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Microprocessor

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

 CMA
 XRI 0FH
 ANI 0FH
 ORI 0FH

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Microprocessor
Number of Hex digits needed to represent the 20-bit address of a memory location are

 5
 20
 4
 16

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Microprocessor
________is the only non-vectored interrupt in 8085 microprocessor.

 RST 7
 TRAP
 INTR
 RST 5.5

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Microprocessor
In 8085 microprocessor based system maximum possible number of input/output devices can be connected using I/O mapped I/O technique is

 256
 64
 512
 65536

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Microprocessor
A number of 1-bit registers used in microprocessors to indicate certain conditions are usually referred to as

 latches
 counters
 flags
 shift registers

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Microprocessor
In microprocessor based system I/O ports are used to interface

 the I/P device only
 the O/P devices only
 all the I/O devices
 the I/O devices and memory chips

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