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Microprocessor

Microprocessor
A 37 bit mantissa has an accuracy of

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

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Microprocessor
The number of status flags present in 8085 microprocessor are

 8
 16
 5
 10

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Microprocessor
Which of the following instruction will never affect the zero flag?

 ORA R
 XRA R
 DCX Rp
 DCR R

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

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

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

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

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Microprocessor
What is mean by ALU

 Arithmetic logic unit
 Arithmetic logic unsigned
 Arithmetic local unsigned
 Arithmetic logic upgrade

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