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Microprocessor

Microprocessor
DMA is used between

 microprocessor and I/O
 none
 microprocessor and memory
 memory and I/O

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Microprocessor
While CMP B instruction executes,

 only carry flag will be affected.
 all flags will be affected.
 only carry and zero flags will be affected.
 no flags will be affected.

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Microprocessor
8085 microprocessor has how many pins

 39.
  40.
 41.
  30.

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Microprocessor
Each instruction in assembly language program has the following fields:Lable fieldMnemonic fieldOperand fieldComment fieldThe correct sequence of these fields is?

2, 1, 4, 3
2, 1, 3, 4
1, 2, 4, 3
1, 2, 3, 4

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Microprocessor
After RESET 8255 will be in

 mode 0; all ports are input
 unchanged condition
 mode 0; all ports are output
 mode 2

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Microprocessor
The number of output pins in 8085 microprocessors are

 19.
 40.
 21.
 27.

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