Youve just moved a new USB 20 device from a new system to an

You’ve just moved a new USB 2.0 device from a new system to an older system. The new device worked properly on the new system but doesn’t install properly on the older system. All other USB devices work properly on the older system. What is the most likely problem?

A. The USB device has malfunctioned.

B. The new USB device isn’t backward compatible with USB 1.0 standards.

C. The old system’s BIOS is out-of-date and needs to be upgraded.

D. The USB hub has malfunctioned.

Solution

C. The old system’s BIOS is out-of-date and needs to be upgraded.

This is because the legacy support that is resent in the BIOS applies only to those systems which do not natively support USB. If this setting has been enabled then the attempt made by the BIOS to provide a layer that is compatibility for all sorts of operating systems, so that storage devices attached to these ports can be used . An operating system which supports an USB should not at all be affected by these settings because they can communicate with the USB hub controllers directly without relying on the BIOS.