This article is more for student rather than materials engineers with several years of career behind. Have you ever thought about using PC tools, which can help you with solving problems needed for schoolwork ? Imagine this objective: You want to examine metallographic section of ordinary cementite steel. Your teacher gives you photo with task to measure the number of cementite particles. As we all know the mechanical properties of such steel is dependent upon quantity of these particles. You can do it by hand or use some of available software tools. And I can think of milion tasks like this one.