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Digital Arithmetic Operations and Circuits
What is one disadvantage of the ripple-carry adder?
The interconnections are more complex.
More stages are required to a full adder.
It is slow due to propagation time.
All of the above.
Correct Answer:
It is slow due to propagation time.
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Digital Arithmetic Operations and Circuits
When 1100010 is divided by 0101, what is the decimal remainder?
It is not necessary to have the same number of bits when adding or subtracting signed binary numbers in the 2's-complement system.
The binary subtraction 0 – 1 = is difference = 1 borrow = 0
The look-ahead-carry adder is slower than the ripple-carry adder because it requires additional logic circuits.
There are four possible combinations for subtracting two binary numbers.
The 74LS382 ALU is a 24-pin arithmetic/logic unit.
Overflow indicators in ALU circuits indicate when add or subtract operations produce results that are too large to fit into four bits.
A binary sum is made up of only 1s and 0s.
Full adders can add two numbers and need not have a carry input or a carry output.
ALU circuits cannot be cascaded to perform functions on more than four bits.
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