Which term describes a memory element that is stable in either of two states?

The term that describes a memory element that is stable in either of two states is bi-stable memory. Bi-stable memory refers to a type of memory circuit or element that can exist in one of two distinct states, making it ideal for representing binary information (0 or 1). This stability in either state allows bi-stable memory elements, such as flip-flops, to reliably store data until it is needed, making them foundational components in digital electronics, computing, and various applications requiring non-volatile storage.

In contrast, the other terms represent different concepts: static memory refers to a type of memory that retains its data as long as power is supplied, but it doesn't specifically highlight the aspect of being stable in two states. Toggle memory is not a standard term used to describe memory components and lacks a clear definition in the context of electronic memory elements. Dynamic memory describes a type of memory that requires periodic refreshing to maintain its data, which does not align with the stability characteristic of bi-stable memory. Thus, the definition and functionality of bi-stable memory clearly make it the correct choice.