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Microprocessor

Microprocessor
The minimum number of transistors required to implement a two input AND gate is

8
6
4
2

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Microprocessor
I)A total of about one million bytes can be directly addressed by the 8086 microprocessor II)8086 has thirteen 16-bit registers III)8086 has eight flags IV)Compared to 8086, the 80286 provides a higher degree of memory protection Which one of the statements given above are correct?

 2,3&4
 1,2 & 3
 1,3 &4
 1,2 & 4

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Microprocessor
At the beginning of a fetch cycle, the contents of the program counter are

 transferred to memory data register.
 transferred to memory address register .
 incremented by one.
 transferred to address bus.

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Microprocessor
The control flags in 8086 are:

 the direction flag(DF).
 the Trap flag(TF).
 the interrupt flag(IF).
All of these

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Microprocessor
The forms of IF statements in FORTRAN 77 are called

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

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Microprocessor
The operating modes of 8255 A are called

Mode 0 and mode 1
Mode 0 and mode 2
Mode 0, mode 2 and mode 3
Mode 0, mode 1 and mode 2

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