Invention History of Phototransistor and Photodiode

john November 6, 2013 1 Comment
Before touching the main topic of the invention history of the phototransistors, it is important to have a basic understanding on what phototransistors and photodiodes are. In simple words, a phototransistor is a transistor operated by light rather than electric current. In brief, a phototransistor is a bipolar transistor enclosed in a transparent case so that light can reach the base collector junction. This being the case of phototransistors, a photodiode is a kind of photo detector that is...
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Microprocessor – Invention History & Story Behind the Success of Intel

john November 5, 2013 1 Comment
Microprocessor – Invention History A simple integrated circuit that carries the central processing unit of a computer is the Microprocessor. Are you not fascinated to know what the history behind the invention of this tool is? If yes, this write up will help you know completely about how it was designed and the brains behind the scene. Before you know about the invention history of a microprocessor, let us check out what a real microprocessor is and what it...
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Invention History of Liquid Crystal Display (LCD)

john November 5, 2013 6 Comments
The history and development of the Liquid Crystal Display (LCD) is rather complex. The story of the LCD had an unusual beginning by an Austrian botanist in the 19th century. Though the LCD made a different and unstable start, its development proceeded from early successes like the pocket calculator to the key milestone of a flat panel television display that can be hung on a wall. The origin and development of the LCD spans the world’s major industrial centers...
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Invention History of C Programming Language and the Development of UNIX

john October 31, 2013 6 Comments
Invention History of C Programming Language There would be no surprise in saying that the C language literally shook the computer world? The impact of C cannot be underestimated because it completely changed the perspective with which programming was approached. The birth of the C language was a direct result of the need for a structured, efficient and a high level language that was capable of replacing the assembly code when creating systems programs. On the whole, The C...
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Invention History of Light Emitting Diode (LED)

john October 31, 2013 4 Comments
Most of us are aware that the semiconductor light-emitting diode or the LED is the major component of today’s technology. All our houses have plenty of tiny glowing indicators provided by LEDs; these indicators are employed for various aspects like reading CD and DVD disks in computer and game console drives or to transmit signals from remote controls to electronic equipment. Cars that are equipped with LED indicators are increasing in number these days. Most significantly, it should be...
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Capacitors – Invention History and the Story of Leyden Jar

john October 25, 2013 11 Comments
Capacitors are a great example to prove the fact that even the simplest of devices can become complex over the years; in case of capacitors, it is nothing more than an insulator between two conductors and it has become pretty complex in this 250 years of technical evolution!! Almost all of us are familiar with the static charge that is generated by friction – a phenomenon known as triboelectricity. When you walk on a carpeted floor, pull a transparent...
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Radio-Invention History & The Story of Fight for Patents

john October 24, 2013 2 Comments
Radio – Invention History The invention history of the radio is not only interesting but rather long as well. If you ask who invented the radio, probably you will get the name Marconi. But, was it really Marconi who invented the radio? Well, you have to determine for yourself after going through the journey of the invention history of the radio. There are a lot of knots to be untangled if you want to arrive at an answer as...
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Microcontroller – Invention History and Story Behind the Scenes

john October 23, 2013 8 Comments
Invention History of Microcontroller Would you believe that each one of you is using at least 20 microcontrollers in your house??!! Well, that’s a fact. There are more than two billion microcontrollers being produced every year. Almost everybody in developed as well as developing nations cannot think of a day without using microcontrollers. The microcontroller is an embedded computer chip that controls most of the electronic gadgets and appliances people use on a daily basis, right from washing machines...
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Zener Diode – Invention History & Story Behind the Development

john October 2, 2013 7 Comments
As we all know, a Zener Diode is used for regulating voltage in practical circuit applications. Though we know about the importance of this device, do we really mind knowing about how it was invented? If you had that query in your mind, then reading further would give you a thorough knowledge on the discovery of Zener Diode and its properties. You shall also be informed of the great scientists who worked on this device. Before going into the...
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Shockley Diode – Invention History

john October 2, 2013 No Comments
What is a Schockley Diode? In simple terms, a Shockley diode is a four layered semiconductor diode. In electronic terms, it is a “P-N-P-N” diode and is equivalent to a thyristor with a disconnected gate. Though this basic diode does not find much application in electronic circuits nowadays, the concept is largely employed and is one of the remarkable inventions in the history of electronics. The interesting history of the Shockley diode cannot be interpreted without mentioning a few...
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