Start a list of all the ways computers affect your life. You will soon see that we can’t do without computers!
In schools, computers store students’ grades, keep track of books in the library, create class lists, and do the work of textbooks. In some homes, computers control heat, light, air‑conditioning, cameras, windows, and doors. In factories, computers run machines that make everything from airplanes to zippers. In hospitals, they scan brains and find tumors. Computers run telephones, cars, trains, and planes.
