| 摘要 |
Methods, devices, and systems for monitoring the status of a computer through a driverless device node port, such as a universal serial bus port or P/S 2 port, are disclosed. A driverless device node is emulated and presents a message to the operating system of the computer through the device node port. The message requires a response from the operating system, and the time taken for the response to be generated is detected. From the detected time, the status of the computer can be found. A status indication may be transmitted from a remote management device emulating the driverless device node to a remote management computer so that the condition of the computer can be monitored remotely.
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