Programming notation refers to the symbols and conventions used to write code in programming languages. It includes syntax rules, keywords, and structures that define how instructions are formulated. Different programming languages, such as Python, Java, and C++, have their own unique notations, which help programmers communicate with computers effectively. These notations serve as a bridge between human logic and machine understanding. By following specific programming notations, developers can create algorithms, control data flow, and implement functions. Understanding these notations is essential for anyone looking to write or read code in the world of software development.