Question 28Asked in DSSSB TGT Computer Science (Technical), 1 Aug 2021, Shift 1

Which of the following represents the borrow in a half subtraction?

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Correct answer: (C) A'B (A-bar B)

Explanation

A half subtractor computes A − B: difference = A ⊕ B and borrow = A'B, since a borrow is needed only when A = 0 and B = 1.

From DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 1

This is question 28 of DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 1. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.