![]() Due to the ability to supply power to the preipheral devices USB is often used as a power charger for portable devices.Īn USB system architecture consists of a host controller, a USB ports, and multiple connected devices. Nowdays USB has replaced a variety of earlier PC interfaces (such as RS-232 serial, parallel port, and even FireWire). ![]() Universal Serial Bus (USB) is an interface to establish communication between devices and a host controller (usually personal computer).
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