Apple iBook 12.1" G4 (1.33 GHz, 512 MB RAM, 40 GB Hard Drive, Combo Drive, OS 10.4.11) 512 MB of RAM and 40 GB hard drive Internal DVD-ROM/CD-RW combo drive Airport Extreme and Bluetooth installed OS 10.4.11 installed (OS CD not included) 12.1" 24-bit SVGA (1024 x 768) color active matrix, resolution scaling for 640 x 480 and 800 x 600 modes