Despite the craze over great photos and photography in general, I managed to live with only a 3.2 megapixel mobile phone camera (I still do).
A DSLR camera has always been in my “wish list”, though nobody cared gifting me one 
– just kidding.
I was helping a friend of a friend with a .NET software, that required photos to be directly transferred to a PC as soon as they are captured. As far as I know, digital cameras go into a “USB mode” that makes them mass storage devices, just like ordinary USB thumb drives.