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Microprocessor

Microprocessor
Temporary registers in 8085 are

 H and L.
 W and Z.
 B and C.
 D and E.

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Microprocessor
Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value?

 CLR A
 ORA A
 SUB A
 MOV A, 00H

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Microprocessor
Of the following circuits, the one which involves storage is

RS Latch
Decoder
Mux
Nand

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Microprocessor
A 37 bit mantissa has an accuracy of

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

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

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Microprocessor
Assertion(A): Address bus is unidirectional. Reason(R): Data bus is bidirectional

 A is true but R is false
 A is false but R is true
 Both A & R are true and R is the correct explanation of A
 Both A & R are true but R is not the correct explanation of A

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