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500 BCE
The abacus **Copumputer**
The abacus was invented -
Electricity **General**
Benjamin Franklin discovers the electricity -
The battery **General**
Volta discovers the battery properties. -
The telegraph ** Telegraph**
º William Fothergill Cook y Charles Wheatstone invent the first commercial teleraph
º It´s known as the conqueror of space and time.
º The main contribution of the telegraph was the inmediate communication. (3*10**8 m\s).
º Telegraph: distance + write. -
Telegraph improvements **Telegraph**
º Samuel Morse improves in many ways the telegraph at a point that it´s considered the telegraph father.
º Develops a single-wire system, creates the morse code, enabled messages to be sent across further distances... -
Computer algorithm **Computer**
º Ada Lovelace works on the first algorithm designed to be processed in a computer -
The telephone **Telephone**
º Antonio Meuci creates the first telephone known has telettrofono
º The main contribution of the telephone was that it allowed a more verbal and direct communication between the users.
º Telephone: Sound + Distance -
The commercialization of the telephone **Telephone**
º Graham Bell adquires the patent of the telephone.
º Bell improves and sell to the masses the telephone. -
The Nipkow disc **Television**
º The nipkow disc consisted of a wheel with many images that rotates and a ligt that reflected those images to create a "living image". -
The prediction and demonstration of electomagnetic waves. **The radio**
º In 1867 Maxwell predicted the existence of electomagnetic waves.
º In 1888 Hertz demonstrated Maxewells theory. -
The invention of Tesla coil **Radio**
º Nikola tesla creates the tesla coil which ables the sound waves to transmit inalambricaly -
The radio **Radio**
º Marconi achieves to transmit wirelessly sound waves at short distance.
º The contribution of the radio is that it allowed wireless communication.
º The radio was the first invention that connected an emisor to many receptors.
º Radio: "Radious" (lightning). -
The first television **Television**
º John Logie Baird sincronizes 2 Nipkow discs and creates the first electric television. -
The iconoscopy and Cathode Ray Tube **Television**
º The iconoscopy is invented by Vladimir Zworykin in 1931, the insist on fotoelectric cells.
º The cathode ray tube is invented also by Vladimir Zworykin in 1934, with the help of electromagnetic fields deflected the electrons -
The first real computer **Computer**
º Konrad Zuse invents the first real computer.
º His computer implemented binary code, it was the first fully programmable computer designing the first programme language...
º Computer: "Computare" (Calculate). -
The television **Television**
º There were many contribuitors for the creation of the actual television.
º The TV allowed image transmision wirelessly.
º Television: distance + vision. -
The transistor **Computer**
º John Bardeen, Walter H. Brattain and
William B. Shoclkley invent the transistor.
º Transistor: Trasfer + Resistance.
º The transistor used semiconductors materials to interrupt or connect electric circuits.
º It meant an automatization and simplification of many machines and led to the creation of the binary code. -
Interconnected computer web **Internet**
º Paul Baran presents an interconnected web of computers enabled to a descentralized connection.
º The actual internet operates in the same way that did Paul Barans web.
º The internet allowed the a wireless connection to all the "connected" computers in the web, which was key for any type of data exchange (video, sound, image or text). -
The first desktop computer **Computer**
º Olivetti corporations commercializes the first desktop computer. -
Arpanet **Internet**
º The US governement develops the arpanet during the cold war to have a secure way of communication. -
Windows **Computer**
º Microsoft company founded by Bill Gates publishes the operative sistem of Windows v1.0. -
Web sites **Internet**
º Tim Berners Lee invents the protocol of hipertext transferency using mainly the https, thus, creating the web sites. -
The INTERnet **Internet**
º The internet is made public to everyone