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Microprocessor

Microprocessor
What is the size (in bytes) of Prefetch queue in 8086?

 6.
 2.
 4.
 3.

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Microprocessor
The processor status word of 8085 microprocessor has five flags namely:

 S, Z, AC, P, OV
 S, Z, OV, P, CY
 S, OV, AC, P, CY
 S, Z, AC, P, CY

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Microprocessor
PSW stands for

 accumulator contents
 accumulator and flag register contents
 flag byte
 none

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Microprocessor
Identify the communication interfacing device from the following

 8155
 8251
 8257
 8255

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Microprocessor
The instruction set of a microprocessor

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

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

EEPROM
RAM
UVEPROM
Both B and C

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