Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Qosmio series is Toshiba''s consumer-marketed line of high performance desktop replacement laptops. The laptop was first released on July 25, 2004 as the E15-AV101 with a 1.7 GHz Intel Pentium M CPU, 512 megabytes of DDR SDRAM, and a 15 inch XGA 1,024 by 768 screen. Toshiba''s most powerful laptop has undergone many revisions, with focus shifting from high-end multimedia functionality to heavy gaming. The current line, the X500 series, was released on October 22, 2009, featuring an Intel Core i7 processor with up to 6 gigabytes of DDR3 SDRAM as well as an 18.4 inch HD display.