Invention History of Liquid Crystal Display (LCD)

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 including the US, Japan and Europe. Liquid Crystals – Discovery Liquid crystals were first observed by an Austrian botanist, Friedrich Reinitzer,…

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Invention History of C Programming Language and the Development of UNIX

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 language was designed by programmers and for programmers. The Mastermind behind the Invention Well, now who is the visionary who ended…

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Invention History of Light Emitting Diode (LED)

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 noted that LED is a crucial link between electronics and photonics. We have already written an article about the basics and…

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Capacitors – Invention History and the Story of Leyden Jar

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 tape off a role, or comb your hair on a dry day, have you noticed that it all results in the…

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Radio-Invention History & The Story of Fight for Patents

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 to who invented the radio. Was the inventor of radio the person who discovered that electromagnetic waves can be sent through…

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Microcontroller – Invention History and Story Behind the Scenes

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 to anti-lock brakes in cars. Now, how did this idea of a microcontroller emerge? What is the invention story of this…

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Image Representation in MATLAB – How to Represent Binary,Grayscale & Color Images

In this article, we are going to talk about images, their types and some basic functions for Images. This article is part of our MATLAB tutorial series, which we are developing for Image processing through MATLAB. We expect you to give us feedback, so that we can keep the information flow more efficient, informative and up to the mark. In the first chapter, you have learned an introduction to MATLAB and its commands. In this chapter you will learn how to represent different types of images in MATLAB. In addition you will learn how to read & display images in MATLAB…

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Object counter using 8051

Object counter using 8051 microcontroller. This article is about a simple object counter/visitor counter using 8051 microcontroller . AT89S51 belonging to the 8051 family is the microcontroller used here. This circuit can count the number of objects passing across a line , number of persons passing through a gate/door and so on. The can be simply divided into two sections i.e. the sensor section and the display section. Sensor. The sensor part consists of a ultra bright led (with focus), and LDR, opamp LM324 and the associated passive components. The LED is placed on one side of the door and…

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Zener Diode – Invention History & Story Behind the Development

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 invention story, let us have a brief note on what a Zener Diode is. Zener Diode This semi-conductor device permits the…

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Shockley Diode – Invention History

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 important life events of its inventor, the popular physicist and the co-inventor of the transistor, William Bradford Shockley. To know more…

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