Exercise: Digital Electronics

Questions for: Digital Electronics

A clock pulse is fed into 3 bit binary down count. The signal at B output is
A:
B:
C:
D:
none of these
Answer: A
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Which interrupts are masked?
A:
5.5
B:
6.5
C:
7.5
D:
None
Answer: B
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In 8085 microprocessor, an interrupt service request is serviced
A:
immediately on receipt of request
B:
after the execution of the current instruction is completed
C:
at the end of the current machine cycle
D:
none
Answer: B
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Which of the following characteristics is not true for TTL Logic?
A:
Good speed
B:
Low power dissipation per gate
C:
High cost
D:
None of these
Answer: C
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When signed numbers are used in binary arithmetic, which of the following has unique representation for zero?
A:
Sign-magnitude
B:
1's complement
C:
2's complement
D:
9's complement
Answer: C
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