Which device would require a driver to function within the operating system?

A monitor requires a driver to function properly within an operating system because it needs to communicate effectively with the system's hardware. The driver acts as a translator between the operating system and the hardware, allowing the OS to send graphical information to the monitor and ensuring that the display settings are optimized for the specific model of the monitor being used. This includes managing resolutions, refresh rates, and color settings, which are essential for proper visual output.

In contrast, an SSD (solid-state drive) typically comes with built-in support within most modern operating systems, requiring less direct driver intervention compared to peripherals like monitors. A web browser is a software application that does not rely on hardware drivers to function but instead operates within the framework provided by the operating system. The operating system itself, being the core software that manages hardware and software resources, does not require a driver since it is the fundamental layer that interfaces with all other components.