color=#000000 size=2>HP recommends Microsoft? Windows? XP Professional Mobile Intel? 915PM Express Chipset 8 cell lithium ion battery 90 watt power adapter Touchpad with scroll zone 1.1 inches thin and 5.8lbs 15.4-inch wide screen display ATI MOBILITY Radeon X600 graphics controller (PCI Express) Interfaces: Two type I/II, integrated Secure Digital flash media slot, three USB 2.0, 1394, serial, s-video out, VGA, RJ-45/RJ-11, infra red, audio in/out, docking connector