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Microprocessor

Microprocessor
Which memory has read operation, byte erase, byte write and chip erase?

Both B and C
RAM
UVEPROM
EEPROM

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Microprocessor
Maximum of how many devices can be connected simultaneously to the microprocessor via 8257 in DMA data transfer mode?

 4
 8
 6
 10

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Microprocessor
8085 microprocessor has how many pins

  30.
  40.
 41.
 39.

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Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 PUSH PSW
 PUSH A
 PUSH SP
 POP PSW

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Microprocessor
Which of the following is type declaration statement in C?

prin = prin * prin
king = horse + 1
int bar
s = s + 1

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Microprocessor
In 8085 microprocessor based system maximum possible number of input/output devices can be connected using I/O mapped I/O technique is

 65536
 64
 256
 512

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