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Microprocessor

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

True
False

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

 Z-80
 6502
 68000
 8085

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Microprocessor
The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are

 all bits reset (i.e. 00H)
 all bits set (i.e. FFH)
 irrelevant
 same as the content of A7-A0

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Microprocessor
Identify the programmable DMA controller from the following

 8257
 8251
 8279
 8253

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

 6.
 3.
 2.
 4.

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Microprocessor
Which of the following conditions is not allowed in an RS latch?

R is negated, S is asserted
R is asserted, S is asserted
R is negated, S is negated
R is asserted, S is negated

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