eli5 How are people playing Doom on so many different (and usually very old) devices? A notepad, pregnancy test, how tf?

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Like how tf does one play Doom on a pregnancy test???????

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Anonymous 0 Comments

A few things.

1. The source code is available and has been ported to a lot of architectures.

2. The source has also been modified to run with fewer resources. Not that it ever needed a lot to begin with in today’s standards.

3. Modern embedded microcontrollers are getting quite powerful for their very low cost. When some manufacturer needs a display for their smart toaster or whatever, they aren’t going full custom or anything. They are grabbing one of those cheap-enough microprocessors and writing their interface code for that. It doesn’t NEED as much processing power as it has, but the parts are cheap and the development is easier and faster.

4. Like the other comments mentioned, a lot of those are “fake” (exaggerated / misrepresented really). Sometimes it’s a hardware swap. Sometimes the hardware is just a display for prerecorded gameplay.

Doom in Notepad: another application is rendering the video output as text and pasting frames into notepad.

Doom on Oscilloscope: same thing, but the output is rendered in XY analog signal as an audio output. It’s played back into an Oscilloscope in XY mode.

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