It is a system that acts in a similar way to a common photographic camera, with the difference that it stores them in a digital memory. In times past, photos were printed almost immediately after being taken, however, the digital camera revolutionized the market and consumers decided to opt for it, since photographs could be preserved without the obligation of having to be printed, in addition to that offered higher image quality.
Today, cameras of this type not only take photos, they can also capture videos. Eugene F. Lally, was the man who developed the concept of taking still pictures, to later be digitally processed, all to help astronauts in space travel; Originally, the concept talked about a mosaic that would form when taking the still image.
Finally, it was the Kodak company that registered the first film-free camera in history, in 1975; the prototype was built by engineer Steven J. Sasson. Among its outstanding characteristics, it is found that it weighed 4kg and could capture the photograph in 23 seconds, in addition to recording them in black and white and with a resolution of at least 0.01 megapixels. In 1988, the Fuji company developed the DS-1P, which did record images completely digitally, in addition to being able to be saved as a file on a computer. Despite everything, it was in 1991 that the first digital camera was had on the market and it was called Dycam Model 1.
There are different methods to capture images, from single shots, in which light rays only pass through the camera sensor once, to multi- shots, in which the sensor captures more than three times the light or scanning, in the that scans the environment as if it were a desktop scanner.
