a) Discuss the key components of a computer system, and how these components make it possible for computer users to effectively utilize computer system resources.   b) Compare and contrast the Windows operating system and the Unix/Linux operating system and briefly explain the features of each of these operating systems that makes it suitable for system programming.   c) Write a C/C++ program to create a file in a specified folder of the Windows file system, and write some text to the file.

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