Concepts of Computer Science and Programming: OOP and others

As many much smarter than I have said first, Computer Science is a very inadequate term for the concept it describes. Firstly, it is not a science: it is a little of engineering, math, and even art. Secondly, it may or may not have to do with computers. Computer science is the structured expression of declarative knowledge. It is a form of putting into existence things we know to be true. It is a declaration …

…an entrance point into a whole society of modules, classes, and structures. In this web, the interacting modules are known as objects, each of which contains an independent state and data which is completely isolated from all other objects by default. OOP brings along a concept of abstraction: that idea of separate creatures called objects reach representing some kind of problem or concept, with its own channels of communication with the rest of the world.