Removing and Installing Parts 49Front and Back View of the ComputerFront View1293486 51071 CD or DVD drive-activity lightThe drive activity light is on when the computer reads data from the CD or DVDdrive.2 CD or DVD drive ejectbuttonPress to eject a disc from the CD or DVD drive.3 floppy-drive eject button Press to eject a floppy disk from the floppy drive.(On computers with an optional floppy drive.)4 hard-drive activity light The light is on when the computer reads data from or writes data to the hard drive.The light might also be on when a device such as your CD player is operating.5 headphone connector Use the headphone connector to attach headphones and most kinds of speakers.6 USB 2.0 connectors (2) Use the front USB connectors for devices that you connect occasionally, such asjoysticks or cameras, or for bootable USB devices (see "System Setup" on page 82for more information on booting to a USB device).It is recommended that you use the back USB connectors for devices that typicallyremain connected, such as printers and keyboards.7 power button Press to turn on the computer.NOTICE: To avoid losing data, do not use the power button to turn off thecomputer. Instead, perform an operating system shutdown.
