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Microprocessor

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

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

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Microprocessor
Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier.[Hint: Construct the truth table for the adder and the multiplier]

Circuit B has more gates than circuit A
Circuit A has more gates than circuit B
Circuit A has the same number of gates as circuit B
None of these

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

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

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Microprocessor
Identify the communication interfacing device from the following

 8155
 8257
 8255
 8251

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Microprocessor
How many bytes in a zero memory page should be reserved for vectors used by RST instructions?

 128.
 16.
 64.
 32.

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Microprocessor
Using one 8259 IC is equivalent to providing …………. INTR pins on 8085

 18
 8
 12
 16

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