A PCB is the acronym for Printed Circuit Boards, which are cards or circuit boards that are composed of a very thin flat metal or hard plastic-type board called an insulator. It is upon this that computer silicon chips and other similar electronic components are mounted. These PCBs are then used in electronic appliances like televisions, computers, washing machines, digital cameras, and so forth.

A prototype can be considered the first working model of an invention. So in this case, a PCB prototype is the first circuit board that is invented for a new electronic device. By using this PCB prototype in the electronic device, the inventor can see if the prototype serves its purpose in the invention. Once the electronic device is made to function with the PCB prototype, any mistakes that take place can be rectified in the prototype. In this way, the PCB prototype saves the inventor of the electronic appliance lots of money, as any mistakes that may be present in the PCB will be pinpointed before the actual commercial manufacture of the PCB.

Without having a PCB prototype, the model of a new invention will be of no use if its PCB is not in good condition and up to requirements. Electronic appliances are getting more and more technologically advanced by the day. This advancement is done through changes on a PCB prototype, which is then tried on the appliance to see if the advancement is in right order. Using different materials of the PCB also account for changes in the PCB prototype. You can use fiberglass, Teflon or cross-linked polystyrene for the PCB, and it is through the PCB prototype that you find out which PCB material best fits your PCB. Nowadays, new PCBs are in use in electronic appliances, thanks to the PCB prototypes.