Sony Corporation (Sony) is the ultimate parent company of the Sony Group. The Company is primarily focused on Electronics, such as audiovisual/ information technology products & components; Game, such as PlayStation; Entertainment, such as motion pictures and music, and Financial Services, such as insurance and banking sectors. It has five segments: Electronics, Games, Pictures, Financial Services and All Other. In the Electronics segment, it develops, designs, manufactures and sells various kinds of electronic equipment, instruments and devices for consumer and professional markets. In the Games segment, Sony Computer Entertainment Inc. (SCEI) develops, produces, markets and distributes PlayStation Portable (PSP), PlayStation 2 and the PLAYSTATION 3 computer entertainment systems. In the Entertainment segment, operations encompass motion picture, television and home entertainment production, acquisition and distribution; television broadcasting, and digital content creation. 

Quelle: google finance