Exercise: Digital Electronics

Questions for: Digital Electronics

Race condition occurs in
A:
synchronous circuit
B:
asynchronous circuit
C:
combinational circuit
D:
all the Digital circuit
Answer: B
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Recommended fanout for ECL is
A:
5
B:
10
C:
15
D:
25
Answer: D
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In the given figure shows a 3 bit shift register using TTL flip flops. Initially all the flip flops are set to 0 state. After 8 clock pulses
A:
A = 1, B = 1, C = 1
B:
A = 1, B = 1, C = 0
C:
A = 0, B = 1, C = 1
D:
A = 0, B = 0, C = 1
Answer: A
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If a microcomputer has a 64 K memory; what is the hexadecimal notations for the last memory location?
A:
1111
B:
1A1A
C:
EEEF
D:
FFFF
Answer: D
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Which of the following needs DC forward voltage to emit light?
A:
LED
B:
LCD
C:
Both LED as well as LCD
D:
None of the above
Answer: A
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