It's simple dude. Do your business related to computers. There are many computer fields such as Graphics, Animations, Video Editing, Web development, Windows Application development much more. MBA is not too Mandatory for doing business. Nowadays there are many courses and certifications for entrepreneurship qualities.

Dear

According to your query and interest you should watch Shark tank and Vault online series for Entrepreneurship skills and even you can watch Ted talk for getting the knowledge about entrepreneurship .

Even you can watch Entrepreneurship movie like The social network or wall Street

All the Best

You are not able to separate Computers and Business  these days. Computers now occupy all segments of Society. You may have to learn both.

You can go for Engineering in Computer science or BSc IT, following by MBA in Systems so you have both technical and management knowledge for starting your own venture.