Coming from the hardware world, wait until you learn about e-fusing chips to lower tier products! I've worked at a place where there was exactly one chip and ~

Coming from the hardware world, wait until you learn about e-fusing chips to lower tier products! I've worked at a place where there was exactly one chip and ~8 ways to disable different things to make the whole product family, with nearly 2x difference in cost between low and high. This is usually done by disabling bad sections of the chip, but if yields are too high, you just disable functioning bits of good chips. Our yields were great. :-|