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Microprocessor

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

 ORI 0FH
 ANI 0FH
 CMA
 XRI 0FH

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Microprocessor
In 8086 the number of bytes which can be addressed directly is about

100000
one million
1000
10000

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Microprocessor
The frequency of the driving network connected between pins 1 and 2 of 8085 microprocessor is

 four times the desired frequency
 twice the desired frequency
None of these
 equal to the desired frequency

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Microprocessor
Assertion(A): Address bus is unidirectional. Reason(R): Data bus is bidirectional

 Both A & R are true but R is not the correct explanation of A
 A is false but R is true
 A is true but R is false
 Both A & R are true and R is the correct explanation of A

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Microprocessor
Consider the following I) Sign flag II) Trap flag III) Parity flag IV) Auxiliary carry flag. Which one of the above flags is/are present in 8085 microprocessor?

 (I) ,(III) & (IV)
 (I) & (II)
 (II) & (III)
 (I) only

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Microprocessor
The number of status flags present in 8085 microprocessor are

 10
 8
 5
 16

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