The image is accumulated and then transmitted through a parallel port to a computer.
Software then converts the bits into images.
For use with a telescope, the camera was disassembled, the lenses and filters were removed, and the CCD and supporting electronics were housed in a plastic electronics project box. A PVC pipe fitting was modified to attach the project box to the telescope focuser. More Detail - What can be seen with a CCD and a telescope is a function of the sensor size, sensor construction, and the telescope's focal length. With a detailed Moon atlas, features half that size can be identified. For comparison, the best available technology can view features about the size of a football stadium.