Involvement of the lung causes shortness of breath or fatigue during physical activity. Many patients with scleroderma become less physically active because of musculoskeletal complaints or the fatiguing nature of the illness. Hence many will not be physically active enough to actually develop shortness of breath.
Computer hardware engineers research, design, develop, and test computer systems and components such as processors, circuit boards, memory devices, networks, and routers. These engineers discover new directions in computer hardware, which generate rapid advances in computer technology.
Although their work emphasizes applying theory, computer engineers often use Computer Aided Design (CAD) and testing to produce and analyze designs for computer chips, circuit boards, and other components. BLS projects that computer engineers will grow faster than any other occupation between 1998 and 2008. Employment of computer engineers is expected to increase as businesses and other organizations continue to integrate new technologies and streamline their computer systems. Demand for computer engineers will increase as computer networking continues to grow.