Digital electronic
Digital electronics is the most modern and rapidly evolving branch of electronics. It deals with electronic systems in which information is encoded in discrete states, unlike analog systems where information takes a continuous range of values.
In most digital systems, the number of discrete states is only two and they are called logic levels. These levels are represented by a pair of voltage values, one close to the circuit reference value (usually 0 volts, ground or "GND"), and another close to the value given by the circuit power supply.. These two discrete states are given many pairs of names in electronics books and other specialized texts, the most common being "0" and "1", "false" and "true", "off" and "on" or "low" and "high" among others. Having only these two values allows us to use Boolean algebra and binary codes, which provide us with very powerful tools to perform calculations on the input signals.
When we talk about digital electronics we are in the presence of the greatest advance in terms of electronic science. At first the mechanisms interacted with each other by preconceived movements and sequence to obtain the same result, the invention of valves, then transistors, chips and finally microprocessors as well as microcontrollers have led this science to position itself as a one of the most accurate in terms of data, image and video processing.
The most complex, applied and useful digital systems today are possible thanks to the integration of electronic, computer and mechanical components, tools, equipment and subsystems. In modern times it is so easy to touch a screen with our hands (touch screen), execute a voice command and change a channel or open a window, turn a light bulb on and off; all thanks to digital electronics. As her name indicates, she relies on her own language, the binary code language & # 34; 1 & # 34; and "0", cycles of words, passwords, bit and byte sequences are created and what was never thought to be possible to monitor a process thousands of kilometers away in real time becomes a reality. All other science today is due to the invention of digital systems, it's hard to think about cooking something, calling a distant relative or going to the movies without putting aside digital electronics.
That is why we can say that it itself contemplates the best advances and leads life into the future, of course complemented by telecommunications and exact sciences, information technology, mechatronics, medical science with applications of prostheses, brain chips, same virtual reality games and children's video games and the not so childish ones. In conclusion, the technological developments gestated in laboratories, military installations, advances and humanitarian aid to countries and people in places, even today, remote and inhospitable, would not be possible without this branch of engineering, electronics, but mainly, digital, which is today one of the most important, versatile and continues to advance and grow in globalized times.
Digital electronics has reached great importance because it is used to make automatons and because it is the cornerstone of microprogrammed systems such as computers.
Classification
Digital systems can be classified as follows:
- wiring systems
- combinations
- sequential
- memories
- converters
- programmed systems
- microcontrollers
- microprocessors