Which operating system component schedules when each application runs?

Drivers are specialized software components that allow the operating system to communicate with hardware devices. While they facilitate interaction between the OS and peripherals, they do not manage the scheduling of applications. Instead, drivers function to translate requests from the OS into commands that hardware can understand, focusing on input/output operations rather than process scheduling.

The user interface (UI) is the component through which users interact with the operating system. It includes elements such as windows, menus, and icons that allow users to launch applications and manage tasks. However, the UI does not handle the scheduling of applications; that responsibility lies with the kernel, which operates behind the scenes.

The file manager is responsible for managing files and directories within the operating system, allowing users to create, delete, and organize files. While it plays a crucial role in data management, it does not schedule when applications run. Instead, it focuses on file operations rather than process execution timing.