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41. Convert 1000 0000 0000 1111 signed binary number to decimal number.
A. +15
B. -15
C. -30
D. +30
E. None of the above
42. The _____ is a sequence of instructions that tells the computer how to process the data.
A. data
B. program
C. controls
D. instruction
E. None of the above
43. The output of the following gate is 1 only if at least one of its inputs is 0.
A. AND gate
B. OR gate
C. NAND gate
D. NOR gate
E. None of the above
44. The highest decimal number that can be represented with 10 binary digits is
A. 1023
B. 1024
C. 512
D. All of the above
E. None of the above
45. The clock signals are used in sequential logic circuits
A. to tell the time of the day
B. to tell how much time has elapsed since the system was turned on
C. to carry serial data signals
D. to synchronize events in various parts of a system
E. None of the above
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