Digital Computer Electronics – Section 5

16. Binary-Coded-decimal (BCD) numbers express each digit as a _____

A. byte
B. nibble
C. bit
D. All of the above
E. None of the above

Correct Answer:  B. nibble

17. Computers use thousands of flip-flops. To coordinate the overall action, a common signal called the _____ is sent to each flip-flop.

A. latch
B. clock
C. master
D. slave
E. None of the above

Correct Answer:  B. clock

18. Conversion of decimal number 9310 to hexadecimal number is

A. 2D16
B. 5D16
C. 6216
D. 3116
E. None of the above

Correct Answer:  B. 5D16

19. Conversion of decimal number 9910 to it’s octal number equivalent is

A. 1218
B. 1438
C. 1248
D. 1198
E. None of the above

Correct Answer:  B. 1438

20. The 2’s complement of binary number 0.01011 is:

A. 1.10101
B. 0.10101
C. 1.10100
D. 0.10100
E. None of the above

Correct Answer:  A. 1.10101

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