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Microprocessor

Microprocessor
Identify the programmable interval timer from the following

 8279
 8252
 8253
 8275

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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?

 1,2 & 4
 2,3&4
 1,3 &4
 1,2 & 3

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Microprocessor
In C the keywords are also called

Class words
Character words
Special words
Reserved words

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Microprocessor
In order to complement the lower nibble of accumulator one can use

 CMA
 ORI 0FH
 XRI 0FH
 ANI 0FH

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Microprocessor
For a memory with a 16-bit address space, the addressability is

16 bits
Cannot be determined
2^16 bits
8 bits

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Microprocessor
DMA signal/signals in 8085 is/are

 All.
 HLDA.
 READY.
 HOLD.

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