plans are being developed to control air pollution. Burning cleaner fuel and burning fuel more efficiently both help the environment. Pollution controls devices for cars have also been developed. For example, catalytic systems were installed in many car exhaust systems in the 1980s. These devices change dangerous gases into harmless carbon dioxide and water. They also burn up much of the exhaust with fresh air in a chamber near the exhaust pipe. The car of the future will need new designs which make even better use of the fuel which powers them.Cars influence the ways communities are developing. Since it is possible to drive great distances rapidly, many people choose to live far away from where they work. Many cities have a downtown core where people work and a suburban area where they live. People may spend a great deal of time commuting through rush hour traffic.In spite of many problems , it is hard to imagine a society without cars. Cars and trucks have become so important that most people would not want to do without them. They would prefer to see the design and construction of cars changed to accommodate safety and environment concerns. The car has helped created jobs, freedom, convenience and fun as well as pollution, traffic jams and urban sprawl. The challenge facing the auto industry is to keep pace with the changing values of society and to develop the technology to do so.Computerization: Extraordinary TechnologyComputers are used in most manufacturing industries today. Computers are used to automate processes in much faster ways . These can be office procedures such as word processing or bookkeeping, or production processes such as cutting and assembling clothes.Computers are becoming an important part of industrial design. Computer-aided design (CAD) and computer-aided manufacturing (CAM) are new terms which describe the important role computers have come to play in our industry. The wide use to computers has stimulated co...