tower case: front view![click to hear](/images/speaker.jpg)
Tower case: rectangular enclosure that is taller than it is wide; it houses the operating components and peripherals of a personal computer.
earphone jack ![click to hear](/images/speaker.jpg)
Slot that takes the plug from the earphones.
floppy disk drive ![click to hear](/images/speaker.jpg)
Device used to read or record data on a diskette.
volume control ![click to hear](/images/speaker.jpg)
CD/DVD-ROM drive ![click to hear](/images/speaker.jpg)
Playback device using a laser beam to read the data recorded on a compact disc (CD) or digital versatile disc (DVD).
bay filler panel ![click to hear](/images/speaker.jpg)
Standard-sized panel covering an unused compartment through which electronic hardware can be added.