Understanding the use of logic gates

• The OR gate outputs TRUE if any input is TRUE.

  True
• The NAND gate inverts the output of an AND gate.


  True
• What are logic gates used to perform in digital circuits?

  Logical computations
• What input condition makes the XOR gate output TRUE?

  Exactly one input is TRUE
• Order the steps in determining the output of a logic gate.

  1️⃣ Identify the logic gate type

  2️⃣ Determine the inputs

  3️⃣ Apply the logical operation

  4️⃣ Find the output
• A NOT gate outputs TRUE if the input is FALSE.


  True
• Match the logic gate with its operation:

  AND ↔️ Outputs TRUE if all inputs are TRUE

  OR ↔️ Outputs TRUE if any input is TRUE

  NOT ↔️ Inverts the input

  XOR ↔️ Outputs TRUE if exactly one input is TRUE
• Match the logic gate with its function:

  XOR ↔️ Outputs TRUE if exactly one input is TRUE

  NAND ↔️ Outputs FALSE only if all inputs are TRUE

  NOR ↔️ Outputs TRUE only if all inputs are FALSE
• A NOT gate always outputs the opposite of its input.


  True
• A NOT gate outputs TRUE if the input is FALSE.

  True
• What are the two components for each logic gate described in the study material?

  Symbol and truth table
• What is the purpose of logic gates in digital circuits?

  Perform logical operations
• What is the output of a NOT gate if the input is TRUE?

  FALSE
• Which logic gate outputs TRUE only if all inputs are FALSE?

  NOR
• The OR gate outputs FALSE only if all inputs are FALSE.


  True
• The NAND gate outputs TRUE only if all inputs are TRUE.

  False
• Digital circuits use logic gates to perform logical operations
• An XOR gate outputs TRUE if exactly one input is TRUE
• Arrange the steps in describing the function of a logic gate:

  1️⃣ Identify the gate type

  2️⃣ Determine its logical operation

  3️⃣ Explain its output based on input conditions
• Arrange the steps to interpret a truth table for a logic gate:

  1️⃣ Identify the input and output columns

  2️⃣ Examine the possible input combinations

  3️⃣ Determine the corresponding output for each combination
• An AND gate outputs TRUE only if all inputs are TRUE
• An XOR gate outputs TRUE if exactly one input is TRUE
• The NAND gate outputs FALSE only if both inputs are TRUE
• What is the output of an AND gate when one input is TRUE and the other is FALSE?

  FALSE
• Logic gates are combined to create more complex digital circuits.


  True
• The AND gate outputs TRUE only if all inputs are TRUE
• The XOR gate outputs TRUE if exactly one input is TRUE
• Match the logic gate with its operation:

  AND ↔️ Outputs TRUE if all inputs are TRUE

  OR ↔️ Outputs TRUE if any input is TRUE

  NOT ↔️ Inverts the input

  XOR ↔️ Outputs TRUE if exactly one input is TRUE

  NAND ↔️ Inverts the AND output

  NOR ↔️ Inverts the OR output
• The NOT gate outputs TRUE only if the input is FALSE
• The NOR gate outputs TRUE only if all inputs are FALSE
• Under what condition does an AND gate output TRUE?

  All inputs are TRUE
• What type of gate inverts the OR output?

  NOR
• An OR gate outputs TRUE if any input is TRUE
• In the truth table of an AND gate, the output is FALSE if at least one input is FALSE
• What is the output of a NOT gate if the input is TRUE?

  FALSE
• A NOT gate inverts a TRUE input to FALSE.


  True
• Match the logic gate type with its function:

  AND ↔️ Outputs TRUE if all inputs are TRUE

  OR ↔️ Outputs TRUE if any input is TRUE

  NOT ↔️ Inverts the input

  XOR ↔️ Outputs TRUE if exactly one input is TRUE
• The OR gate outputs TRUE if at least one of its inputs is TRUE
• Arrange the following logic gates in order of decreasing output TRUE states when all possible input combinations are considered:

  1️⃣ OR

  2️⃣ XOR

  3️⃣ AND
• The NOR gate outputs TRUE only if all inputs are FALSE.

  True