Chapter 4 Exercises and Answersfull

Chapter 4 Exercises and Answersfull - (representing 0). If...

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Chap 4 Chap 4 40. Give the three representations of a NAND gate and say in words what NAND means. A and B are the input signals and X is the output signal. Boolean expression: (A . B)’ (NOT (A AND B)) Logic Diagram: Boolean Expression Logic Diagram Symbol Truth Table A X X = (A · B)' B A B X 0 0 1 0 1 1 1 0 1 1 1 0 If the inputs are different or both 0, NAND returns a 1; if both are 1, it returns a 0. 49. What are the three terminals in a transistor, and how do they operate? The source is an electric signal. The base value regulates a gate that determines whether the connection between the source and the ground (emitter) is made. An output line is usually connected to the source. If the base value is high, the source is grounded and the output is low
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Unformatted text preview: (representing 0). If the base value is low, the gate is closed and the source is not grounded and the output is high (representing 1). 55. Draw a circuit diagram corresponding to the following Boolean expression: (A + B)(B + C) A B C 57. Draw a circuit diagram corresponding to the following Boolean expression: A9B + (B+C)9 A C B 59. Show the behavior of the following circuit with a truth table: A B Truth Table A B AB A+B AB + (A+B) 0 0 0 0 0 0 0 1 1 1 0 1 0 1 1 0 1 1 1 1 1 0 0 1 1 1 0 1 1 1 1 1 0 1 1 1 1 1 1 1 62. Show the behavior of the following circuit with a truth table: Truth Table A B C AB 0 0 0 0 1 1 0 1 0 0 1 0 1 0 1 1 0 1 0 0 1 1 0 1 0 1 1 0 0 0 1 1 1 0 0 0 1 1 0 1 1 0 1 0 1 0 1 1 1 1 0 1 1 1 0 1 1 1 1 1 0 0 0 0...
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Chapter 4 Exercises and Answersfull - (representing 0). If...

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