On-board
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On board usually means to be traveling on some vehicle. For example, Baby On Board. Compare with overboard.
Metaphorically, the term on-board is often used to refer to some piece of technology that is integrated in a moving vehicle, for example:
In computing, the term on board often refers to controllers or other devices that are integrated onto a motherboard, used in the metaphoric sense, as well as referring to them being physically on the circuit board.