57English EnglishUSB devicesYour computer features two USB (Universal Serial Bus) ports for connecting a range ofUSB peripherals. See "External input devices" and "Printer" for information onconnecting a USB keyboard, keypad, mouse or printer. Other common USB devicesinclude digital cameras, scanners, and external storage devices.USB is plug and play, which means that you can connect and start using a USB devicewithout having to restart your computer. You can also disconnect the device at anytime.A further advantage of USB is the ability to use USB hubs. This means that severaldevices can share a USB port simultaneously.