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Microprocessor

Microprocessor
Pick up the programmable interrupt controller from the following

 8275
 8279
 8259
 8257

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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
In 8085 name/names of the 16 bit registers is/are

 program counter.
 stack pointer.
 none of these.
 both A and B.

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Microprocessor
Identify the non-programmable interfacing device from the following

 8295.
 8255.
 8257.
 8212.

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Microprocessor
Which of the following instruction will never affect the zero flag?

 DCR R
 DCX Rp
 XRA R
 ORA R

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

 PLA
 PAL
 PLD
 PROM

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