What Is the best programming language to start learning to understand the basics of programming?

Answer 1

scratch is a drag and drop interface
developed to enable beginners to easily grasp programming concepts.
https://scratch.mit.edu
To start coding, the Processing IDE is based on a simplified version of java and is developed with focus towards beginners/non pro-coders.
Learning processing you are basically learning java and the programming concepts that apply to more or less every language.
https://processing.org

Answer 2

C (The father of all languages) :)
or
Python (Easiest to Learn)

Answer 3

in my opinion for many reasons, C.