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Microprocessor

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

 RST 7
 TRAP
 INTR
 RST 5.5

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Microprocessor
If m is a power of 2, the number of select lines required for an m-input mux is:

2^m
log2 (m)
m
2*m

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Microprocessor
A microprocessor without the interrupt facility

 is not useful for process control system
 cannot be used for DMA operation
 cannot be interfaced with any I/O devices
 is best suited for process control system

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Microprocessor
Using one 8259 IC is equivalent to providing …………. INTR pins on 8085

 16
 18
 12
 8

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Microprocessor
The instruction set of a microprocessor

 cannot be changed by the user
 is specified by the manufacturers
 is stored inside the microprocessor
 is specified by the user

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Microprocessor
Which one of the following microprocessor is not an 8-bit microprocessor

 8085
 6502
 Z-80
 68000

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