Exercise: Digital Electronics

Questions for: Digital Electronics

The MOS symbols shown indicates:
  1. that it is depletion type
  2. that it is enhancement type
  3. that it is n channel
  4. that it is p channel
  5. that electrons flow from D to S
  6. that holes flow from D to S
The only true statements are
A:
1, 3, 6
B:
2, 4, 6
C:
1, 3, 5
D:
2, 3, 6
Answer: A
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EEPROM is also known as
A:
UVPROM
B:
EAPROM
C:
both UVPROM and EAPROM
D:
none of the above
Answer: B
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The reason for glitches on the outputs of decoding gates on a synchronous counter is
A:
FFs changing states together
B:
FFs changing states one at a time
C:
AND gates not functioning properly
D:
none of the above
Answer: B
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In 8085, to disable the whole interrupt system (except TRAP)
A:
the DI instruction may be used
B:
the DO instruction may be used
C:
the INTERRUPT instruction may be used
D:
the El instruction may be used
Answer: A
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Words having 8 bits are to be stored into computer memory. The number of lines required for writing into memory are
A:
1
B:
2
C:
4
D:
8
Answer: D
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