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Microprocessor

Microprocessor
XCHG instruction exchanges the content of H-L with ______ register pair.

 PSW
 Stack Pointer
 B-C
 D-E

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Microprocessor
The address bus width of a microprocessor which is capable of addressing 64 Kbytes of the memory is

 8
 20
 16
 12

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Microprocessor
Each instruction in assembly language program has the following fields:Lable fieldMnemonic fieldOperand fieldComment fieldThe correct sequence of these fields is?

2, 1, 3, 4
1, 2, 3, 4
2, 1, 4, 3
1, 2, 4, 3

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Microprocessor
What is the size (in bytes) of Prefetch queue in 8086?

 4.
 3.
 2.
 6.

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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
Maximum number of I/O that can be addressed by the INTEL 8085 is

 65536
 285
 512
 256

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