What is the difference between a circuit board and a bread board

A bread board is prototyped (manufactured) in a way where it is less permanent than a pcb (printed circuit board) or an even more permanent pcba (printed circuit board assembly). Bread boards are typically the first step to creating a finished circuit because electronic components are easier to test and take apart when needed; design and investigation can be made effectively as no soldering connections are required. Whereas a circuit board is used for the further finished products because they don't have sockets like the bread board and so there is little room for error and mistakes.