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Microprocessor

Microprocessor
Which one of the following circuits transmits two messages simultaneously in one direction

 Simplex
 Duplex
 Diplex
 Quadruplex

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Microprocessor
In 8085 microprocessor based system maximum possible number of input/output devices can be connected using I/O mapped I/O technique is

 512
 64
 256
 65536

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Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

 00000100
 01000000
 010001000
 11000100

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Microprocessor
What is the size (in bytes) of Prefetch queue in 8086?

 6.
 3.
 4.
 2.

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Microprocessor
The data bus of any microprocessor is always

 None
 Either unidirectional or bi-directional
 Bi-directional
 Unidirectional

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Microprocessor
MS Access is a DBMS software.

True
False

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