Sony PCG-F490 Manual

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Connecting Peripheral Devices
You can add functionality to your computer by connecting any of these 
peripherals:
Phone line (page 44)
External display (page 50)
External mouse or keyboard (page 53)
External speakers (page 54)
External microphone (page 55)
Digital video camera recorder (page 56)
Universal Serial Bus (USB) device (page 57)
Before you connect peripherals, turn off the computer and all peripherals.
You do not need to turn off your computer to connect USB devices.
Connect the power cord only after connecting all cables.
Turn on the computer only after turning on all peripherals.