Dell Inspiron 4000 Service Manual page 59

PC Card Slot
The PC Card slot has two connectors that support various types of PC Cards, including modems and network adapters.
Hard Drive
The hard drive reads and writes data on a hard disk.
Security Cable Slot
This slot lets you attach a commercially available antitheft device to the computer. Complete instructions for installing antitheft devices are usually included
with the device.
NOTICE: Antitheft devices are of differing designs. Before you buy one, make sure it works with the security cable slot in the computer.
Speakers
Your computer has integrated speakers.
Right Side View