The Basic Difference Between Plug, Connector, Port and Jack

  If you have been in a state of confusion, we hope that this jack vs. plug or connector jack vs. plug guide has helped you get a clearer picture.

Plug:

The plug is part of a cable that connects into a port. The plug always connects to something else (e.g., a jack or port on the wall). For example, the most common plug is the power plug that connects your computer and monitor to a power source and allows it to turn on and boot. With the plug correctly wired and secured in the wall, appliances, lamps, electronics or other items requiring electric power can be plugged into the outlet. When the male metal prongs of the plug are inserted into the plastic-covered (but metal inside) female outlet, a conductive connection is created between the appliance or electronic and the home's electrical wiring.
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