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Microprocessor

Microprocessor
Which instruction is required to rotate the content of accumulator one bit right along with carry?

 RAL
 RLC
 RAR
 RRC

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Microprocessor
IC 7485 cannot be cascadeD.

True
False

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Microprocessor
Identify the programmable DMA controller from the following

 8279
 8253
 8257
 8251

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Microprocessor
The maximum number of seven segment displays that can be connected to 8279 is

 8
 16
 18
 12

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Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

 11000100
 010001000
 00000100
 01000000

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Microprocessor
8085 microprocessor has how many pins

  30.
  40.
 39.
 41.

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