Fax machines will work by digitizing an image that is dividing it into a grid of points. Each dot is either on or off, depending on whether it is black color or white color. Electronically, each point is represented by a bit that has a value of either zero (off) or one (on). By this way, the fax machine can translate a picture into a series of zeros and ones that can be transmitted like the normal computer data. online fax is advanced form of this. online fax uses the internet to packet the data to the destination number which is specified