Abstract: A user specifies, in advance, the expansion devices which he/she does not want to remove among the expansion devices which are attachable/detachable with respect to the PC, and the specified expansion devices are excluded from a list displayed later for the user to select an expansion device to remove. Besides, whether to display expansion devices in the list is specified to an BIOS and the information referenced by the BIOS is stored in an NVRAM.
Abstract: A saddle tree whereby various parameters, such as the fork, cantle, seat length and various angles there between are readjustable to accommodate different animals (e.g., horses) as well as the same animal as its physical dimensions change. The saddle tree is rigid thereby alleviating certain discomforts for the animal and rider.