Turbo C and Basic computer languages help to create a very interesting software, simulating oncological, fluid mechanics and education models. In this book author presents the developed using these computer languages useful software programs for Oncology: Medical Office , Medical Commander , Prognosis , for Fluid Mechanics: Models of bubbles behavior under different influences in different g-factor conditions and for Education: Document Commander and Examiner . The developed software products successfully passed practical tests and can be used in real practice.