Don't forget ternary content addressable memory (TCAM), which is common in contemporary network routers because it turns out having a third state to mean "don't

Don't forget ternary content addressable memory (TCAM), which is common in contemporary network routers because it turns out having a third state to mean "don't care" is incredibly useful: https://en.wikipedia.org/wiki/Content-addressable_memory#Ternary_CAMs https://en.wikipedia.org/wiki/Content-addressable_memory#Ter...