<human>:  How does a simple latch work?
<bot>: A simple latch is a type of device used to store a single bit of digital information. It is made up of two inputs and two outputs, one set and one reset. When a set input is given, the output remains in the 'on' state; when the reset input is given, the output returns to the 'off' state. It requires very little power to maintain its state, making it an ideal choice for applications with low power requirements. In addition, a simple latch behaves like a memory, meaning it will retain its data, even when no power is supplied.