I'm sorry but this is so fucking stupid to say (Sorry mods) but this is stupid to even make a comment like this. Sony isn't just about PlayStation in general, they venture out to other industries and even offer parts to other companies giving them revenue, for example, they do movies/tv, music, camera technologies, TV sets and so many more. That's like saying that Microsoft is just Xbox and Windows only when they offer services in other industries like the government sector, private sector, the health sector, the CRM industry and so many more, that's like also saying Amazon is just for the books when they offer so much more. I can go on forever but rather not cause I'm lazy.
To make your brain understand in reality Sony has more industries that they take part in than Microsoft even if Microsoft is worth more in revenue they get a year.
Here to help you understand what Sony does in general, this website from Sony will help you understand.
Learn more about the principal operating companies for Sony in the U.S.
www.sony.com