They identify a gap within the existing apps they usually attempt to create a working product to make individuals’s lives higher. Other programming languages used to develop web servers are PHP, Ruby, C#, and Java. List of Python key phrases.Every programming language has its own set of keywords . These key phrases are part of the syntax and core functionality of the programming language. Now that you realize what programming is and what programming languages are all about, let’s have a glance at how programming is related to binary numbers. Every programming language has its personal set of rules that determine if a line of code is legitimate or not.