Digital Computer Electronics – Section 1

31. How many inputs signals can a gate have?

A. one
B. more than one
C. two only
D. both (a) and (b)
E. None of the above

Correct Answer:  D. both (a) and (b)

32. A combinational logic circuit which is used when it is desired to send data from two or more source through a single transmission line is known as

A. encoder
B. decoder
C. multiplexer
D. demultiplexer
E. None of the above

Correct Answer:  C. multiplexer

33. Conversion of binary number 10010012 to hexadecimal is

A. 4016
B. 3916
C. 4916
D. 4216
E. None of the above

Correct Answer:  C. 4916

34. Which logic family dissipates the minimum power?

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

Correct Answer:  D. CMOS

35. What logic function is obtained by adding an inverter to the inputs of an AND gate?

A. OR
B. NAND
C. XOR
D. NOR
E. None of the above

Correct Answer:  D. NOR

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