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IEE-Lec6 Binary Counter

# IEE-Lec6 Binary Counter - Lecture 6 Binary Counter Thinking...

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2/18/2004 Introduction to Engineering Electronics STOLEN FROM K. A. Connor 1 Lecture 6 Binary Counter Thinking Digitally

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2/18/2004 Introduction to Engineering Electronics STOLEN FROM K. A. Connor 2 Henry Farny’s Song of the Talking Wire
2/18/2004 Introduction to Engineering Electronics STOLEN FROM K. A. Connor 3 2 Minute Quiz Name_______ Sec_______Date_______ Code Example: Code Example: Code Example: PWM Question:

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2/18/2004 Introduction to Engineering Electronics STOLEN FROM K. A. Connor 4 Joseph Henry & the Telegraph Albany Academy Experiment Assisted Morse at Princeton 1 st Head of Smithsonian Unit of inductance: Henry
2/18/2004 Introduction to Engineering Electronics STOLEN FROM K. A. Connor 5 Morse Code Simple sequences of short and long clicks to represent letters and numbers Easier to generate than sound Easier to distinguish than sound

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2/18/2004 Introduction to Engineering Electronics STOLEN FROM K. A. Connor 6 UPC Codes 0 = 3-2-1-1 1 = 2-2-2-1 2 = 2-1-2-2 3 = 1-4-1-1 4 = 1-1-3-2 5 = 1-2-3-1 6 = 1-1-1-4 7 = 1-3-1-2 8 = 1-2-1-3 9 = 3-1-1-2 Bars come in four widths 1-2-3-4 Start is 1-1-1 (black-white-black) The zero is 3-2-1-1 (space-bar-space-bar). The four is 1-1-3-2 (space-bar-space-bar). The three is 1-4-1-1 (space-bar-space-bar). The next three zeros are 3-2-1-1 (space-bar- space-bar). In the middle there is a standard 1-1-1-1-1 (space- bar-space-bar-space), which is important because it means the numbers on the right are optically inverted! The one is 2-2-2-1 (bar-space-bar-space). The stop character is a 1-1-1 (bar-space-bar).
2/18/2004 Introduction to Engineering Electronics STOLEN FROM K. A. Connor 7 Computer Number System Examples From Computer Science I 10110101110001011001110011110110 binary number 11 5 12 5 9 12 15 6 B 5 C 5 9 C

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IEE-Lec6 Binary Counter - Lecture 6 Binary Counter Thinking...

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