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Microprocessor

Microprocessor
Register pair used to indicate memory

 H and L
 D and E
 B and C
 W and Z

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Microprocessor
Which memory has read operation, byte erase, byte write and chip erase?

EEPROM
UVEPROM
RAM
Both B and C

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Microprocessor
The number of output pins in 8085 microprocessors are

 19.
 27.
 21.
 40.

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Microprocessor
Maximum of how many devices can be connected simultaneously to the microprocessor via 8257 in DMA data transfer mode?

 6
 8
 10
 4

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Microprocessor
A microprocessor differentiates between op code, data/address at any time by

 the sequence in which memory contents are fetched by it
 the program counter
 its internal registers
 the stack pointer

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

 Stack Pointer
 PSW
 D-E
 B-C

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