The marine industry uses computers and cyber-dependent technologies for navigation, communications, ship systems monitoring, and control. It also includes cargo transfers, access control, and passenger and cargo screening. Another major part of the marine industry is fire detection, financial and other business transactions, and other purposes.

Electronic devices are classed for use in the marine environment. Electronics onboard a bridge must be built within the limits of the bridge. The fact that they can come in contact with salt water makes them water-resistant or waterproof. A wide variety of marine electronics are available in the marketplace. Another important part of marine electronics is navigation equipment. The entire shipping industry relies on compasses, which include gyrocompasses and magnetic compasses. Hence the electronics components are a complete guide to the marine industry.