Hewlett Packard Probook 4510s Intel Core™2 Duo T5870 2.0GHz Processor, 3GB Ram, Massive 250GB HDD, DVD-RW Drive, 15.6” TFT Screen, Wi-Fi® Wireless 802.11 b/g, Bluetooth, Integrated Webcam, Numeric Keypad, 3D Hard Drive Protection, Hard Drive Encryption, Windows XP Professional or Windows 7 Professional Weighing only 2.49kg, Battery life up to 5hrs, 1 Year Warranty,