Simplify the following text for a Grade 9 native English-speaking person.
Original: Service Pack 3 contains updates to the operating system components of Windows XP Media Center Edition ( MCE ) and Windows XP Tablet PC Edition , and security updates for .
Simplified: In addition , Windows XP Media Center Edition is for people who edit videos and pictures a lot . Another special version of XP is called the Tablet PC Edition , for pen-based laptops .