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Chapter 2 modified by rs

Chapter 2 modified by rs - Systems Architecture Sixth...

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Systems Architecture, Sixth Edition Chapter 2 Introduction To Systems Architecture, And modified by your instructor, the evil rs
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Systems Architecture, Sixth Edition In this chapter, you will learn: “Stuff”; some of this stuff is good stuff, some of this stuff is dumb stuff, other stuff you don’t care about, but I do! You will gain some but not a lot, and not as much as you need to know or learn But you will learn more about “Stuff”! 2 Chapter Objectives: That I have modified
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Systems Architecture, Sixth Edition I deleted this slide to prevent you from being confused and whatever Not to mention it was more boring than even usual for canned slides 3 Chapter Objectives (continued)
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Systems Architecture, Sixth Edition Describes structure, interaction, and technology of computer system components Capabilities of a computer Accept numeric inputs Perform computational functions Communicate results 4 Systems Architecture
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Systems Architecture, Sixth Edition Mechanical Early computers with limited capabilities Performed repetitive mathematical calculations Electronic Electrons used rather than gears and wheels Fast, accurate reliable Optical Light is the basis for computation Fast, accurate reliable 5 Automated Computation
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Systems Architecture, Sixth Edition Mechanical representation of a mathematical calculation Difference engine: Charles Babbage, 1821 Limitations and shortcomings Complex design and construction Wear, breakdown, and maintenance of parts Limits on operating speed 6 Mechanical Implementation
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Systems Architecture, Sixth Edition 7 Figure 2.1 Charles Babbage’s Difference Engine Courtesy of Science Museum/Science & Society Picture Library
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Systems Architecture, Sixth Edition Stores numerical values as magnetic charges or by positioning electrical switches Can convert physical movement into electrical signals, or vice versa World War II: impetus for change Faster and more reliable for complex calculations Easier to build than mechanical counterparts 8 Electronic Implementation
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Systems Architecture, Sixth Edition Harnesses energy of a moving photon Represents data as pulses of light stored directly or indirectly by materials that reflect or don’t reflect light Now common in computer networks that cover large distances 9 Optical Implementation
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Systems Architecture, Sixth Edition Quantum physics describes the behavior of matter at a subatomic level Rules differ from classical physics Qubit: any matter that stores data in multiple simultaneous quantum states More efficient than conventional computers Last years data shows them to be 10% more efficient as some tasks at a cost of 10 times more money. Do you think we will use them?
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