Layout of a Breadboard
Terminal strips are the main areas which hold most of the electronic components. The metal strips at the bottom of the breadboard have clips which allow you to hold a component in place once inserted into the holes. The wire or component is then electrically connected to anything else that is in that row.
Power rails (also known as bus strips) are metal strips that run in the opposite direction to the terminal strips giving you easy access to power wherever it is required in the circuit.
The ravine in the centre of a breadboard is used for DIP integrated circuits.
Uses of breadboards
Due to a breadboards prototyping capabilities, they are popular with students who use them to create simple or complex circuits.
Manufacturers also use breadboards to test out new parts so that they do not have to solder connections each time they test a new design. It gives them the ability to build, test then analyse the results.