Striking just the right balance between performance, energy use, mobility and size, the Aspire 5741 delivers computing versatility. A cinematic 16:9 aspect ratio makes visuals sharper and more colorful on the Acer CineCrystal high-brightness display. The mesh-patterned exterior not only looks stylish but offers protection against smudges and scratches.OS: Windows 7 Home Premium (64 -bit), Software: Microsoft Works (full version) and Microsoft Office Home & Student 2007 (60-day trial), Processor: Intel Core i3-350, Memory: 3GB (2/1) DDR3, Storage: 320GB hard drive, 5400RPM, Integrated Super-Multi drive, 5-in-1 card reader, TFT Display: 15.6" Acer Cine Crystal, Graphics: Integrated ATI Radeon HD 4250 (256MB dedicated memory), Communications: 802.11 b/g/n WLAN, Gigabit LAN webcam, - Mobile Intel HM55 Express chipset - User upgradeable up to 8GB (one 4GB memory card in each slot) - 5-in-1 card reader supports optional MultiMediaCard, Secure Digital, Memory Stick, Memory Stick PRO or xD-Picture Card - Interface ports: DC-in, RJ-45 LAN, VGA, headphones/speaker/line-out, microphone, HDMI (High-Definition Multimedia Interface) with HDCP (high-bandwidth digital-content protection), three USB 2.0 - 15.0" (381.0mm) W x 10.0" (253.0mm) D x 1.0" ? 1.3? (25.0mm ? 34.0mm) H / 5.7 lb. (2.6kg) - Six-cell lithium ion battery: up to 4.0 hours life depending on configuration and usage - Mesh-black chassis - One-year limited warranty