Lenovo ThinkPad R52, 1.73 GHz, 38.1 cm (15"), 1024 x 768 pixels, 0.5 GB, 60 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: 0.5 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 60 GB, Optical drive type: DVD±RW. Discrete graphics card model: AMD Mobility Radeon X300. Operating system installed: Windows XP Professional. Weight: 2.8 kg