digital circuits

the world of electronics was once dominated by analogue signals—that is, signals that represent a continuous range of values. In digital circuitry however, we have only two states: on and off, commonly referred to as 1's and 0's. Digital information has its roots back in the Victorian era thanks to George Boole, who developed the entire concept of Boolean algebra.

The basics of digital electronics involves learning about logic gates, semiconductors, microprocessors and advanced electronic components. A digital signal has two or more distinguishable waveforms; high voltage and low voltages, each of which can be mapped into a digit.

Digital logic as we know it is a logical operation that can be carried out by electrical switching circuits and vacuum tubes. Electrical circuits have been around since the 17th century. BUt it wasn't until the 20th century, that brought with it the invention of vacuum tubes and digital circuits, which made the first electronically programmable computer possible in 1941.

Every aspect of our lives is becoming increasingly integrated and interconnected by the Internet of Things (IoT). Our lives now consist of computers by default and we see all kinds of embedded systems everywhere we go, even in our homes. These devices run and operate on software which has Boolean logic at its core, in conjunction with digital information. The world around us may still be analogue, but with every passing moment, our interaction with the world is becoming more digital and more integrated than the one before it.