Apple iMac G5 Desktop with 20" M9845LL/A (2.0 GHz PowerPC G5, 512 MB RAM, 250 GB Hard Drive, SuperDrive) (Discontinued by Manufacturer) 2.0 GHz PowerPC G5 running Mac OS X version 10.4 "Tiger" 512 MB DDR SDRAM, 250 GB hard drive, and SuperDrive (DVD-RW/CD-RW) 20-inch (viewable) widescreen TFT active-matrix LCD, 1680 x 1050 pixels, millions of colors Two FireWire 400 ports; three USB 2.0 ports, two USB 1.1 ports (on keyboard); VGA output; S-video and composite video output Built-in 10/100/1000BASE-T (Gigabit) and 56K V.92 modem