For example, you must connect most devices to a particular I/O port or connector to operate properly. Also, external devices like a printer usually require you to load device drivers before they will work.

When connecting a USB mouse or keyboard, ensure that you connect to one of the Port 1 USB connectors on the back of the computer.

Always attach external devices while your computer is turned off. Then turn on the computer before turning on any external devices, unless the documentation for the device specifies otherwise.

NOTICE: Before disconnecting a device from the computer, wait 10 to 20 seconds after turning off the computer to avoid possible damage to the system board.

Speaker/Headphone Jack

Used to connect computer speakers, headphones, or other audio output devices. This jack is amplified to support headphones.

IEEE 1394 (FireWire) Connector

Used to attach high-speed serial multimedia devices. For more information, see "IEEE 1394 (FireWire)."

USB Connectors

Used to attach USB-compliant devices such as printers and speakers to your computer.

NOTE: When connecting a USB mouse or keyboard, ensure that you connect to one of the Port 1 USB connectors on the back of the computer.

NOTICE: USB devices do not operate with Microsoft Windows NT.

About Your Computer

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Dell 530 manual Speaker/Headphone Jack, Ieee 1394 FireWire Connector, USB Connectors