Computer Organization And Architecture - I/O Interface

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1. The 8085 microprocessor responds to the presence of an interrupt

Answer
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Option : C
Explanation :

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2. CPU has two modes privileged and non-privileged.In order to change the mode from privileged to non-privileged

Answer
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Option : B
Explanation : A software interrupt is initiated by some program module which need some CPU services, at that time the two modes can be interchanged. Hence (B) is correct option.

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3. The TRAP interrupt mechanism of the 8085 microprocessor executes

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Option : A
Explanation :

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4. Which of the following interrupts are unmaskable interrupts ?

Answer
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Option : C
Explanation :

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5. The address range to which I/O chip will respond is

Answer
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Array

Option : B
Explanation :

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