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CS1 - Workbook (Student).pptx

24. Mar 2023
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CS1 - Workbook (Student).pptx

  1. GCSE Computer Science (9-1) Block1: Understandingthemachine CS1: BooleanLogic Name:………………………………......... Class: ……………… Date: ……………..... Name:………………………………......... Class: ……………… Date: …………….....
  2. 2
  3. Logic gates 3 Diagram Gate Notation Boolean expression Truth table representation A B Q A B Q A Y
  4. Truth tables 4 A B C X A B C X 0 0 0 0 0 1 0 1 1 0 1 0 1 1 0 1 0 1 1 0 0 0 1 1 1 Write the Boolean expression for this logic circuit. Complete the rest of the truth table.
  5. Putting it into context… Task A: Create a circuit to make the internal light come on when a car door is opened. 5
  6. Putting it into context… Task B: Create a circuit to launch nuclear missiles only when two separate keys (A and B) are both turned to on at the same time. 6
  7. Putting it into context… Task C: A burglar alarm has 3 inputs - • A (the main on/off switch) • B (a door sensor) • C (a motion sensor). Once the alarm is set to ON, either sensor B or C can trigger the alarm 7
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