A camcorder combines both a video recorder and a TV camera. Light (or the image you are trying to record) goes in through the lens and hits a small electronic device called a CCD. This electronic part, the charge-coupled device (CCD) creates signals that are electric. This CCD is a grid-like semiconductor (a special material like silicon that partially allows electricity to flow through it) that is made up of thousands of little pixels (a dot that forms part of a picture) or points. After the light from the image hits a pixel, it creates an electrical charge. These signals form a magnetic field. This field allows little magnetic particles to be recorded on the videotape. These little magnetic particles come together to produce the picture on the tape as the tape rolls over a spinning drum just like inside a video recorder.