1
GATE CSE 1997
MCQ (Single Correct Answer)
+1
-0.3
An $$N$$-bit carry look ahead adder, where $$N$$ is a multiple of $$4,$$ employs $${\rm I}cs$$ $$74181$$ ($$4$$bit $$ALU$$) and $$74182$$ ($$4$$ bit carry look ahead generator). The minimum addition time using the best architecture for this adder is
A
proportional to $$N$$
B
proportional to log $$N$$
C
a constant
D
None of the above
2
GATE CSE 1996
MCQ (Single Correct Answer)
+1
-0.3
Both’s algorithm for integer multiplication gives worst performance when the multiplier pattern is
A
$$101010 ....1010$$
B
$$100000 .....0001$$
C
$$111111 ......1111$$
D
$$011111 .....1110$$
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