Final answer:
In a computer system, the organization of related data is referred to as a File, which stores various types of data and is managed within directories or folders.
Step-by-step explanation:
In a computer system, the organization of related data is called a File. A file is a collection of data or information that is stored on a computer and can be accessed and manipulated using software. Files can contain different types of data such as text, images, audio, and video. In a hierarchical data storage system, files are organized into directories (also known as folders) to make it easier to find and manage them. For example, a Word document in which you write a report is considered a file.