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Microprocessor

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

 PROM
 PLA
 PLD
 PAL

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

 512
 65536
 256
 285

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

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Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 16
 7
 13
 10

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Microprocessor
The five flags in 8085 are designated as

Z, CY, S, P and AC
Z, C, S, P, AC
Z, CY, S, D, AC
D, Z, S, P, AC

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Microprocessor
The register which holds the information about the nature of results of arithmetic and logic operations is called as

 Flag register
 Condition code register
 Accumulator
 Process status register

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