What is Data Parsing?

While I was struggling to build my python code for automatic login system, I had seen the word 'data parsing' many times.
What the hell is 'data parsing' and why we need to parse data?

• Definition
 Breaking data into smaller parts so that it can be more easily interpreted.


• My understanding
 Reorganizing given data to more structured form so that we can use data more easily. 

Aha! Parsing data helps me to understand data structure and use them more easily! 
The next step is parsing HTML with Python



*Images will be added soon to help understanding.