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Microprocessor

Microprocessor
A combinational PLD with a programmable AND array and a fixed OR array is called a

 PAL
 PROM
 PLD
 PLA

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Microprocessor
Inintel 8085A microprocessor ALE signal is made high to

 To achieve all the functions listed above
 To disable data bus
 Enable the data bus to be used as low order address bus
 To latch data D0-D7 from data bus

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Microprocessor
We say that a set of gates is logically complete if we can build any circuit without using any other kind of gates. Which of the following sets are logically complete

Set of {EXOR, NOT}
Set of {AND,OR,NOT}
None of these
Set of {AND,OR}

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Microprocessor
The multiplexing of address bus and data buses is used in

 never multiplexed.
 depends on the internal architecture.
 all the microprocessors.
 none of these.

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Microprocessor
EPROMs are preferred for storing programs while developing new microprocessor based system. Because of their

 erasable and programmable characteristic
 all the above characteristic
 random access characteristic
 non-volatile characteristic

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Microprocessor
In 8085 microprocessor which one of the following statement is wrong

 there is a pin available for serial output
 there is a pin available for serial input
 serial I/O is possible through SIM and RIM instruction
 serial I/O is not possible

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