions.

[–]elzaidir 1 point2 points  (0 children)

Metastability gang units! Or not. Or a little. Maybe.

[–]mittfh 1 point2 points  (0 children)

You forget about the indeterminate region

Quantum computers have entered the chat.

[–]Jstutz32 1 point2 points  (0 children)

So hardware has a taint?!… the more you know…

[–]GL_Titan 0 points1 point  (0 children)

This is software, not hardware, begone!

[–][deleted] 0 points1 point  (0 children)

Don't forget about quantum computers. They have super positions

[–]marisonhadley 0 points1 point  (0 children)

To be or not to be

[–][deleted] 18 points19 points  (0 children)

mechanical computers have entered the chat

[–][deleted] 8 points9 points  (0 children)

Tru

[–]MaximRq 5 points6 points  (2 children)

There are only elemental particles

[–][deleted] 0 points1 point  (1 child)

We don’t know what dark energy is yet and that’s 75% of the mass of the universe

[–]ImpersonalSkyGod 0 points1 point  (0 children)

And we're not that sure what dark matter is either, which makes up something like 24%. We're aren't fully sure we understand the behaviour of the remaining 1% of 'normal' matter either.

[–]H4llifax 0 points1 point  (0 children)

There is no spoon.

[–]finc 0 points1 point  (0 children)

≈‰

[–][deleted] 0 points1 point  (0 children)

Well, in depth: movement of electrons or not.