A Microsoft Windows 98 CD which is now from 4 to 6 years old will not have DRIVERS for much hardware today. I hope you understand what this means.

As to the USB MOUSE and KEYBOARD, some but not all BIOS have an option to support USB keyboard/mouse in a legacy mode. I'd had to set this in either mode so its apparent there is no standard here, but it's a setting you need to tweak.

Bob