Apple iMac (21.5 and 27-inch, Late 2009) - Manual (Page 21)

Chapter 2 Life with Your iMac 21
Built-in microphone
Capture sounds directly on your iMac or talk with friends live over broadband
using the included iChat application.
Camera indicator light
The camera indicator light glows when the iSight camera is operating.
Built-in iSight camera
Videoconference with friends and family over broadband using iChat, snap
pictures with Photo Booth, or capture video with iMovie.
Slot-loading SuperDrive
The slot-loading SuperDrive reads and writes to standard-size CDs and DVDs.
SD card slot
Easily transfer photos, videos, and data to and from your iMac with an SD card.
Built-in stereo speakers
Listen to music, movies, games, and other multimedia files.
Built-in infrared (IR) receiver
Use an optional Apple Remote (available separately) with the IR receiver to
control Front Row and Keynote on your iMac from up to 30 feet (9.1 meters) away.