Lenovo ThinkPad R52, 1.73 GHz, 38.1 cm (15"), 1024 x 768 pixels, 0.25 GB, 40 GB, Windows XP Professional Lenovo ThinkPad R52. Processor frequency: 1.73 GHz. Display diagonal: 38.1 cm (15"), Display resolution: 1024 x 768 pixels. Internal memory: 0.25 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 40 GB, Optical drive type: DVD-ROM. Discrete graphics card model: Intel® GMA 900. Operating system installed: Windows XP Professional. Weight: 2.8 kg