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Microprocessor

Microprocessor
XCHG instruction exchanges the content of H-L with ______ register pair.

 B-C
 Stack Pointer
 D-E
 PSW

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Microprocessor
An 8-bit microprocessor signifies that

 8-interrupt lines
 8-bit address bus
 8-bit data bus
 8-bit controller

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Microprocessor
A mask programmed ROM is

 erasable electrically
 programmed by the user
 erasable and programmable
 programmed at the time of fabrication

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Microprocessor
The microprocessor issues ALE during first T-state of

 memory READ cycle only
 every machine cycle
 memory WRITE cycle only
 fetch cycle only

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Microprocessor
The word size of 8085 microprocessor is

 4-bit
 20-bit
 16-bit
 8-bit

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Microprocessor
The address bus of any microprocessor is always

 Bi-directional
 Either unidirectional or bi-directional
 None
 Unidirectional

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