Abstraction: It is simply hiding the complexity.as such that we never think computer as a set of transistors and chips but we think it as system consists of CPU,Monitor,Keyboard etc, this makes the user task simple. Encpsulation: This binds the code and the data it manipulates
If you haven't already done so, let me suggest a quick search on this forum for these two topics. I know I've seen a few good explanations in the past. Note that the search page link is at the top-right of this page.