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Microprocessor

Microprocessor
Using DeMorgan’s Theorem we can convert any AND-OR structure into

NOR-NAND
NAND-NOR
NAND-NAND
OR-NAND

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Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 3
 4
 6
 5

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Microprocessor
Bus Interface Unit (BIU) in 8086 performs the following functions:

 Arithmatic and Logic operations.
 Instruction decoding.
 Instruction fetch.
 All the above.

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Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

234
6 AFH
64 H
45 H

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Microprocessor
In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is

Arithmetic, relational, assignment
Assignment, relational, arithmetic
Arithmetic, assignment, relational
Relational, assignment, arithmetic

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Microprocessor
The number of output pins in 8085 microprocessors are

 21.
 19.
 40.
 27.

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