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Microprocessor

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

 Quadruplex
 Diplex
 Simplex
 Duplex

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Microprocessor
Consider the following statements: In 8085 microprocessor, data-bus and address bus are multiplexed in order to I)Increase the speed of microprocessor. II)Reduce the number of pins. III)Connect more peripheral chips. Which of these statements is/are correct?

 (II) & (III)
 (I), (II) & (III)
 (I) only
 (II) only

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Microprocessor
The word size of 8085 microprocessor is

 8-bit
 20-bit
 16-bit
 4-bit

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Microprocessor
Length of the instruction POP D is

 4 byte
 1 byte
 3 byte
 2 byte

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Microprocessor
The length of bus cycle in 8086/8088 is four clock cycles, T1, T2, T3, T4 and an indeterminate number of wait state clock cycles denoted by Tw. The wait states are always inserted between

 T3 & T4
 T1 & T2
 T2 & T3
 T4 & T1

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Microprocessor
I)A total of about one million bytes can be directly addressed by the 8086 microprocessor II)8086 has thirteen 16-bit registers III)8086 has eight flags IV)Compared to 8086, the 80286 provides a higher degree of memory protection Which one of the statements given above are correct?

 1,2 & 4
 2,3&4
 1,2 & 3
 1,3 &4

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