2.) On a windy day, the same logic applies. The wind passing over an open, unobstructed hole in the roof would result in lower pressure outside the roof hole. Air inside the attic would move to lower pressure through the hole. With a turbine, the wind spins the turbine fan but that does not result in lower pressure.
Computer engineering or Computer Science engineering integrates several disciplines such as Information Technology, Electrical and Electronics Engineering, Software Design, etc. The engineers are mainly involved in the development of software and hardware systems of various aspects of computing.
Computer engineering and computer science have a lot of overlapping characteristics, but the major difference is found in how the obtained skills are used. While computer engineering focuses more on hardware and electronics, computer science focuses on computer programming and software design. Both areas involve the study of advanced mathematics, physics and programming, but computer engineers are more likely to use those skills to build hardware than to build programs.