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Microprocessor

Microprocessor
During OPCODE fetch the state of S0 and S1 is

 10
 01
 11
 00

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Microprocessor
The instruction set of a microprocessor

 is stored inside the microprocessor
 cannot be changed by the user
 is specified by the manufacturers
 is specified by the user

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Microprocessor
A single instruction to clear the lower nibble of accumulator in 8085 language assembly is

 ANI F0H
 XRI FOH
 ANI OFH
 XRI 0FH

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

 10
 6
 8
 4

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Microprocessor
The execution of RST n instruction causes the stack pointer to

 decrement by two
 remain unaffected
 increment by two
None of these

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Microprocessor
Which one of the following microprocessor is not an 8-bit microprocessor

 68000
 Z-80
 6502
 8085

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