Learning Objectives Use and create electronic circuits Understand

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 1 Friday, December 24, 2021 Logic Gates And Boolean Expressions Vocabulary GCSE Computer Science – Logic Gates. Key & Boolean Variables, Repeat Statements, While Loop, Success Criteria © Teach. All. About. IT 2018 Expressions

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 2 Friday, December 24, 2021 NOT gates are the only gate that has a single input. They reverse the input: If 1 is passed in, then 0 is passed out If 0 is passed in, then 1 is passed out Draw a Truth Table for a NOT gate. Input Output 1 0 0 1 Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Logic Gates © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 3 Friday, December 24, 2021 AND gates have two inputs and a single input. They only output true if BOTH inputs are true In the case of logic gates, 1 = True and 0 = False Draw a Truth Table for an AND gate. Input A Input B Output 1 1 0 0 0 1 0 0 Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Logic Gates © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 4 Friday, December 24, 2021 OR OR gates have two inputs and a single input. They output true if EITHER of the inputs are true Where have you seen OR used in your programmes? Draw a Truth Table for an OR gate. Input A Input B Output 1 1 0 0 0 Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Logic Gates © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 5 Friday, December 24, 2021 NAN D NAND gates are a combination of a NOT & an AND gate They output true if EITHER of the inputs are NOT True Notice the nose added to the AND gate symbol – that’s the nose from the NOT gate Draw a Truth Table for a NAND gate. Input A Input B Output 1 1 0 1 0 1 1 0 0 1 Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Logic Gates © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 6 Friday, December 24, 2021 NOR gates are a combination of a NOT & an OR gate They output true if BOTH of the inputs are False Notice the nose added to the OR gate symbol – that’s the nose from the NOT gate Draw a Truth Table for a NOR gate. Input A Input B Output 1 1 0 0 0 1 Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Logic Gates © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 7 Friday, December 24, 2021 XOR gates are a special gate known as Exclusive OR They output true if one input is True and the other is False In a Boolean Expression, these are written as ⊕ Draw a Truth Table for a XOR gate. Input A Input B Output 1 1 0 1 0 1 1 0 0 0 Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Logic Gates © Teach. All. About. IT 2018

Learning Objectives • • • Slide 8 Friday, December 24, 2021 Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Logic Gates © Teach. All. About. IT 2018

Learning Objectives • • • Slide 9 Friday, December 24, 2021 Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Logic Gates © Teach. All. About. IT 2018

Learning Objectives • • • Slide 10 Friday, December 24, 2021 Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Logic Gates © Teach. All. About. IT 2018

Learning Objectives • • • Slide 11 Friday, December 24, 2021 Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Logic Gates © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 12 Friday, December 24, 2021 NOT When showing a symbol with a NOT, we use a before the letter to represent the NOT gate. ¬ symbol Write a Boolean Equation for the following problem: P is true when A is not True P=¬A Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Boolean Equations © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 13 Friday, December 24, 2021 AND When showing a symbol with an AND, we use a ^ symbol to represent the AND gate. Write a Boolean Equation for the following problem: P is true when A is not True and B is True P=¬A^B Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Boolean Equations © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 14 Friday, December 24, 2021 OR When showing a symbol with an OR, we use a v symbol to represent the OR gate. Write a Boolean Equation for the following problem: P is true when A is not True and B is True, or C is not true P = (¬ ( A ^ B) v ¬ C Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Boolean Equations © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 15 Friday, December 24, 2021 NAN D Just like the NOT gate, we use a ¬ before the symbols, but the NAND gate draws the symbol before both inside brackets. Write a Boolean Equation for the following problem: P is true when A and B are not True, or C is true P = ¬(A ^ B) v C Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Boolean Equations © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 16 Friday, December 24, 2021 NOR Like the NAND gate, the NOR gate uses the ¬ symbol from the NOT in front of both symbols. Write a Boolean Equation for the following problem: P is true when A or B is not true, and C is true P = ¬(A v B) ^ C Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Boolean Equations © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 17 Friday, December 24, 2021 XOR As shown before, when we write an XOR in a Boolean Expression, we use the special symbol ⊕ - look closely and you’ll see that it uses an alternative for the OR symbol (+) and draws a circle around it to show it’s exclusive. Write a Boolean Equation for the following problem: P is true when A is not True and B is True, or B is not True and A is True P=A⊕B Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Boolean Equations © Teach. All. About. IT 2018

Learning Objectives • • • Slide 18 Friday, December 24, 2021 Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Exam Practice © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 19 Friday, December 24, 2021 Draw the circuit diagram that will represent the expression P = NOT (A AND B) Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Exam Practice © Teach. All. About. IT 2018

Learning Objectives • • • Slide 20 Friday, December 24, 2021 Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Exam Practice © Teach. All. About. IT 2018

Learning Objectives • • • Slide 21 Friday, December 24, 2021 Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Exam Practice © Teach. All. About. IT 2018

Learning Objectives • • • Slide 22 Friday, December 24, 2021 Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – Exam Practice © Teach. All. About. IT 2018

Learning Objectives • • • Use and create electronic circuits Understand define logical functions Draw truth tables from a given circuit Recognise logic gates from a given truth table Produce a logic circuit to solve a given problem Slide 23 Friday, December 24, 2021 More Help www. Teach. All. About. IT. uk @Teach. All. About. IT Key Vocabulary Variables, Repeat Statements, While Loop, Success Criteria GCSE Computer Science – More Help © Teach. All. About. IT 2018