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.
What is Computer Science? Computer science is a discipline that spans theory and practice. It requires thinking both in abstract terms and in concrete terms. The practical side of computing can be seen everywhere. Nowadays, practically everyone is a computer user, and many people are even computer programmers. Getting computers to do what you want them to do requires intensive hands-on experience.