Virtual Labs

What is the major difference between half-adders and full-adders

a: Full-adders are made up of two half-adders Explanation

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b: Full adders can handle double-digit numbers Explanation

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c: Full adders have a carry input capability Explanation

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d: Half adders can handle only single-digit numbers Explanation

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Which of the following is correct for full adders?

a: Full adders have the capability of directly adding decimal numbers Explanation

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b: Full adders are used to make half adders Explanation

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c: Full adders are limited to two inputs since there are only two binary digits Explanation

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d: In a parallel full adder, the first stage may be a half adder Explanation

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What are carry generate combinations?

a: If all the input are same then a carry is generated Explanation

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b: If all of the output are independent of the inputs Explanation

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c: If all of the input are dependent on the output Explanation

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d: If all of the output are dependent on the input Explanation

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What is ripple carry adder?

a: The carry output of the lower order stage is connected to the carry input of the next higher order stage Explanation

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b: The carry input of the lower order stage is connected to the carry output of the next higher order stage Explanation

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c: The carry output of the higher order stage is connected to the carry input of the next lower order stage Explanation

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d: The carry input of the higher order stage is connected to the carry output of the lower order stage Explanation

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Serial and Parallel Adders