The components are connected side by side with tracks on the board. It is absolutely to develop very large circuits on small circuit boards with the availability of very small electronic components. The connections on the circuit board are made via the copy tracks and as long as they are manufactured correctly, you are not dealing with short circuits or loose connections. Compare this to other methods that use real wires, which can become loose when the board moves. In some cases, the cable itself may have a connection problem. All of this can be difficult to trace and the source of the real problem. If the circuit has a…