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Microprocessor

Microprocessor
RST 3 instruction will cause the processor to branch to the location

 0000H
 0018H
 0028H
 0024H

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Microprocessor
In a computer the data transfer between hard disk and CPU is nearly the same as that between diskette and CPU.

True
False

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Microprocessor
The control flags in 8086 are:

 the direction flag(DF).
 the Trap flag(TF).
 the interrupt flag(IF).
All of these

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Microprocessor
Number of Hex digits needed to represent the 20-bit address of a memory location are

 4
 5
 20
 16

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Microprocessor
Identify the programmable interval timer from the following

 8279
 8252
 8275
 8253

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Microprocessor
In an intel 8085A, which is the first machine cycle of an instruction?

 A memory write cycle
 A memory read cycle
 An op-code fetch cycle
 An I/O read cycle

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