I understand how a processor works and RAM and all that stuff. I understand you can use assembly and other languages to make the processor do things. But I assume that you have a to do something to the processor so it can understand your inputs? And if you have to put a base layer on the processor, how does the machine that did it get it’s layer?
It’s like watching one of those videos where they make this big dump truck. But they needed to build a mold to make the dump truck part. But how did they build a mold to make that mold that made that mold?
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The earliest processors allowed individual memory locations to be manipulated directly, the most basic form of loading code. There was no ‘base layer’ (BIOS, OS, etc)
Even modern microcontrollers are often used without any pre-installed firmware layers (ignoring microcode, which is pre-installed or hard-coded).
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