Final answer:
A collection of related data fields pertaining to a particular entity or event is known as a database.
Step-by-step explanation:
A collection of related data fields pertaining to a particular entity or event is known as a database. A database is a structured collection of information that is organized and stored in a way that allows for efficient retrieval and manipulation. It is commonly used in various fields, such as business, medicine, and engineering, to store and manage large amounts of data.