Which of the following is considered a system application?

A system application is defined as software that performs tasks that are vital to the operation and management of the system itself. An operating system updater is responsible for managing and facilitating the installation and management of updates to the operating system, which is a key function for maintaining system security, performance, and compatibility with hardware and software. This application directly interacts with the operating system core to ensure it is up-to-date with the latest features and security patches, differentiating it from user applications which are generally designed for specific tasks like editing text, browsing the web, or manipulating images.

In contrast, a text editor, web browser, and photo editing tool are categorized as user applications, as they serve primarily to assist the end-user in performing specific tasks instead of managing or maintaining the operating system itself.