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Microprocessor

Microprocessor
The addressing mode in instruction PUSH B is

 register indirect
 direct
 immediate
 register

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Microprocessor
Identify the communication interfacing device from the following

 8251
 8155
 8257
 8255

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Microprocessor
Which one of the following ICs is used to interface keyboard and display?

 8253
 8259
 8251
 8279

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

 6502
 68000
 Z-80
 8085

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Microprocessor
When an 8085 microprocessor is reset, the address bus contains

 002CH
 0000H
 0043H
 003CH

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Microprocessor
Which of the data transfer is not possible in microprocessor

 I/O device to accumulator
 accumulator to memory
 memory to memory
 memory to accumulator

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