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Microprocessor

Microprocessor
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location

 0048H.
 0024H.
 0030H.
 0060H.

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Microprocessor
A microprocessor differentiates between op code, data/address at any time by

 the program counter
 the sequence in which memory contents are fetched by it
 the stack pointer
 its internal registers

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Microprocessor
The data bus of any microprocessor is always

 Unidirectional
 Either unidirectional or bi-directional
 None
 Bi-directional

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Microprocessor
Which one of the following ICs is used to interface keyboard and display?

 8259
 8251
 8253
 8279

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Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 4
 3
 6
 5

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Microprocessor
The operations executed by two or more control units are referred as

 Multi-operations
 Macro-operations
 Bi control-operations
 Micro-operations

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