This is an sony vaio laptop and this can accomadate as many as four Operating System. Many iterations have been made in this laptop. The original version of this laptop has only Core2 solo processor. This processor is replaced with Intet core 2 duo U7700 1.33GHZ processor and this processor has been overclocked to 1.438GHZ. The original 48GB SSB is replaced with 128GB RunCore Pro IV SSD. Wifi card Intel 3945ABG is replaced with Intel 4965AGN card for wireless-N..
