Null often pops up in legal and scientific contexts; it was originally used in Scottish law and still carries the meaning "having no legal or binding force," especially in the phrase "null and void."

Null character, the zero-valued ASCII character, also designated by NUL, often used as a terminator, separator or filler. This symbol has no visual representation.

Jul 11, 2025 · In computer science, a null value represents a reference that points, generally intentionally, to a nonexistent or invalid object or address. The meaning of a null reference varies …

What is the etymology of the noun null? null is a borrowing from Latin. Etymons: Latin nūllus.

Sep 7, 2025 · The concept of null and its significance in computing with our comprehensive definition, examples, and explanations. Learn how null differs from zero and empty.

Jun 12, 2018 · null is a fundamental concept in many programming languages. It is ubiquitous in all kinds of source code written in these languages. So it is essential to fully grasp the idea of null . We …

Null definition: Having no legal force; invalid.

Mar 16, 2025 · Null indicates a state where nothing exists or no valid value is assigned. In programming, it is used to denote that a variable or a pointer does not reference any valid data.

Nulls are naturally found in binary numbers when a byte contains all zeros, and they are used to pad fields (see padding). A null may function as a delimiter; for example, in C/C++, a null...

Sep 26, 2022 · In the context of programming languages, a variable that has no value assigned is considered null. It may have been created without a value with the intention of adding one to it later, …