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14 - Past Paper Simulation -Boolean Logic(I) #2

 1. Name the gate (1 mark)
whatgate_question_1_pps_booleanLogic21.png

 2. Name the gate and explain what it does (2 marks)
whatgate_question_2_pps_booleanLogic2.png

 3. Name the gate and explain what would be output if A and B were both inputs of 1? (2 marks)
whatgate_question_3_pps_booleanLogic2.png

 4. State three possible advantages to having fewer gates in a complex logic circuit? (3 marks)

 5. What gate is this a truth table for? (1 mark)
whattruth_Table_question_4_pps_booleanLogic2.png

 6. Analyse the truth table below. Can you fill in the blanks for A and B? (2 mark)
Write your answer in the following format:
A = True
B = True
fill_in_the_blanks_PPS_intermediate_booleanLogic_2.png

 7. Look carefully at the boolean expression for Q. Can you fill in the blanks for the missing value (1 mark)
boolean_expression_fillintheblanks_pps_booleanlogic2.png

 8. One of the output values is incorrect. State the colour that contains the incorrect value (1 mark)
correct_boolean_logic_table_0_1_1_0.png

 9. State the expression for this particular logic circuit. State it in terms of X and use the words themselves (e.g. AND, OR, NOT) for the gate names in the expression. (1 mark)
state_the_expression_corresponding_to_circuit.png

 10. In this example we have started to fill in the outputs for the truth table. State which colour contains a value that is definitely incorrect (1 mark)
spot_the_wrong_colour_booleanLogic_pps_2.png

 11. Assume that Q = NOT A. If the input for A is 0, what is Q?

 12. If an OR gate receives two inputs of a 1 and 0, what would the output be? (1 mark)

 13. A____________ shows how a logic circuit's output responds to various combinations of the inputs, using logic 1 for true and logic 0 for false (1 mark)

 14. The world of electronics was initially dominated by analogue signals,that is, signals representing a continuous range of values. In _____ circuitry, however, there are only two states: on and off, also referred to as 1 and 0, respectively (1 mark)