Exercise: Arithmetic Operations And Circuits

Questions for: Arithmetic Operations And Circuits

In binary number systems the sign of a number is indicated by _________.
A:
using a 0 (zero) bit in front of negative numbers
B:
inverting the bits if the number is negative
C:
including a sign bit along with the magnitude bits
D:
placing a negative sign in front of the number
Answer: C
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An input to the mode pin of an arithmetic-logic unit (ALU) determines if the function will be _________.
A:
one's complemented
B:
positive or negative
C:
with or without carry
D:
arithmetic or logic
Answer: D
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Two 4-bit adders could be cascaded to form a(n) ___________.
A:
16-bit parallel-adder circuit
B:
8-bit parallel-adder circuit
C:
full-adder circuit
D:
arithmetic-logic unit
Answer: B
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The bits of a number that tell how large the number is are called ____________________.
A:
carry bits
B:
magnitude bits
C:
sign bits
D:
most significant bits
Answer: B
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A full adder adds ____.
A:
two 2-bit binary numbers
B:
two 4-bit binary numbers
C:
two single bits and one carry bit
D:
two 2-bit numbers and one carry bit
Answer: C
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