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Microprocessor

Microprocessor
In order to complement the lower nibble of accumulator one can use

 ANI 0FH
 ORI 0FH
 CMA
 XRI 0FH

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

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

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Microprocessor
Which one of the following circuits transmits two messages simultaneously in one direction

 Duplex
 Diplex
 Quadruplex
 Simplex

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Microprocessor
In C the keywords are also called

Character words
Class words
Special words
Reserved words

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Microprocessor
Identify the programmable interval timer from the following

 8253
 8279
 8275
 8252

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Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

 There are 16 address lines
 It counts 16-bits at a time
 It has to fetch two 8-bit data at a time
 It facilitates the user storing 16-bit data temporarily

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