Assertion: operating system's user interface | /r/CapableOf | request service
Facets:
value: from the operating system
type: OTHER
Source sentences:
text: The user interface views the directory structure and requests services from the operating system that will acquire data from input hardware devices, such as a keyboard, mouse or credit card reader, and requests operating system services to display prompts, status messages and such on output hardware devices, such as a video monitor or printer.