There are numerous terminologies used in the world of electronics. From the hardware to the software, there are millions of concepts that are used to create astonishing products and projects. You already know that the RasPi is a single-board computer that contains plentiful electronic components built in, which makes us very comfortable to control and interface the different electronic devices connected through its GPIO port. In general, when we talk about electronics, it is just the hardware or a circuit made up of several Integrated Circuits (ICs) with different resistors, capacitors, inductors, and many more components. But that is not always the case; when we build our hardware with programmable ICs, we also need to take care of internal programming (the software). For example, in a microcontroller or microprocessor, or even in the RasPi's case, we can feed the program (technically, permanently burn/dump the programs) into the ICs so that when...