What is a phone's output on Keyboard

What is a phone's output on Keyboard 

If you are a Keyboard User then you may have seen "Phones's Output" on the back side of your keyboard. Almost every keyboard has this option and it's main purpose is to supply internal connection between your keyboard and computer. That hole can be use for connecting your keyboard with the audio interface and that's how you can record your keyboard on your computer. Most of the instruments being played using "Phone's Output" 

In a simple understanding: Keyboard "Phone's Output" is a connection hole for providing output to your computer or audio interface for audio recording.