Use Computer to solve problems step by step!!!
Computer Science is the study of problems, problem-solving, and the solutions that come out of the problem-solving process.
Programming is the process of taking an algorithm and encoding it into a notaion, a programming language, so that it can be executed by a computer.
All data items in the computer are represented as a strings of binary digits. In order to give these strings meaning, we need to have data types.
An abstract data type, sometimes abbreviated ADT, is a logical description of how we view the data and the operations that are allowed without regard to how they will be implemented.
There are often many ways to solve a problem. Finding a solution and then deciding whether it is a good one are tasks that we will do over and over again.
原文：http://www.cnblogs.com/elewei/p/5621493.html