Chapter_1(S) - Chapter1 TheBigPicture 1 ComputingSystems...

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    1 Chapter 1 The Big Picture
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    2 2 Computing systems are dynamic entities used to solve problems and interact with their environment. They consist of devices, programs, and data. Computing Systems
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    3 3 Hardware - The physical elements of a computing system (printer, circuit boards, wires, keyboard…). Software - The programs that provide the instructions for a computer to execute. Data - Information in a form a computer can use. Computing Systems
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    4 4 Communication Application Operating System Programming Hardware Information Layers of a Computing System
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    5 5 Abstraction - A mental model that removes complex details. This is a key concept. Abstraction will reappear throughout the course – be sure you understand it! Abstraction
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    6 6 Abacus (2400 BC) An early device to record numeric values. Blaise Pascal (1623-1662) Created a mechanical device to add, subtract, divide & multiply. Gottfried Wilhelm von Leibniz (1646-1716) Created a mechanical device to perform a ll four whole number operations. Joseph Jacquard Jacquard’s Loom (1801) , the punched card Early History of Computing
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    7 Early History of Computing Charles Babbage (1792-1871) Difference Engine, Analytical Engine
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