Camera, From daguro type to digital

The smart art of photography. The word photography is derived from the Greek word 'photos' means light and 'graphos' means drawing. That is photography means 'drawing with light'.
The word camera means dark room. In short to draw with light we need a dark room!
In the olden days there is a belief that if we take photos our life span will be lowered.But by overcoming all these this superstitious believes photography had grown to a lot to X-Ray and infra red with digital technology.
With the growth of this technology there is many consumers for digital cameras than analogs.Several Features like picture sharpness, resolution, auto-focus, white balance, etc. is determining the face value of this cameras,. That today even low cost models are capable of reproducing images of several mega-pixels. Now one of the main attraction of mobile phones is there built-in cameras with video recording.