device driver
type: Concept
broader: input-output program
preferred label: افزار‌ران @fa

input-output program
type: Concept
alternative label: I/O program
broader: operating system (computer)
narrower: device driver
preferred label: برنامه درونداد-برونداد @fa

operating system (computer)
type: Concept
narrower: input-output program
preferred label: سامانه عامل (رایانه) @fa