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Word Count: 466
1The four major functions of an operating system are Managing programs Managing Memory Handling input and output User Interface Managing programs Managing programs is one of the functions that are most dramatic effect to the operating systems overall quality There are many different systems that are used for managing programs You have single tasking in which you can run only one program application at a time Multi-tasking in which in the normal operating system allows a single user to work with more than one program at a time Managing memory The second function of an operating system is managing memory The operating system gives each individual program a certain amount of memory this is called a partition If the memory becomes full then the operating system starts storing copies of the pages into files in the hard disk This is called a swap file Input and Output Input and output devices generate interrupts and sends signals that inform the operating system that something has occurred Some examples of input and output devices are monitors modems and sound cards User Interface The quality of the user interface is what makes or breaks the system This is the part of the operating system that interacts with the user Sometimes it is also referred to as the shell This is implying that the user interface is surrounding the operating system which is referred to as the kernel There are three different types of user interface These are command-line menu-driven and graphical interface 2 a How did Linus get the attention of so many people willing to volunteer their time to create Linux Linus commented that in order to get people to help you you need to have a program that is interesting not boring People want a challenge and if it will benefit them they will be more than happy to help b What is
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