3GB memory lets you run demanding programs. 320GB hard drive holds thousands of songs, photos and documents. Wireless-N (802.11n) for high-performance, cable-free networking. Lets you access wireless networks to share files, surf the Web and exchange email. Fully compatible with 802.11b/g as well. Wired networking is supported, too. 15.6” diagonal LED-backlit TruBrite® display. LED backlighting permits a thinner and more energy-efficient screen. Plays and burns CDs and DVDs. Plus, built-in Labelflash® technology lets you create and burn your own labels right onto discs (Labelflash media is required, sold separately). Memory card reader for fast, easy photo transfers. Transfer your digital photos, music and other files from these memory cards: Secure Digital (SD), SDHC, miniSD and MultiMediaCard (MMC). Built-in webcam and microphone let you keep in touch with others via video and voice messaging. Face recognition software provides hassle-free logins, without typing passwords. Integrated numeric keypad speeds data entry and calculations. Provides up to 5.9 hours of battery life on a single charge. Microsoft® Windows® 7 Home Premium 64-bit. The newest version of Windows makes everyday tasks simple. Supports Energy Star® and EPEAT® Gold standards.