Prototype Boards UnperforatedPrototype boards, also known as breadboards, are flat, plastic boards with a grid of holes that are used for building and testing electronic circuits. Unperforated prototype boards are boards that do not have any pre-drilled holes, allowing the user to drill their own holes wherever they are needed. This can be useful for creating custom circuits or for testing a circuit design before committing to a permanent layout. Prototype boards are typically used in the prototyping phase of a project, when the design of the circuit is still being refined. They are a convenient and easy way to quickly build and test a circuit without having to solder components together. Once the design is finalized, the circuit can be transferred to a more permanent board, such as a printed circuit board (PCB), for final assembly and use.