Digitalization is a process that consists of converting continuous analog signals into a finite number of discrete states. The digital electronics or digital electronic circuits are an interesting part of the whole domain. The numbers and words are good examples for digital information; we can manipulate them only by techniques of digital electronics. The digital electronics represent more advantages compared to analog circuits, for example, the digital signals can be transmitted due to noise, so there is no degradation.
The electronics are important in many fields; it is used by professionals, but by beginners too. When somebody starts to make hobby electronics, the first thing is to learn some basic electronics, it is strongly recommended to start with the basic theories. We cannot start to make any hobby electronics without learning about the amplifier, averages, circuits, clippers and limiters, electromagnetism, heat or light.
There are many people, who are interested in electronics, but they didn’t make professional studies in this field. The most important thing when someone starts the hobby electronics is to build a kit of some essential tools. The starters can buy very simply an electronic hobby kit; there are very simple kits of this. Then the starter has to choose a project, he/she has to build something using only the tools, what are in the purchased tool. Some people starts the hobby electronics with some pieces based on microcontrollers, but if we want to understand how the electric circuits are functioning, we have to avoid microcontrollers.
The discovery of the electricity was a big step in the human history, it influences every day of our life. Probably we should talk about the ancient Romans and Greeks first time related by the history of electronics, but they probably didn’t really know what they were doing, so we have to start with the modern periods. It is very important that many individuals contributed to create the base of electronics with hundreds or thousands of electrical experiments.