Digital Computer Electronics – Section 4

16. Conversion of an octal number 638 to its decimal number is

A. 5110
B. 6110
C. 5710
D. 5310
E. None of the above

Correct Answer:  A. 5110

17. Binary means _____

A. Three
B. Four
C. Ten
D. Two
E. None of the above

Correct Answer:  D. Two

18. For an input pulse train of clock period T, the delay produced by an n stage shift register is

A. (n-l)T
B. nT
C. (n+l)T
D. 2nT
E. None of the above

Correct Answer:  A. (n-l)T

19. _____ is the fastest logic family; it’s used in high-speed applications.

A. DTL
B. TTL
C. ECL
D. MOS
E. None of the above

Correct Answer:  C. ECL

20. Conversion of a hexadecimal number 635316 to binary number is

A. 1100111532
B. 11000112
C. 1110112
D. 11001112
E. None of the above

Correct Answer:  B. 11000112

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