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Microprocessor

Microprocessor
The minimum number of transistors required to implement a two input AND gate is

6
4
2
8

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Microprocessor
Which of the following is a valid integer constant?

127
127
127
125 + 3

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Microprocessor
Using DeMorgan’s Theorem we can convert any AND-OR structure into

NOR-NAND
NAND-NOR
OR-NAND
NAND-NAND

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Microprocessor
Identify the programmable DMA controller from the following

 8257
 8279
 8253
 8251

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Microprocessor
The microprocessor may be made to exit from HALT state by asserting

 A or B or HOLD line
 RESTART
 READY line
 any of the five interrupt lines

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Microprocessor
The data bus of any microprocessor is always

 Either unidirectional or bi-directional
 Unidirectional
 Bi-directional
 None

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