A microprocessor is an integrated circuit (IC) that contains a complete CPU on a single chip. In this lesson, we examine the microprocessor from its inception to the current state-of-the-art chip. It is important for a computer technician to understand the development of the processor and what makes each version different from its predecessors. This knowledge gives us an understanding of the enhancements each new design offers over earlier ones and how the system components can take advantage of the new features.
Fortunately, computer technicians aren't required to design microprocessors, only to understand how they work. Microprocessors can be viewed as little black boxes that provide answers or perform a variety of chores on command. We also need to understand the external data bus because it is the means by which the CPU accesses system resources.
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