Lec9_HW-SW

Lec9_HW-SW - ISOM 101: Introduction to Information Systems...

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ISOM 101: Introduction to Information Systems Lecture 9: Technical Foundations Prof. Heather H. Xu
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Project proposal due
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Web 2.0 Module #2 Fundamentals of IS 1. Components of IS 2. hardware/software/network 3. The Internet Technical Foundations Internet/WWW Network Technologies
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Objectives What are the major components of modern PCs? How are these components related to each other? What are their respective functions? Output, Input, CPU, Primary/Secondary Storage What are the major types of software? How should a company decide whether to develop the software (in house), purchase off-the-shelf, or adopt open-source?
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History of Computers ENIAC ( Electronic Numerical Integrator And Computer ) • Introduced in 1946 • World War II • Designed to calculate artillery firing tables for the US Army • “Giant Brain” • 27 tons • 63 m 2 • Used vacuum tubes • Amplify and switch electrical signals • Ancestor to transistors
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History of Computers ENIAC during World War II 1960s introduced transistors to replace tubes 1970s introduction of the microprocessor
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Faster, Smaller, Cheaper
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The Rise of Personal Computer –1 st PC 1975: Altair 8800 • Sold by mail order through magazine advertisements • Targeted hobbyists • Gained unexpected popularity
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Apple is one type of PC Steve Wozniak, Steve Jobs • Apple I Steve Jobs Steve Wozniak
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The Future From the Past 1987 by John Sculley • Apple’s former CEO
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The Future From the Past Knowledge Navigation • Figures • Calendar • Voice recognition • Text-speech • Map • Data collection • Touch screen • Search
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Now, let’s look at MODERN computers. ..
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Core Computer Components
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Core Computer Components Output devices Input devices Central processing unit (CPU) Primary storage Secondary storage Buses
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Output Devices Monitors • Cathode Ray Tube (CRTs) • Liquid Crystal Displays (LCDs)
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Lec9_HW-SW - ISOM 101: Introduction to Information Systems...

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