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Microprocessor

Microprocessor
Total number of modes the 8253 can work

 8
 6
 4
 12

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

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

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Microprocessor
The five flags in 8085 are designated as

Z, CY, S, P and AC
Z, CY, S, D, AC
Z, C, S, P, AC
D, Z, S, P, AC

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Microprocessor
The frequency of the driving network connected between pins 1 and 2 of 8085 microprocessor is

 equal to the desired frequency
 twice the desired frequency
None of these
 four times the desired frequency

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Microprocessor
The number of output pins in 8085 microprocessors are

 27.
 19.
 21.
 40.

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Microprocessor
The instruction set of a microprocessor

 is specified by the manufacturers
 cannot be changed by the user
 is stored inside the microprocessor
 is specified by the user

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