Digital Electronics, Past, Present and Future Essay

Digital Electronics, Past, Present and Future Essay

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The age of digital electronics has come to be one of the most significant developments in the history of society. What were once manual time-consuming tasks and processes have now become programmed to the point where multi-tasking is an expected part of our lifestyles. So what is considered to be a digital electronic? They are sophisticated devices capable of sending information through electronic signals from point A to point B. The information is transmitted from one circuit to another by using electronic currents. However, the logic sequences that have been incorporated into the electrical circuit is what distinguishes digital electronics from the electronic devices from the past. Binary logic, also known as Boolean theory, implements a base two-value logic system of “true” and “false” to transport information through electric signals.
The electronic gate (circuit) is the source of what makes the electronics work. The electronic gate is where and how an electric current is sent. The first gate was a relay device invented by Joseph Henry in 1835, the next was a vacuum tube invented in 1904 by Sir John Ambrose. Soon after, transistors were developed leading to the construction of integrated circuits and microprocessors, which the digital electronics of today are made out of.
A digital circuit is typically constructed from small electronic circuits called logic gates that can be used to create combinatorial logic. These gates are the building blocks of all digital devices. Each logic gate represents a function of Boolean logic. The logic gates is the arrangement of switches, better known as transistors. The output of logic gates is electrical flow or voltage, which can control more logic gates. To re...


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...circuits doubles approximately every two years. This means that every two years circuitry will become more complex. Thus, creating more complex circuit boards that can perform more functions and end up taking the same amount of space as its predecessor.
Recently researchers have experimented on a new concept called “nano-electron-fluid logic (NFL).” It is predicted that logic gates with NFL offer the potential for a much higher switching speed. NFL work by using surface plasma waves that collide and repel each other. Depending on the direction the wave goes, it can be interpreted to have a 1 or 0. Using NFL in logic gates, the switching frequencies will increase and ultimately created fast signals. If it happens that NFL does not become viable, Moore’s law will still stay in effect. And so digital electronics will continue to become better and more complex.


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