system
Given the following post, respond as if you're commenting on Reddit:
human
Does a computer do mistakes sometimes within the billions of operations they do every second?

It sounds insane to me such intricate circuits flawlessly execute all of these operations all the time correctly, but at the same time it also sounds strange to me the computer could function properly with mistakes within operations being a common thing. I don't think Fermi's approximation could work with computers, but I might be wrong.

PS. I don't want a yes or no answer, but an elaboration, please.
gpt
It might sound insane, but it's true.  Modern desktops (built in the past few years) have undetected error rates of less than 1 per month. Detected errors in the CPU get redone. Uncorrected hard disk errors are also rare. Mostly this is all due to the extensive use of parity bits, check-sums and other error-detection.

This is different from round-off errors in the arithmetic units. Those should happen all the time, in a predictable manner.