A digital camera has no 'film' and no 'development' is required. While the normal camera stores photographs as dark and bright patterns, a digital camera stores them as extremely long string of numbers - to be more specific, in the form of the binary digits 0 and 1, which are called bits.
An electronic equipment, called the light detector or image sensor captures the incoming light through the lens and converts it into electrical signals. The sensor chip is of two types:
i) Charge-coupled device (CCD)
ii) Complementary metal-oxide-semiconductor(CMOS)
while digital cameras too use the concept of pixels (like the TV or LCD computer screens), the process is entirely different. The screens in the latter consist of millions of tiny colored dots called the pixels. The equipment in them rapidly switches on and off these pixels. Light from the screen creates an illusion of a still or motion picture.
In a digital camera, something opposite happens. The sensor chip
i)breaks the light from the image into millions of pixels
ii) has a measure of color and brightness of each pixel and
iii) stores it as bits.
Note: The camera in a cell phone is also a digital camera.