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Microprocessor

Microprocessor
The number of interrupt lines in 8085 is

5
3
4
2

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

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Microprocessor
In 8085, the pins for SID and SOD are

3 and 4 respectively
5 and 4 respectively
4 and 5 respectively
4 and 3 respectively

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Microprocessor
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location

 0024H.
 0060H.
 0048H.
 0030H.

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Microprocessor
A 37 bit mantissa has an accuracy of

10 decimal places
8 decimal places
6 decimal places
11 decimal places

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

 Accumulator
 Flag register
 Condition code register
 Process status register

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