A connector is an electro mechanical device to join electrical ends and make an electrical circuit. Electrical connectors consist of plugs (male end) and jacks (female end). The connection may be temporary, as for portable equipment, require connect other elements or to increase length of cable etc. or serve as a long lasting electrical joint between two or more wires and devices.
A male connector connects wire, cable, or piece of hardware, having one or more exposed or unshielded electrical terminals and are constructed in a way that it can be inserted into a receptacle or female connector to ensure a reliable electrical and physical connection, also known as a plug. Most Common example is plugs for headsets.
A female connector connects a cables or hardware components having one or more recessed holes with terminals inside and constructed in a way that a plug with uncovered conductors (male connector) can be inserted into it to make a physical and electrical connection. Example include telephone jacks and the jacks for headset etc.
A gender changer is an adapter that converts a male connector to a female connector of the same type, or a female connector to a male connector of the same type.
A genderless connector have mating surfaces have both male and female connector aspects simultaneously, involving corresponding paired same parts each having protrusions and indentations. Mating surfaces are mounted into identical fittings which can freely mate with any other, without regard for gender provided that the type and size are already matched with each other.