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Microprocessor

Microprocessor
DMA signal/signals in 8085 is/are

 READY.
 HOLD.
 All.
 HLDA.

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Microprocessor
If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

A smaller floating point number
A larger floating point number
A negative floating point number
Either A or B depending on the actual number

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Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 3
 5
 6
 4

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Microprocessor
A combinational PLD with a programmable AND array and a programmable OR array is called a

 PLA
 PROM
 PAL
 PLD

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

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

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Microprocessor
The multiplexing of address bus and data buses is used in

 none of these.
 all the microprocessors.
 never multiplexed.
 depends on the internal architecture.

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