Digital Computer Electronics – Section 2

26. Resistor Ratio design is used in linear ICs because

A. Ratios increase input resistance
B. Ratios increase amplifier gain
C. Precise resistor values are not possible with IC processes
D. All of the above
E. None of the above

Correct Answer:  C. Precise resistor values are not possible with IC processes

27. What advantages do ICs have over discrete-device circuits due to their greater complexity (i.e. more circuitary in less area)

A. Smaller size
B. Higher reliability
C. Lower cost
D. All of the above
E. None of the above

Correct Answer:  D. All of the above

28. Conversion of an octal number 1368 to hexadecimal number is

A. 7E16
B. 5E16
C. 5A16
D. 5D16
E.None of the above

Correct Answer:  B. 5E16

29. The control and arithmetic-logic sections are called the _____

A. Block diagram
B. Control Unit
C. Input / Output Unit
D. Central Processing Unit
E. None of the above

Correct Answer:  D. Central Processing Unit

30. How many full adders are required to construct an m- bit parallel adder?

A. m/2
B. m-1
C. m
D. m+1
E. None of the above

Correct Answer:  C. m

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