Answer:
Computer components (such as a CPU, RAM, or hard drive) and peripherals (such as a printer, scanner, or keyboard) communicate with each other via buses (collections of wires that transport data from one location to another). USB (Universal Serial Bus) is an external bus standard. You can use USB cables to connect peripherals and portable devices (such as PDAs, MP3 players, or digital camcorders) that use the USB standard to your computer. FireWire is another example of an external bus standard.
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