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Microprocessor

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

 XRI 0FH
 CMA
 ORI 0FH
 ANI 0FH

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Microprocessor
The execution of RST n instruction causes the stack pointer to

 increment by two
 remain unaffected
 decrement by two
None of these

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Microprocessor
________used to implement the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by setting various bits to form masks or generate output data via the Serial Output Data (SOD) line.

 DI
 SIM
 RIM
 EI

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

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

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Microprocessor
Which of the following is not a general purpose peripheral?

Programmable CRT controller
Programmable interrupt controller
Programmable interval timer
I/O port

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Microprocessor
In 8086 the number of bytes which can be addressed directly is about

1000
one million
100000
10000

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