Register Map in ArcGIS Raster

Before a map / image raster scanning results such as maps or downloaded from the internet that can be processed in a Geographic Information System software, the first map should be on the register. Register on how ArcGIS desktop like this:

Open a raster map to be processed
Activate the Georeferencing Toolbars via Tools> Customize> Check on the Georeferencing
Choose at least 3 or 4 points on the line of intersection coordinates, note that in notepad decimal coordinates (decimal coordinates obtained from X and Y gridlines intersect). For raster maps typically coordinates in degrees, the first coordinate conversion to decimal degrees.
Click the Add Control Point icon and point it right at the intersection coordinates> right click and inputs X and Y, enter the coordinates of which are recorded on the notepad and click ok and the map has to be used for digitization.