Introduction of the jobs that is deeply relevant to computers

Today many people works in IT business. But we know very few things about what they does. So I want to  introduce their work to you.



Programmer 
 "Programmer" is defined as a person who makes progrrams. They do 3 parts of work mainly: coding, debug, test. Coding is a work that write progaramms practically and Debug is to find bug in a progrram and remove it.