What is Computer? Why Do We Need Programmer?

Here is a sentence that can easily explain what computer is

Computer= Power+ Stupid

You may wonder why computer are stupid. The truth is, they can only do instructions and operations with your commands. Those mechanical works are very easy for them. In this case, we need programmer. 

Programmer are bunch of people who are good at communicate with computer. They are creative and know how computer work. So what they do is to think of some works they want computer to run and put them into orders of codes, so the computer will be able to understand them. 

Base on those codes, computer will finish the calculating work that human can hardly use their brain to do. 

See this image? this is a example of computer system doing instructions. Your computer are doing billions of these per second when you are using your computer to play Facebook or doing something else