CHAPTER 1 WELCOME TO THE FUTURE A girl stands in the middle of a bustling city She is on her way to visit her grandpa She does not know how to get to his new apartment But that’s not a problem The girl is in Singapore This small country is a city-state island in Southeast Asia Singapore is filled with many devices Some help people travel The airport in Singapore uses touch screens to help travelers check in 5
Others help people stay healthy Each device has its own job For example a touch screen near the girl shows a map of the city The screen helps her plan her travel It even tells her when the right bus will come The bus takes the girl to her grandpa’s apartment The apartment is filled with sensors Some sensors track her grandpa’s movement They send information to a smart system If he falls the system will call for help Other sensors track how much water and electricity he uses They measure how much trash he throws away This information goes to a smart system that helps reduce waste 6
Smart systems can send information about power usage to a person’s smartphone Code makes all these smart systems possible Code is a set of instructions that tell a computer or device what to do In a smart system code helps each device send and receive information People continue to create new ways to use code They work to make life safer and more comfortable 7
