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Microprocessor

Microprocessor
An e-mail message can be sent to many recipients.

False
True

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Microprocessor
In microprocessor based system DMA refers to

None of these
 direct memory access for microprocessor
 direct memory access for the I/O device
 direct memory access for the user

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Microprocessor
The first machine cycle of an instruction is always

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

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Microprocessor
SPHL instruction copies the content of H-L register pair to the _________.

 Stack Pointer
 D-E
 B-C
 PSW

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Microprocessor
What is SIM?

 None of these.
 Sorting interrupt mask.
 Select interrupt mask.
  Set interrupt mask.

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Microprocessor
Each instruction in assembly language program has the following fields:Lable fieldMnemonic fieldOperand fieldComment fieldThe correct sequence of these fields is?

1, 2, 3, 4
2, 1, 4, 3
1, 2, 4, 3
2, 1, 3, 4

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