8. The 2's complement of 10002 is
A.111
B.101
C.1000
D.1
9. The chief reason why digital computers use complemental subtraction is that it
A. simplifies their circuitry
B. is a very simple process
C. can handle negative numbers easily
D. avoid direct subtraction
10. The binary division 110002 + 1002 gives
A.110
B.1100
C.( c) 11
D.101
11. The number 128 is equivalent to decimal
A.12
B.20
C.10
D.4
12. The number 1001012 is equivalent to octal
A.54
B.45
C.37
D.25
13. The number 178 is equivalent to binary
A.111
B.110
C.10000
D.1111
14. Which of the following is NOT an octal number?
A.19
B.77
C.15
D.101
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