A digital camera, is an electronic device which is used to transform images into electronic data. Modern digital cameras are typically multifunctional and the same device can take photographs, video, and/or sound. Steven Sasson, an engineer working for Eastman Kodak, is credited with developing the first digital camera, an 8-pound toaster sized box that captured a black-and-white image on a digital cassette tape at a resolution of .01 megapixels. Sasson's masters supervisor, Gareth Lloyd, set him an open ended assignment. The question was simply 'Could we build a camera using solid-state imagers?'
At that time (in the 1970s) the CCD (charge coupled device) had just come out, and people were curious about its applications. Before that time television cameras had converted images into analog electrical signals, cameras aboard robot space probes had digitized photographs using vacuum tube components and relayed them back to Earth, and Texas Instruments had designed a filmless but analog-based electronic camera in 1972.
Digital still cameras are cameras whose primary purpose is to capture photography in a digital format. The first classification was that a digital camera was characterized by the use of flash memory and USB or FireWire for storage and transfer of still photographs, and this is still the common meaning of the unadorned term. However, modern digital photography cameras have a video function, and a growing number of camcorders have a still photography function.