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Microprocessor

Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 PUSH A
 POP PSW
 PUSH SP
 PUSH PSW

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Microprocessor
Both the ALU and control section of CPU employ which special purpose storage location?

 Accumulators
 Decoders
 Registers
 Buffers

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Microprocessor
Identify the non-programmable interfacing device from the following

 8257.
 8295.
 8212.
 8255.

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Microprocessor
The timing difference between a slow memory and fast processor can be resolved if

Processor is capable of waiting
Either A or B
Neither A nor B
External buffer is used

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Microprocessor
The first machine cycle of an instruction is always

 A memory read cycle
 A memory write cycle
 An I/O read cycle
 A fetch cycle

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Microprocessor
In a microprocessor based system the stack is always in

 RAM
 EPROM
 ROM
 microprocessor

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