31. The range of an 8-bit two’s complement word is from:
(a) +12810 to –12810
(b) –12810 to +12710
(c) +12810 to –12710
(d) +12710 to –12710
32. Binary subtraction of a decimal 15 from 43 will utilize which two’s complement?
(a) 101011
(b) 110000
(c) 011100
(d) 110001
33. 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
34. Convert the binary number 1011010 to hexadecimal.
(a) 5B
(b) 5F
(c) 5A
(d) 5C
35. Sample-and-hold circuits in ADCs are designed to:
(a) sample and hold the output of the binary counter during the conversion process
(b) stabilize the ADCs threshold voltage during the conversion process
(c) stabilize the input analog signal during the conversion process
(d) sample and hold the ADC staircase waveform during the conversion process
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