Hp is well known for best quality. while talking about hp pavilion dv4 1503tu penetrate the length and the breath of the country. the quality material used by hp is of good quality in every field more ever all the leading brand are on backfoot. when we talk about the hardisk, Ram( randam access memory) , ROM( read only memory) , CPU( central processing unit) (intel inside) and other coponents of hp is of good quality.