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Microprocessor

Microprocessor
In Fortran 77 a variable name can contain special characters.

True
False

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Microprocessor
Both the ALU and control section of CPU employ which special purpose storage location?

 Decoders
 Registers
 Buffers
 Accumulators

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Microprocessor
The frequency of the driving network connected between pins 1 and 2 of 8085 microprocessor is

 equal to the desired frequency
None of these
 four times the desired frequency
 twice the desired frequency

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Microprocessor
Because we wish to allow each ASCII code to occupy one location in memory, most memories are __________ addressable.

DOUBLEWORD (32 bits)
NIBBLE
BYTE
WORD (16 bits)

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Microprocessor
The stack pointer

 resides in microprocessor
 resides in RAM
 resides in ROM
 may be in RAM or ROM

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Microprocessor
The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are

 irrelevant
 all bits reset (i.e. 00H)
 all bits set (i.e. FFH)
 same as the content of A7-A0

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