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Microprocessor

Microprocessor
Using DeMorgan’s Theorem we can convert any AND-OR structure into

NAND-NAND
NOR-NAND
OR-NAND
NAND-NOR

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Microprocessor
RST 3 instruction will cause the processor to branch to the location

 0018H
 0000H
 0024H
 0028H

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Microprocessor
Consider the following statements: Arithmetic Logic Unit (ALU) 1.Performs arithmetic operations 2.Performs comparisons. 3.Communicates with I/O devices 4.Keeps watch on the system Which of these statements are correct?

 1, 2 and 3
 3 and 4 only
 1 and 2 only
 1, 2, 3 and 4

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Microprocessor
Of the following circuits, the one which involves storage is

Mux
RS Latch
Decoder
Nand

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Microprocessor
SUB A instruction in 8085

 reset carry and sign flags
 sets zero and carry flags
 sets zero and sign flags
 reset zero and parity flags

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Microprocessor
HLT opcode means

  end of program.
  store result in memory.
  load accumulator with contents of register.
  load data to accumulator.

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