What is the difference between a power adapter and a converter, and how do they affect the compatibility of electronic devices when traveling internationally?

A power adapter is used to physically connect a device to a different type of electrical outlet, while a converter changes the voltage of the electricity being supplied to the device. When traveling internationally, using a power adapter allows you to plug your device into different types of outlets, but it does not change the voltage. A converter is needed when the voltage in the country you are visiting is different from the voltage required by your device. Using the wrong voltage can damage your device, so it is important to use the correct converter to ensure compatibility when traveling internationally.