Universidad Gerardo Barrios
School of law international relations.
Carrer. Bachelor's degree in international relations and business.
Subject. Basic English II
Professor. Vanessa Argueta.
Students. Katya Lorena Ramirez Vasquez
Group A1.

ARITHNOMETER 1820

Who created this device ?, When and where did they create it?
It was created by Charles Xavier Thomas de Colmar in 1820. This machine was a calculator that could carry out the four basic operations: addition, subtraction, multiplication and division. BABBAGE DIFFERENTIAL MACHINE 1822 The first of these devices was conceived in 1786 by Johann Helfrich von Müller but was never built. The machine at the beginning were differential was forgotten and years later rediscovered, in 1822, by Charles Babbage, who proposed it in a communication to the Royal Astronomical Society on June 14, entitled "Note on the use of machinery for computing of very large mathematical tables ".
¿What was the price when it first went on the market?
A 12-digit arithmometer sold for 300 francs in 1853, which was 30 times the price of a book table of logarithms and 1,500 times the cost of a first-class stamp, 20 French cents.


-Why did you create it?
Because it was capable, unlike the previous ones, of performing the four basic operations (add, subtract, multiply and divide) in a simple way, with results of up to 12 figures. Its shortcomings were that it could not be programmed to perform calculations in succession and that it was not capable of keeping a partial result in memory.

Photographic camera 1826

Who created this device ?, When and where did they create it?
The first camera that was small enough to be considered portable was built by Johann Zahn in 1865. It was made of wood and manufactured by Charles and Jacques Vicent Louis Chevalier in Paris. However, although it is "officially" considered that this was the birth of photography, the invention of the camera obscura is earlier. But it was not until the invention of photography that images could be permanently fixed; meanwhile the images had to be drawn manually
The original camera obscura was a room whose only source of light was a very small hole in one of the walls. The light that entered it through that hole projected an image of the outside on the opposite wall; the image was reversed and blurred. Leonardo Da Vinci defined a camera obscura.
¿What was the price when it first went on the market?
In itself, a price does not appear to me as is, so I do not know the price for which the value was sold in those years, the value that now has costs from 300 to almost a thousand dollars depending on the camera model and how professional it is today

-Why did you create it?
These were created to project better quality images, they were also useful to CCD sensors, with the ultimate goal of creating a camera in which there was no moving part. Everything had to be digital, from image capture to information storage.

Sound equipment 1877

Who created this device ?, When and where did they create it?
It is considered that the true inventor of the first sound equipment was Thomas Edison. In 1877 he created the phonograph, the first device capable of recording and reproducing sound. It transmitted the vibration of sound to a needle that scratched a rotating cylinder made of cardboard and tin. Later it allowed to listen to the registered wave.
¿What was the price when it first went on the market?
Why won't their real prices come out from years ago I don't know? Today's prices are the only ones that come out that vary by the brand of each one in whether their regular prices are close to $ 200 or more depending on the evolution they have today, the devices of before were very old that They did not have an exact price, it is said that the vast majority who owned one of them was because they were people of a lot of money. It does not have an exact price of how much they cost in those years
-Why did you create it?
The phonoautograph was considered a laboratory curiosity, for the study of acoustics. Its purpose of creation was to determine the frequency of a musical tone, and to study sound and speech.

Radio 1901
Who created this device ?, When and where did they create it?
One hundred years ago, on December 12, 1901, the Italian physicist Guillermo Marconi invented radio, connecting Europe and America for the first time by means of a radiotelegraphic signal, a historic date for the development of modern communications.
Marconi, who was 27 years old at the time, was in San Juan de Terra Nova (Canada), with his ear to his rudimentary receiver, when he heard the three brief touches in Morse code of the letter "S", emitted 3,000 kilometers from distance, from Poldhu in Cornwall, in south-east England.
¿What was the price when it first went on the market?
I do not know its price

-Why did you create it?
The idea was to oppose the imposition of a commercial monologue of messages and that allow a greater proximity of the radio with the community. Therefore, they created radio to find a new alternative for people to know what was related to the world. And it could be heard by all kinds of people

Washing machine in 1901

Who created this device ?, When and where did they create it?
Alva John Fisher (1862-1947) was an American engineer who invented the first electric washing machine in 1901, although he would not patent it until 1910. He improved his own model with the use of a drum that automatically changed the direction of rotation thereby better washing results were achieved. It was one of the best artifacts back then.
¿What was the price when it first went on the market?
Its price has plummeted. “If in the seventies one of them could cost 30,000 pesetas, a couple of months of work at that time, today its current price is equivalent to the salary earned in 10 days of work by someone who earns 1,000 euros a month.
Why did you create it?
I created it in order to provide a better way for people to use the washing machine to wash more easily. Since it was something very necessary for the home, but not everyone had the same ease of buying said device.

Television 1926

Who created this device ?, When and where did they create it?
It is an electronic device for the reception and reproduction of television signals. Usually it has a screen and commands or controls. It was created on January 26, 1926 by Jhhn Logie Baird. Its foundation is based on the phenomenon of photoelectricity, which is responsible for the transformation of light into electric current in a camera that can be transmitted by high frequency waves to the receiving antennas and is reproduced on the screen of our televisions. . The television is one of the most commonly used appliances. LCD is the latest technology.
¿What was the price when it first went on the market?
There was no price is unknown

Why did you create it?
He believed in the possibility of transmitting images by waves, just as the radio did. However, it was a very advanced conception for the time. For this reason, investors did not grant financing for its development.

COMPUTER 1941

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Universidad Gerardo Barrios
School of law international relations.
Carrer. Bachelor's degree in international relations and business.
Subject. Basic English II
Professor. Vanessa Argueta.
Students. Katya Lorena Ramirez Vasquez
Group A1.

ARITHNOMETER 1820

Who created this device ?, When and where did they create it?
It was created by Charles Xavier Thomas de Colmar in 1820. This machine was a calculator that could carry out the four basic operations: addition, subtraction, multiplication and division. BABBAGE DIFFERENTIAL MACHINE 1822 The first of these devices was conceived in 1786 by Johann Helfrich von Müller but was never built. The machine at the beginning were differential was forgotten and years later rediscovered, in 1822, by Charles Babbage, who proposed it in a communication to the Royal Astronomical Society on June 14, entitled "Note on the use of machinery for computing of very large mathematical tables ".
¿What was the price when it first went on the market?
A 12-digit arithmometer sold for 300 francs in 1853, which was 30 times the price of a book table of logarithms and 1,500 times the cost of a first-class stamp, 20 French cents.


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