Digital Computer Electronics – Section 4

1. The XOR gates are ideal for testing parity because even-parity words produce a _____ output and odd-parity words produce a _____ output

A. low, high
B. high, low
C. odd, even
D. even, odd
E. None of the above

Correct Answer:  A. low, high

2. Which of the following is not true?

A. 0X0 = 0
B. 0 x 1 = 1
C. 1 x 0 = 0
D. 1 x 1 = 1
E. None of the above

Correct Answer:  B. 0 x 1 = 1

3. _____ has become the most widely used bipolar family.

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

Correct Answer:  B. TTL

4. The functional capacity of SSI devices is

A. 1 to 11 gates
B. 12 to 99 gates
C. 100 to 10,000 gates
D. more than 10,000 gates
E. None of the above

Correct Answer:  A. 1 to 11 gates

5. The master slave JK flip-flop is effectively a combination of

A. an SR flip-flop and a T flip-flop
B. an SR flip-flop and a D flip-flop
C. a T flip-flop and a D flip-flop
D. two T flip-flops
E. None of the above

Correct Answer:  A. an SR flip-flop and a T flip-flop

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