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Microprocessor

Microprocessor
Register pair used to indicate memory

 W and Z
 H and L
 D and E
 B and C

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Microprocessor
Consider the following statements: Arithmetic Logic Unit (ALU) 1.Performs arithmetic operations 2.Performs comparisons. 3.Communicates with I/O devices 4.Keeps watch on the system Which of these statements are correct?

 1 and 2 only
 1, 2, 3 and 4
 1, 2 and 3
 3 and 4 only

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Microprocessor
A combinational PLD with a fixed AND array and a programmable OR array is called a

 PLA
 PAL
 PLD
 PROM

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Microprocessor
Maximum number of I/O that can be addressed by the INTEL 8085 is

 256
 285
 65536
 512

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

 ORI 0FH
 XRI 0FH
 ANI 0FH
 CMA

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Microprocessor
A field programmable ROM is called

 MROM
 FROM
 FPROM
 PROM

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