Photographic camera.

The first photographic camera is attributed to the invention of the French brothers, Charles and Vincent Chevalier, who made the camera made of wood for Joseph Niepce in 1826, it was created because before they made painted photos and to save time and work they created the camera .

Computer 

In 1941, Konrad Zuse was the first to build a working computer. He did it in the living room of his parents' house in Berlin. This computer could store 64 words, its original price was US $ 666 dollars ... it was created with the objective of deciphering the communications of the Germans during the Second World War.

Telephone.

the Italian Antonio Meucci ... He built it in Havana Cuba was invented in 1854, It had a starting price of $ 3,995, it was created to connect his office with his bedroom and thus be able to talk to his wife, who was immobilized in bed for a disease.

TV

John Logie Baird British, inventor of television, was created on January 26, 1926, it was created in Germany, its price was quite high: $ 1,000, it was created to be able to have transmissions through satelited and antennas,

Fridge.

Oliver Evans designed the first refrigeration machine. It was created in Europe in 1805, it cost $ 2,000, it was created to make ice that would cool the air for his yellow fever patients.

microwave

the American engineer Percy Spencer created the first microwave. the creation It happened in 1945, it was created in the United States, the cost was $ 3,000, it was created to cook or heat food that is generated by electromagnetic waves.