Combinational vs Sequential Circuits
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Questions and Answers

Which type of logic circuit depends on its current and previous states?

  • Sequential circuit (correct)
  • Logic circuit
  • Combinational circuit
  • Digital circuit

What are the voltage levels used in a digital logic circuit?

  • Only positive values
  • Only 0 and 1 (correct)
  • Only negative values
  • Infinite number of values

What are combinational circuits used for?

  • Storing data
  • Switching voltage levels
  • Operating logic rules
  • Generating output based on current inputs (correct)

What are flip-flops used for in sequential circuits?

<p>Storing data (B)</p> Signup and view all the answers

What are digital logic circuits used in?

<p>Mobile phones, calculators, computers, etc. (C)</p> Signup and view all the answers

Which logic gates are used in a half adder circuit?

<p>EX-OR gate and AND gate (B)</p> Signup and view all the answers

Which logic gates are used in a full adder circuit?

<p>EX-OR gate and AND gate (D)</p> Signup and view all the answers

What does the output obtained from the EX-OR gate represent in a half adder circuit?

<p>The sum of the two numbers (D)</p> Signup and view all the answers

What does the output obtained from the AND gate represent in a half adder circuit?

<p>The carry (A)</p> Signup and view all the answers

What does a full adder circuit add?

<p>Three inputs (B)</p> Signup and view all the answers

Flashcards

Sequential circuit

A logic circuit whose output depends on both current and previous inputs.

Digital Logic Circuit Voltage Levels

Digital circuits use only two voltage levels: 0 and 1.

Combinational circuit function

Produces output based solely on current input values.

Flip-flop purpose

Stores data in sequential circuits.

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Logic gates (half adder)

EX-OR and AND gates are used.

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Logic gates (full adder)

EX-OR and AND gates are combined.

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Half Adder output (EX-OR)

Represents the sum of two numbers in the adder.

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Half Adder output (AND)

Represents the carry in the adder circuit

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Full Adder input

Combines 3 inputs to get a sum and a carry.

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Digital circuits applications

Used in mobile phones, calculators, and computers.

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