Computers help us perform many different tasks. They allow us to read the news, watch videos, play games, write books, purchase goods and services, perform complex mathematical analyses, communicate with friends and family, and so much more. All of these tasks require the user to provide inputInput, such as clicking on a video to watch or typing the sentences that will be included in a book. In response, the computer generates output, such as printing a book, playing sounds, or displaying text and images on the screen.