Things that are electronic and/or have very intricate and complicated moving parts are generally considered technology. Things that are man- or animal-powered usually aren't.
Most technology encountered by the PPC will fit into one of this category's sub-categories and should be placed accordingly. Things that don't quite fit anywhere, or are so general that they fit everywhere, can be placed here.
This category has the following 4 subcategories, out of 4 total.