20090908-GatesCircuits

20090908-GatesCircuits - CSE115: Introduction to Computer...

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Click to edit Master subtitle style 2/14/11 CSE115: Introduction to Computer Science I Dr. Carl Alphonce 219 Bell Hall alphonce@cse.buffalo.edu 11
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2/14/11 Announcements If this is your first class: print a syllabus from the course website hand in signature form next class Recitations start this week Cell phones off 22
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2/14/11 Today’s lessons A computer is a very simple machine. A computer manipulates voltages Gates are used to control voltage flow Circuits are combinations of gates A flip-flop is a circuit that remembers 33
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2/14/11 physical vs. logical perspectives Physical reality: Logical view: WIRE Carries a HIGH voltage or a LOW voltage WIRE Carries a 1 or a 0 44
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2/14/11 Idea 55
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2/14/11 Controlling flow 0 66
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2/14/11 Controlling flow 1 77
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2/14/11 Two in a row? 0 88
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2/14/11 Two in a row? 0 99
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2/14/11 Two in a row? 0 1010
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2/14/11 Two in a row? 1 1111
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AND gate For which input values is output 1? For which input values is output 0?
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This note was uploaded on 02/13/2011 for the course CSE 115 taught by Professor Decker during the Fall '08 term at SUNY Buffalo.

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20090908-GatesCircuits - CSE115: Introduction to Computer...

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