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Microprocessor

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

 Simplex
 Diplex
 Duplex
 Quadruplex

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Microprocessor
The clock speed of 8085 is

 3.2MHz.
 1KHz.
 1MHz.
 3.2KHz.

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 1000 H and 1001 H
 1000 H and 0FFF H
 0FFE H and 0FFF H
 0FFF H and 0FFE H

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

234
64 H
6 AFH
45 H

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Microprocessor
In 8086 the number of bytes which can be addressed directly is about

1000
10000
one million
100000

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Microprocessor
When any data transfer instruction, to transfer the data from memory to microprocessor, is executed the condition flags are

 always reset
 not affected
 always set
 affected indicating specific conditions

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