Hello, Fitted with a high-capacity 4 GB DDR3 RAM, a powerful Intel core i3 with 5th Generation processor, operating system with DOS and a big internal memory 500GB ROM, Suitable For Processing & Multitasking of many virtual apps, battery backup with 3hrs. Screen size with 15.6 inch and audio properties-1 x 1.5 W Speaker, very good sound reception. Read/Write Speed, 8x very fast. With the Lenovo Ideapad 100 you never have to compromise on anything. It is not only sleek and stylish, but it is also equally powerful to give you a smooth performance. this laptop works as hard as you.