Digitizing is the process of converting a continuos signal (such as sound or video) into distinct units that the compute or other electronic equipment can process. There are many ways to digitize things. there is the microphone, which digitizes sound. The scanner can digitize photos and other images. A digital camera is able to bring video into the computer. You can also digitize 3D objects. For that you use a 3D digitizer. These come in many different shapes and sizes. They usually use lasers to map out the 3D points and create a mesh. Some other ones may use a pen as a probe which is attached.
