Computing Binary Logic.

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Presentation transcript:

Computing Binary Logic

Today’s Objectives What am I going to learn today? You’re going to learn this Be able to produce truth tables for a logic diagram Learning Tools - How am I going to learn it? You’re going to do this Complete your logic gates truth table challenge

Re-Cap on Last Lesson Last lesson you learnt to… Be able to recognise binary Be able to convert denary numbers into binary numbers Be able to convert characters into binary numbers You need to remember that Computers only work in 1’s and 0’s. These can also be thought of as ON/OFF or TRUE/FALSE.

Independent Challenge You’re learning this Looking at the diagrams and results in the truth tables that go with them what do you think the names of these diagrams could be? Be able to produce truth tables for a logic diagram HINT: Think about the results you can see when either the 1 or the 0 binary value is entered By doing this Complete your logic gates truth table challenge

A P 1 Logic Gates – NOT The NOT gate You’re learning this The NOT gate Be able to produce truth tables for a logic diagram Input A Output P All gates have an input and an output By doing this A P 1 Complete your logic gates truth table challenge Truth table to see results

This gate has two inputs and an output A B P Logic Gates – AND You’re learning this The AND gate Be able to produce truth tables for a logic diagram Input A Output P Input B This gate has two inputs and an output By doing this A B P 1 Truth table to see results Complete your logic gates truth table challenge Everything zero unless both 1’s

This gate has two inputs and an output A B P Logic Gates – OR You’re learning this The OR gate Be able to produce truth tables for a logic diagram Input A Output P Input B This gate has two inputs and an output By doing this A B P 1 Truth table to see results Complete your logic gates truth table challenge If there is a 1 the output is a 1

Working out multiple truth tables You’re learning this Input A Output P Input B Output C Be able to produce truth tables for a logic diagram AND Gate NOT gate A B C P Think for 2 minutes about this before we complete as a class. By doing this Complete your logic gates truth table challenge HINT: Output C becomes the input for the NOT gate

The Logic Challenge Your challenge You’re learning this Your challenge Be able to produce truth tables for a logic diagram HINT: Use the diagram and truth table sheet from the independent challenge or the class task we just complete to help. By doing this Complete your logic gates truth table challenge You need to complete the challenge grid by working out the truth tables for each logic diagram