Historia electronica

THE EVOLUTION AND HISTORY OF ELECTRONIC

In this presentation, i talk about the evolution of Electronic, is a brief summary of some important events.
The modern electronics, has madefor a better live, easier, better advance and more things, but in the beggining was different.
There are many deffinitions, but the most admited is the Millman´s deffinition. This definitontells us that the electronic deal about devices and apllications in electricity and magnetism, and his principal component is the electron, as we shall see.
The electronic comes from electricityand magnetism. There are many scientifics that revolutionized the electricity, but for us, the principal started at 1800 with Alessandro Volta. He discovered the voltaic cell. At 1820 Hans Oesterddiscovered that around a conductor had an electric current a magnetic field. After this appear the Ampere, the Electrical motor and the first Electromagnet.
At 1827, George Simons Ohm published theOhm´s law, and in the same year, George Kirchoff exposed the Kircoff´s laws. Years later, born the telegraph, was a great technologic advance.
At 1876, Graham Bell invented the telephone. At1878 Thomas Edisson built the first incandescent lamp. Later, he imprub his incandescent lamp discovered that heating a metal, that emits electrical charge. It was called “Edison Effect”, later kwon asThermionic Emision. He created a device with one cathode and one anode.
At 1897, J.J.Thompons discovered the electron. The most advance of the electronic was given by Lee De Forest. At 1906 hediscovered the triode, the first device electronic amplifier.
The Triode is an electronic amplification device having three electrodes. The anode and the cathode are an electrode though wichelectric current flows out of a polarized electrical device. The Grid is an electrode used in thermionic valves, used to modulate the flow of electrons in the cathode to anode.
At 1920...