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Microprocessor

Microprocessor
Pick up the programmable interrupt controller from the following

 8279
 8259
 8275
 8257

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Microprocessor
The timing difference between a slow memory and fast processor can be resolved if

External buffer is used
Processor is capable of waiting
Neither A nor B
Either A or B

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Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 POP PSW
 PUSH PSW
 PUSH SP
 PUSH A

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Microprocessor
Because we wish to allow each ASCII code to occupy one location in memory, most memories are __________ addressable.

BYTE
DOUBLEWORD (32 bits)
WORD (16 bits)
NIBBLE

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Microprocessor
After RESET 8255 will be in

 mode 0; all ports are output
 mode 0; all ports are input
 unchanged condition
 mode 2

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Microprocessor
PSW stands for

 none
 flag byte
 accumulator contents
 accumulator and flag register contents

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