# Computer Science - Digital Computer Electronics

### Exercise :: 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

Explanation:

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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

Explanation:

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18.

Conversion of decimal number 9310 to hexadecimal number is

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

Explanation:

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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

Explanation:

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20.

The 2's compliment of binary number 0.01011 is:

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