Operating system installed - Genuine Windows Vista® Home Basic, Compatible operating systemsGenuine Windows Vista® Home Basic ProcessorIntel® Celeron® M Processor 530 (1.83 GHz, 533 MHz FSB, 1 MB L2 cache) Dimensions (W x D x H)3.5 (at front) x 35.8 x 22.7 cm Battery lifeUp to 2h42m WeightStarting at 2.7 kg Display15.4 WXGA BrightView (1280 x 800 resolution) System features Internal storageSMART SATA hard drive 120 GB (5400 rpm) Hard disk drive speed5400 rpm Optical drivesDVD/CD-RW Combo, DVD+/-RW SuperMulti DL Memory upgradeUpgradeable to 2048 MB maximum ChipsetMobile Intel® 945GM Express Chipset or Mobile Intel® 940GML Express Chipset Memory typeDDR II, 533 or 667 MHz, 512 or 1024 MB Memory slots2 SODIMM slots supporting dual channel memory Portability Dimensions (W x D x H)3.5 (at front) x 35.8 x 22.7 cm Display15.4 WXGA BrightView (1280 x 800 resolution) Connectivity Wireless technologiesIntel PRO/Wireless 802.11 a/b/g, Broadcom 802.11b/g Fax/modem56K modem Expandability External I/O ports2 USB 2.0 ports, VGA, headphone, microphone, power connector, RJ-11, RJ-45 Software Pre-installed software Preloaded software: Adobe Acrobat Reader, HP Backup and Recovery Manager, HP Help and Support Center, Roxio Creator Basic 9, Synaptics Touchpad Driver, Symantec Norton Internet Security 2007 with complimentary 60-day live update, InterVideo WinDVD - DVD Player Graphic / audio Graphic card 01 Intel® Graphics Media Accelerator 950 Graphic subsystem video card memory 01 Up to 224-MB shared system memory Internal audio Conexant CX20549 audio, headphone jack, microphone jack Other information Keyboard Full-sized keyboard Pointing device Touchpad with scroll zone Power features 4-cell (32 WHr) Lithium-Ion battery Power requirements External 65W AC adapter, HP Fast Charge Technology Storage temperature range (Celsius) -20° to 60° C Operating temperature range 0° to 35° C HP Protection tools HP Drivelock, Configuration Control Hardware, Memory Change Alert, Ownership Tag, Setup Password, Power-On Password, Kensington Lock Slot Operating humidity range 10 to 90% RH Non-operating humidity 5 to 95% RH Security management Drive Lock, Kensington Lock slot