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Microprocessor

Microprocessor
Identify the communication interfacing device from the following

 8257
 8255
 8155
 8251

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

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

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Microprocessor
Which of the following instruction is not possible in 8085?

 POP PSW
 POP B
 POP D
 POP 30 H

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Microprocessor
Number of Hex digits needed to represent the 20-bit address of a memory location are

 16
 20
 4
 5

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Microprocessor
The forms of IF statements in FORTRAN 77 are called

Logical IF and arithmetic IF
Logical IF, block IF and arithmetic IF
Logical IF and Block IF
Logic IF, block IF, arithmetic IF and negate IF

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Microprocessor
The first microprocessor to include virtual memory in the intel microprocessor family is

 80286
 80486
 Pentium
 80386

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