The automotive aftermarket has largely settled that; even without the original design files, it's perfectly legal to make compatible parts, patents and the like notwithstanding. You can build an entire "small block Chevy" engine wholly from parts that GM did not make, and it will fit perfectly in a car that originally had the "genuine" one.

IANAL but as long as you don't violate any patents they have (if any) nor use their trademark, feel free to make and sell keyboards that look like theirs (not that a keyboard of their design is particularly distinctive anyway.)

That's due to interference suppression capacitor in the PSU. The safety standard puts the "touch current" limit at something like 300uA (0.3mA), which is definitely in "painful but not dangerous" territory. You do need to exercise caution when plugging in other devices that are also connected to the mains, since that amount of current and voltage can certainly damage sensitive electronics.

Old but good page on such measurements: http://www.aplomb.nl/SMPS_leakage/Doc_ie.html

[1] In the late 80s and early 90s, the battle between those writing handwritten Asm and those using compiled HLLs has many similarities to AI-generated vs non-AI code today.

That is precisely what a static analyser can determine. E.g. if you are reading a 4-byte length from a file, and using that to allocate memory which involves adding that length to some other constant, it will assume (unless told otherwise) that the length can be all 4G values and complain about the range of values which will overflow.

Of course: https://www.pouet.net/prodlist.php?platform%5B%5D=Atari+VCS&...

And it depends on DOS configuring the memory space to leave an INT 20h call (to terminate the program) at a place that's easy to RET to.

This has always been the case, and actually inherited from CP/M.

...making it even more clear what "secure" boot actually secures: the control others have over your own computer.