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## Types of computer ports and cables The following main ports and cables allow devices to connect to computers: * Computer power cords * Universal serial bus (USB) ports and cables * Video ports and cables * Audio ports and cables * Ethernet ports and cables ### Computer power cords The computer...

## Types of computer ports and cables The following main ports and cables allow devices to connect to computers: * Computer power cords * Universal serial bus (USB) ports and cables * Video ports and cables * Audio ports and cables * Ethernet ports and cables ### Computer power cords The computer power cord supplies electrical power to your computer from an alternating current (AC) wall power socket. Always make sure that you turn off your computer before you connect or disconnect your power cord. Pulling out your computer power cord without shutting down your computer can corrupt the data on your computer hard drive or damage the computer's hardware. Laptops need an adaptor that can convert the electrical power from the wall socket to the correct wattage that they need to work. Laptop adaptors come in many shapes and sizes, with each specific to the brand and model of laptop. Figure 1.3 Laptop adaptors showing different power connectors