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Electronic chartplotters are by nature processor intensive. They need to retrieve the GPS signal and overlay that on a map updating every few milliseconds. Some GPS software can run on standard computers, but most of the higher end is dedicated equipment. Especially when the [http://stores.psicompany.biz/-strse-23736/Furuno-MFD8-Multifunction-Display/Detail.bok chartplotter generates three-dimensional displays], as used for fishing, considerable processing power and video memory can be needed.
 
As with all marine systems, [http://%5Bhttp://stores.psicompany.biz/-strse-22421/Furuno-1824C-fdsh-NT--RADAR/Detail.bok%20GPS%20chart%20plotters chart-plotters] generally are not used alone. In commercial ships, they are integrated into a full system of marine instruments that can guide the ship under any conditions. These other instruments include [http://stores.psicompany.biz/-strse-26028/Koden-ESR-dsh-160-Scanning-Sonar/Detail.bok Sonar transducers], integration with [http://stores.psicompany.biz/-strse-23691/Standard-Horizon-GX1150-Eclipse/Detail.bok 2 Way Radio communication devices] and emergency locators [http://stores.psicompany.biz/-strse-25926/EP50-cln-MAN,EPIRB,Manual-Release/Detail.bok (EPRIB)].
 
The integration of these devices is very important as it becomes quite distracting to look at several different screens. Therefore, displays can often overlay charting, radar, sonar into a single system. This gives the captain unprecedented instrumentation to maneuver the ship. With digital backbones, these devices have advanced greatly in the last years. For example, the newer ones have 3D displays that allow you to see above, below and all around the ship, including overlays of satellite imaging
 
 
== Electronic Charts ==