Lenovo ThinkPad X61, 30.7 cm (12.1"), 1024 x 768 pixels, 80 GB, 1 GB, Windows Vista Business, Black Lenovo ThinkPad X61. Display diagonal: 30.7 cm (12.1"), Display resolution: 1024 x 768 pixels. Internal storage capacity: 80 GB. Processor frequency: 1.6 GHz, Processor family: Intel® Core™2 Duo. Internal memory: 1 GB. Weight: 1.8 kg. Operating system installed: Windows Vista Business. Product colour: Black