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.
Software engineers should also understand the basic principles of the industry in which they're employed. For instance, a software engineer working for a bank should understand finance, so they can better serve the bank's computing needs. The median salary of a computer software engineer is more than $87,000 a year.