Technology has greatly impacted our lives in many ways. Basic home technologies like TV, computers, and phones allow people to stay informed about news and events and communicate with others. Without these technologies, people would be isolated from world events and unable to contact others in emergencies. Portable devices owned by most teens like cell phones and mp3 players also enable communication and help in emergencies. Cars and public transportation expand people's access to resources and attractions in other towns. Machines are used in hospitals, industries, homes, and schools to help people learn, receive medical care, and live their lives. The world relies on technology to support its population and future technological advances will continue making lives easier.