None (Concept)

In programming, "None" is a special value that represents the absence of a value or no data. Think of it like a placeholder indicating that something is intentionally empty or undefined, rather than missing by mistake. It is used to signify "nothing here" or "nothing assigned," helping programmers distinguish situations where a variable has not been given a meaningful value yet. "None" is unique to certain programming languages like Python and helps manage data flow and logic more clearly by explicitly marking the absence of data.