A photograph (often shortened to photo) is an image created by light falling on a light-sensitive surface, usually photographic film or an electronic imager such as a CCD or a CMOS chip. … see full wiki
I love photos and I've fiddled with dozens of cameras in my lifetime so much so that I've a new camera yearly for the last decade or so. Other than the phones, this has to be one of the greatest invention in our lives! Can you live without photo? I doubt I can! Imagine going through the rest of your life without a photo! That's totally depressing!!!