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

This preview shows pages 1–3. Sign up to view the full content.

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

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

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...
View Full Document

{[ snackBarMessage ]}

### Page1 / 3

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

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online