I/O
I/O (an acronym for “Input/Output”) is located in the Hardware Resources category in System Information. I/O is the communication channel among hardware devices in your computer. The Resource column in the details pane displays the resource that is used by an I/O device, which appears in the Device column. The Status column displays the status of the device.
If there is a sharing conflict with a device that uses an I/O channel, locate the device in Conflicts/Sharing or in I/O, and then use Device Manager to locate and troubleshoot the problem.