Lenovo Q150, Form Factor: Small Form Factor, Processor: (speed, L2 cache, FSB) Intel Atom D510 1.66 GHz, 1 MB L2 cache, 1 core, 4 threads Preloaded operating system: Windows 7 Home Premium 64 bit Display/resolution: N/A Video graphics: Nvidia ION with 512 mb VRAM Serial ATA hard drive: 250 GB, 5400 RPM Memory: 2 GB DDR2 Maximum memory: 2 GB DDR2 Optical drive: N/A Camera: N/A TV Tuner: N/A Touch: N/A Keyboard: Wired USB Mini KB and Mouse Sound solution: HD 5.1 channel Integrated communications: 10/100 ethernet, 802.11 b/g/n Security: McAfee Virus Scan 2009 Trial Version Limited warranty: 1 year limited warranty Included software: Rescue System, McAfee Virus Scan,Power DVD