What is a collection of data stored in a computer system called?

A collection of data stored in a computer system is referred to as a database. This term encompasses structured collections of data that can be easily accessed, managed, and updated. Databases are designed to handle large amounts of information while allowing for efficient querying and manipulation of that data. They typically use a database management system (DBMS) to organize and facilitate data storage, retrieval, and management.

In contrast, a network refers to a system of interconnected computers and devices that communicate with one another. A spreadsheet is a specific type of software application designed for organizing, analyzing, and storing data in tabular form, but it does not represent a comprehensive collection of data in the same way a database does. Software, more broadly, encompasses programs and applications that perform tasks on a computer but does not specifically denote a collection of data itself.

Thus, when discussing the term that most accurately denotes a collection of stored data, "database" is the correct choice, as it directly relates to the structured organization and handling of data within a computing context.