Microprocessor
While STC instruction executes,

 only carry flag will be affected.
 only carry and zero flags will be affected.
 no flags will be affected.
 all flags will be affected.

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Microprocessor
Assertion(A): The frequency of 8085 system is ½ of the crystal frequency. Reason(R): Microprocessor (8085) requires a two phase clock.

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

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