Computer Science I'm working on project about building an operating system simulator and in the description of the project under the section about I/O management, the requirement is two typed of I/O...

Computer Science I'm working on project about building an operating system simulator and in the description of the project under the section about I/O management, the requirement is two typed of I/O event must be handled. One come from a process and the other one come from external (e.g hardware peripherals) which may happen at moment and caused by process being executed by CPU. So I dont really know what to do here? is it asking to implement some kind of disk scheduling algorithms? im doing the project in python btw