There is a long history in electrical engineering of referring to such power plugs — that is to say, plugs with holes instead of prongs — as female, particularly regarding coaxial transmission of electricity, and data communication and computer cables. Type N connectors, and all IEC 60320 "appliance coupler" plugs, and VGA cables with male connectors on the cable and female connectors on the devices are examples of this. That said, while IEC 60320 provides gender-based standards for higher-voltage plugs (such as the cable plugged into a standard computer power supply), they have not yet defined gender-based standards for low-voltage coaxial power connectors such as those discussed herein; i.e., which component is "male" and which is "female". As a result, there are varying opinions in this regard. Many industrial suppliers avoid gender terminology but many do not. Similarly, some people view the corded plug as female and some perceive it as male. Some, after consideration and surveys, found that user perception of which was male and which female was evenly split.