Microprocessor
A microprocessor without the interrupt facility

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

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Microprocessor
How can we make any bit of a register “0”?

 OR that bit with “1” and remaining bits with “0”.
 AND that bit with “1” and remaining bits with “0”.
 OR that bit with “0” and remaining bits with “1”.
 AND that bit with “0” and remaining bits with “1”.

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Microprocessor
Which of the following is not true during the execution of an interrupt service routine, which does not contain any EI instructions

 the microprocessor cannot be interrupted by any interrupt
 all interrupts except non-maskable interrupt are disabled
 the microprocessor cannot be interrupted by any mask able interrupt
 the microprocessor can be interrupted by a non-mask able interrupt

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