Exercise: Digital Electronics

Questions for: Digital Electronics

In D-type FF, Preset (Pr) and clear (Clr) inputs are called
A:
Synchronous
B:
Asynchronous
C:
Data
D:
None
Answer: B
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RS latch can be built with
A:
NOR gates
B:
NAND gates
C:
NOR or NAND gates
D:
none of the above
Answer: C
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RAMs can be built with bipolar or CMOS transistor RAMs that are not possible with bipolar transistors are
A:
SRAM
B:
SRAM, DRAM
C:
DRAM
D:
PROM
Answer: C
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Semiconductor ROM's are sometimes preferred to semiconductor RAM's because
A:
ROM's are cheaper than RAMs
B:
ROMs are faster
C:
ROMs do not require power supply for their operations
D:
Programs stored in ROMs cannot be altered either by the power failure or by the user
Answer: D
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An XOR gate with 6 variables is as follows A ⊕ B ⊕ C ⊕ D ⊕ E ⊕ F. The number of minterms in the Boolean expression is
A:
6
B:
12
C:
64
D:
32
Answer: D
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