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Microprocessor

Microprocessor
The number of output pins in 8085 microprocessors are

 27.
 19.
 40.
 21.

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Microprocessor
In 8086, _______ uses a mechanism known as an instruction stream queue to implement a pipeline architecture.

 Both ‘b’ and ‘c’
 Execution Unit (EU)
 None of these
 Bus Interface Unit (BIU)

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Microprocessor
Which of the following interrupt is both level and edge sensitive?

 TRAP
 RST 7.5
 INTR
 RST 5.5

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Microprocessor
In microprocessor based system I/O ports are used to interface

 the I/P device only
 the I/O devices and memory chips
 all the I/O devices
 the O/P devices only

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Microprocessor
The cycle required to fetch and execute an instruction in a 8085 microprocessor is which one of the following?

 Machine cycle
 Memory cycle
 Instruction cycle
 Clock cycle

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Microprocessor
Register pair used to indicate memory

 B and C
 H and L
 W and Z
 D and E

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