An iron compound catalyst for inhibiting the generation of dioxin of the present invention, comprise iron oxide particles, iron oxide hydroxide particles or mixed particles thereof having a catalytic activity capable of converting not less than 15% of carbon monoxide into carbon dioxide when 2. A campaign set is provided in the primary storage unit, wherein at least part is stored in the primary storage unit prior to its being received by the user, either as part of or by addition to the personal computerized system. This interface object is able to return events generated by second OCX to first OCX, and first OCX is able to completely control the operation of second OCX.