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Microprocessor

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

100000
10000
1000
one million

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Microprocessor
How many 16-bit special purpose registers are present in 8085 microprocessor?

 6
 2
 16
 8

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Microprocessor
What is SIM?

 Select interrupt mask.
 Sorting interrupt mask.
 None of these.
  Set interrupt mask.

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

 4
 6
 5
 3

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Microprocessor
Number of Hex digits needed to represent the 20-bit address of a memory location are

 20
 5
 16
 4

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Microprocessor
The data bus of any microprocessor is always

 Unidirectional
 None
 Either unidirectional or bi-directional
 Bi-directional

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