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Microprocessor

Microprocessor
XCHG instruction exchanges the content of H-L with ______ register pair.

 D-E
 B-C
 PSW
 Stack Pointer

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Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

 01000000
 11000100
 00000100
 010001000

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Microprocessor
A field programmable ROM is called

 FPROM
 MROM
 PROM
 FROM

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Microprocessor
In a computer the data transfer between hard disk and CPU is nearly the same as that between diskette and CPU.

False
True

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Microprocessor
The forms of IF statements in FORTRAN 77 are called

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

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Microprocessor
Identify the programmable interval timer from the following

 8253
 8279
 8275
 8252

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