Exercise: Digital Electronics

Questions for: Digital Electronics

As compared to MOS memories, bipolar memories have
A:
slower access time but are cheaper
B:
slower access time and are costly
C:
faster access time and are cheaper
D:
faster access time and are costly
Answer: D
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The values of 25 in octal system is
A:
40
B:
20
C:
400
D:
200
Answer: A
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figure shows a NAND latch used as a switch debouncer. With the switch in STOP position. Q will be equal to
A:
0
B:
1
C:
CLK
D:
none of these
Answer: A
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A five bit binary adder is used to add 01001 and 00111. The adders from LSB position are numbered as FA0, FA1, FA2 and FA3. The outputs of FA2 are
A:
SUM = 0
B:
SUM = 0, CARRY = 1
C:
SUM = 1, CARRY = 0
D:
SUM = 1, CARRY = 1
Answer: A
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Binary number 11011.01 when converted to its 2's complement will become
A:
0101.110
B:
01111.10
C:
01100.10
D:
00100.11
Answer: D
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