Capabilities of the boat are equally dependent on the design and installation of different kinds of systems. Adding to it, one may also need installation of different marine electronics and electrical systems related to power, navigation, communications as well as entertainment.
As far as capabilities of marine electronics are concerned, it is right to say that they play a significant role in enhancing the capabilities of boats by ensuring three qualities including comfort, safety and high performance of different sized vessels.

Comfort
AC and DC panels are helpful in monitoring the power machines on-site. The application specific design, high efficiency, less maintenance and trouble free operation is four quality characteristic features of the AC and DC panels.
Multi-function displays are another electronic navigational system that plays effective role in the display of navigation route, weather radar, moving map, etc. Information related to boat status is viewed over the multifunction display.
VHF radios are such marine electronic systems which are used for a variety of communication purposes in vessels including communicating with harbours as well as summoning rescue services.
Altogether, proper functioning of these electronic systems adds comfort in boats and thus enhances the capabilities of vessels.

Safety
Battery plays an effective role in fulfilling power needs in boats. And having battery banks in vessels ensure safety on the move as one battery can be safely used for the engine and other batteries in battery bank can be interchanged for other on-board supplies and electronics. In case the battery is discharged, then engine supply can remain unaffected by using the battery bank where batteries are available for the GPS and Radar. Hence, it ensure safe running of the vessels.

Performance
For high performance of boats, high technology based marine electronics and electrical systems can be used. Chief navigation systems include instruments and transducers, windlasses and autopilots. Chartplotter, the device in marine navigation is useful in displaying chart data. The accurate position of the vessel is also computed with the help of this device.
Inverters, generators and chargers are three power systems that ensure high performance of vessel. Flat screen TVs and stereo systems are entertainment systems which are found in boats. Many more systems are there which are needed to maintain different functions in vessels.
From the above discussion, it can be concluded that a number of marine electronics and electrical systems are found which maximize the safety, comfort and performance of boats and thus enhance capabilities of vessels.