How to use split screen in computer

- How to split screen in computer
- How to do split screen in computer
- How to make split screen in computer
- How to split screen in apple computer
- How to split screen in computer windows 7
- How to split screen in computer with keyboard
- How to open split screen in computer
- How to put split screen in computer
- How to split screen in hp computer
- How to split screen in dell computer