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Pt1420 Unit 6 Study Guide

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Learning Activity- 2.2- Construction of Logic gates- [Estimated Time 30 minutes] In this activity, you are to construct and give a logic circuit diagram for each of the following;You may wish to start by constructing truth tables for each first. Construct a logic circuit for the input below (A + B)C Solution 2.Construct a logic circuit for the input below SOLUTION 3. Construct a logic circuit for the input below SOLUTION 4. Construct a logic circuit for the input below SOLUTION Learning Activity 2.3- construction of truth tables [ Estimated time 30 minutes] Consider the following statements. Let X represent the statement “Peter ordered codfish,” and let Y represent the statement “Peter ordered ice cream.” Take it that ∼Ymeans John did not …show more content…

Draw and equivalent truth table. ∼ X Answer: the yard is not small ∼X ⋀ Y Answer:The yard is not small same as the the house X ⋀ Y Answer: the yard is small and the house is small. Unit Summary The unit has exposed you to the basics of numbering systems, use of decimal, octal, binary and hexadecimal number system. The computer understands only binary number and that all other number systems are to be converted into the binary number systems. The techniques of conversion have been covered. The boolean algebra is the basis of logic circuits. The truth tables are constructed based on the values of the input variables in the boolean expressions. You can now identify, describe and analyze the gate symbols for the Boolean operations AND, OR, NOT and XOR. Unit Assessment Use 2’s Complete to evaluate the following 01112 – 10002 Subtract 4 from 12 The output of an AND gate with three inputs, A, B, and C, is HIGH .What are the

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2. Sometimes a very complex set of gates can be simplified to save on cost and make faster circuits. A way to do that is through boolean identities. Boolean identities are quick rules that allow you to simplify boolean expressions. To implement these identities, Boolean algebra is used.

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