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Microprocessor

Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 245
 246
 247
 244

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Microprocessor
The characteristics of RESET OUT signal is/are

 the signal is synchronized to the processor clock.
 this signal can be used to reset other devices.
 all.
 indicates that µp is being reset.

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Microprocessor
A microprocessor differentiates between op code, data/address at any time by

 its internal registers
 the sequence in which memory contents are fetched by it
 the program counter
 the stack pointer

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Microprocessor
When any data transfer instruction, to transfer the data from memory to microprocessor, is executed the condition flags are

 always set
 always reset
 affected indicating specific conditions
 not affected

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Microprocessor
Which one of the following circuits transmits two messages simultaneously in one direction

 Quadruplex
 Diplex
 Simplex
 Duplex

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

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