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     The major areas in software that played important role is the Operating System because it is designed to run the application programs and also Operating system manages such as software resource, computer hardware and also provides a common services in computer program. Operating System also manage a computer's memory, processes and all of it's software and hardware. It also coordinates all of this to make sure each program gets what it needs. Modern operating systems use a graphical user interface, or GUI  a GUI lets you use your mouse to click icons, buttons, and menus, and everything is clearly displayed on the screen using a combination of graphics and text. The one of the Important in OS is Software Updates because the OS make sure that your application version is latest so that the application have a new feature also by updating the software your software become fast to use and it less a bug.  

    The Difference between Computer Science and Software Engineering is Computer Science is focuses in data, data transformation and algorithm while Software Engineering applies a more systematic practices to help ensure that the products are safe and reliable. Computer science deals with the science behind the interaction between hardware and software systems and computational applications, whereas software engineering typically deals with the engineering principles of building, designing and testing software products. Another difference between computer science and software engineering is the application of software programming and development. Computer science will focus on computing and calculating the best ways to program software as well as finding calculations that allow engineers and developers to build software programs that meet product requirements. Software engineers essentially use the analysis and outlines from computer scientists to aid in the full development and construction of new frameworks and software programs

     One of the Software Crisis is Lack of domain knowledgeit means  developers are not experts in the business domain served by their applications, be it telecommunications, banking, energy, supply chain, retail, or others. Second is Lack of technology knowledge Most developers are proficient in several computer languages and technologies. However, modern multi-tier business applications are a complex tangle of many computer languages and different software platforms. These tiers include user interface, business logic, and data management, and they may interact through middleware with enterprise resource systems and legacy applications written in archaic languages.