In his book A History of Modern Computing, Paul Ceruzzi states that “computers were invented to “compute”: to solve “complex mathematical problems,” as the dictionary still defines that word. They still do that, but that is not why we are living in an “Information Age.” That reflects other things that computers do: store and retrieve data, manage networks of communications, process text, generate and manipulate images and sounds, fly air and space craft, and so on. (Ceruzzi 1).” However, early electronic computers were designed basically to solve equations. The scope of how far computers would reach into our everyday lives was something that was only dreamed about in early science fiction novels.

Our textbook defines an operating system as “a program that manages the computer hardware. It also provides a basis for application programs and acts as an intermediary between a user of a computer and the computer hardware” (Silberschatz 3). However, this definition does not begin to describe how varied an operating system can be. We have operating systems that ar

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