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Microprocessor

Microprocessor
The number of interrupt lines in 8085 is

5
3
4
2

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

 Diplex
 Duplex
 Simplex
 Quadruplex

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Microprocessor
‘Burst refresh’ in DRAM is also called

Concentrated refresh
Distributed refresh
Hidden refresh
None of these

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

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

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

 Instruction cycle
 Machine cycle
 Clock cycle
 Memory cycle

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Microprocessor
Total numbers of output pins in 8085 microprocessor are

 30
 13
 27
 40

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