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Microprocessor

Microprocessor
Of the following circuits, the one which involves storage is

Nand
Decoder
Mux
RS Latch

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Microprocessor
A sequence of two registers that multiplies the content of DE register pair by two and stores the result in HL register pair (in 8085 assembly language) is

 PCHL & DAD D
 XTHL & DAD H
 XCHG & DAD B
 XCHG & DAD H

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

 ORI 0FH
 ANI 0FH
 CMA
 XRI 0FH

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Microprocessor
The first microprocessor to include virtual memory in the intel microprocessor family is

 80386
 80486
 Pentium
 80286

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

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

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Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 5
 4
 3
 6

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