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

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Microprocessor
A high on RESET OUT signifies that

 processing can begin when this signal goes high
 all the registers and counters are being reset and this signal can be used to reset external support chip
 all the registers and counters are being reset
 all the registers of the CPU are being reset

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Microprocessor
A microprocessor is ALU

 register unit and I/O device on a single chip.
 and control unit on a single chip.
 and memory on a single chip.
 register unit and control unit on a single chip.

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