Verify the full adder's Sum formula, S = A XOR B XOR Cin, for the specific case A=0, B=1, Cin=1.

Let's calculate step by step. First compute A XOR B = 0 XOR 1 = 1 (since the inputs differ). Then XOR that result with Cin: 1 XOR 1 = 0 (since these two now match). So the final Sum, S, equals 0. We can double-check this against ordinary binary addition: A=0, B=1, Cin=1 means we're computing 0+1+1 = 2 in decimal, which in binary is '10' -- two bits. The Sum output (the rightmost bit of '10') is indeed 0, with the Carry-out (the other bit) equal to 1, confirming our XOR-based calculation of S=0 is correct.

Preparing your Quizst experience

Computer Science :: Computer Fundamentals :: Combinational Circuits (Adders)

Quiz 2 · Question 13 of 15

Practice this set

hardImportantQuiz 2

Back to list

Frequently asked questions

What does this quiz question cover?+

This free Computer Science Computer Fundamentals Combinational Circuits (Adders) question is part of Quiz 2. It is for focused practice, not a past paper.

How do I see the correct answer?+

Click an option to reveal the solution, or use Reveal solution. The answer and explanation then appear under the options.

Can I practise the full set?+

Yes. Use Practice this set to attempt Quiz 2 without seeing answers. After you finish, Quizst scores the set and shows solutions.

Where can I find more questions like this?+

Use Previous and Next, the related Combinational Circuits (Adders) questions below, or go back to the question list for the rest of the set.

Computer Science :: Computer Fundamentals :: Combinational Circuits (Adders)

More questions from Combinational Circuits (Adders)

Frequently asked questions

Computer Science :: Computer Fundamentals :: Combinational Circuits (Adders)

More questions from Combinational Circuits (Adders)

Frequently asked questions