About Your Computer 21O P T I C A L D R I V E B A Y — You can install devices such as a DVD drive or other optical drive in the optical drive bay.For more information, see "Optical Drive" on page 92.O P T I C A L -D R I V E -T R A Y E J E C T B U T T O N — Press this button to eject a CD or DVD from the optical drive.Right Side ViewH A R D D R I V E — Stores software and data. For more information, see "Hard Drive" on page 92 and "Hard driveproblems" on page 67.EX P R E S S CA R D S L O T — Supports one ExpressCard. The computer ships with a plastic blank installed in the slot.You can add an ExpressCard to make WWAN connectivity available on your computer. For more information, see"Using Cards" on page 51.3-I N -1 M E D I A M E M O R Y C A R D R E A D E R — Provides a fast and convenient way to view and share digital photos,music, and videos stored on a media memory card. The 3-in-1 media memory card reader reads Secure Digital (SD)card/SDIO and MultiMediaCard (MMC) digital media memory cards.1 hard drive 2 ExpressCard slot 3 3-in-1 media memory cardreader4 audio connectors (2) 5 USB connectors (2)3 4 521book.book Page 21 Wednesday, April 4, 2007 7:31 AM