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Microprocessor

Microprocessor
It is possible to copy a file in the same directory.

True
False

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Microprocessor
SUB A instruction in 8085

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

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Microprocessor
The cycle required to fetch and execute an instruction in a 8085 microprocessor is which one of the following?

 Machine cycle
 Memory cycle
 Instruction cycle
 Clock cycle

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Microprocessor
In order to complement the lower nibble of accumulator one can use

 CMA
 ANI 0FH
 ORI 0FH
 XRI 0FH

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Microprocessor
The number of output pins in 8085 microprocessors are

 19.
 27.
 40.
 21.

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Microprocessor
A bus connected between the CPU and main memory that permits transfer of information between main memory and the CPU is known as

 DMA bus
 Address bus
 Memory bus
 Control bus

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