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Microprocessor

Microprocessor
Maximum number of I/O that can be addressed by the INTEL 8085 is

 285
 256
 65536
 512

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Microprocessor
Which general register or general register pair is incremented/decremented by 2 during PUSH and POP instructions?

 H-L.
 Stack Pointer.
 D-E.
 Program Counter.

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Microprocessor
In 8086, _______ uses a mechanism known as an instruction stream queue to implement a pipeline architecture.

 None of these
 Bus Interface Unit (BIU)
 Execution Unit (EU)
 Both ‘b’ and ‘c’

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Microprocessor
Let the content of register C be 00000000 before the instruction DCR C is executed. The content of register C after the after the execution of this instruction will be

 00000001
 None
 00000000
 11111111

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Microprocessor
Register pair used to indicate memory

 W and Z
 H and L
 B and C
 D and E

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Microprocessor
Which one of the following microprocessor has 16-bit data bus?

 Z-80
 8085
 6502
 68000

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