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Microprocessor

Microprocessor
Identify the communication interfacing device from the following

 8155
 8251
 8257
 8255

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Microprocessor
Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value?

 MOV A, 00H
 CLR A
 ORA A
 SUB A

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

 Z-80
 6502
 8085
 68000

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Microprocessor
Output of the assembler in machine codes is referred to as

 Macroinstruction
 Source program
 Symbolic addressing
 Object program

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Microprocessor
Identify the non-programmable interfacing device from the following

 8295.
 8257.
 8212.
 8255.

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Microprocessor
The number of status flags present in 8085 microprocessor are

 16
 10
 5
 8

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