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Microprocessor

Microprocessor
Which of the following is a valid integer constant?

127
125 + 3
127
127

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Microprocessor
A mask programmed ROM is

 erasable and programmable
 programmed at the time of fabrication
 programmed by the user
 erasable electrically

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Microprocessor
Consider the following statements: In 8085 microprocessor, data-bus and address bus are multiplexed in order to I)Increase the speed of microprocessor. II)Reduce the number of pins. III)Connect more peripheral chips. Which of these statements is/are correct?

 (II) & (III)
 (I), (II) & (III)
 (II) only
 (I) only

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

 RAR
 RLC
 RRC
 RAL

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Microprocessor
8085 microprocessor has how many pins

 41.
  30.
  40.
 39.

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Microprocessor
________used to implement the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by setting various bits to form masks or generate output data via the Serial Output Data (SOD) line.

 EI
 RIM
 DI
 SIM

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