
Adders and Half Adders CIE A2
Authored by Andrew Duckworth
Computers
12th Grade
Used 10+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A full adder has
2 inputs, 2 outputs
3 inputs, 2 outputs
2 inputs, 1 output
3 inputs, 1 output
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A half adder has
1 input and 1 output
2 inputs and 2 output
1 input and 2 outputs
2 inputs and 1 outputs
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many AND, OR and EXOR gates are required for the configuration of Full Adder?
4,0,1
2,1,2
3,1,2
1,2,2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If A and B are the inputs of a half adder, the carry is given by
A + B
A.B
A XOR B
A XNOR B
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which circuit can be constructed with one XOR and one AND gate?
Half Adder
Full Adder
Full Subtractor
Multiplexer
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of input P in the circuit shown here?
Sum
Carry Out
Carry In
Reset
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of output X in the circuit shown here?
Sum
Carry Out
Carry In
Reset
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