The Acer Aspire AS5740-6491 Notebook PC offers smart performance with the new Intel® Core™ i5 processor. The new Intel Core™ i5 Processor with Intel® Turbo Boost Technology automatically adapts to whatever you are doing, responding to all your needs. It dynamically delivers optimal performance and energy efficiency for accelerated productivity. 802.11b/g/n Wi-Fi CERTIFIED™ delivers fast, reliable wireless connections in your home, at work or on-the-go. The Windows 7 Home Premium 64-bit operating system is designed to be more reliable, more responsive and to make the things you do daily easier - the best entertainment experience on your Acer Aspire AS5740-6491 Notebook PC. Enjoy cinematic brilliance on the 15.6" HD CineCrystal™ widescreen LCD Display with a true 16:9 aspect ratio and Intel® integrated graphics delivering crystal-clear images and brilliant color for today's best entertainment. Dolby Home Theater® Audio Enhancement, two built-in stereo speakers and 5.1-channel surrorund sound output liberate the senses with vibrant audio, bringing movies and music to life.