Microprocessor
Which of the following pair of gates can form a latch?

A pair of cross coupled NAND
A pair of cross copled AND
A pair of cross coupled OR
A cross coupled NAND/OR

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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
 all the registers of the CPU are being reset
 all the registers and counters are being reset and this signal can be used to reset external support chip

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Microprocessor
When RET instruction is executed by any subroutine then

 the top of the stack will be popped out and assigned to the PC.
 without any operation, the calling program would resume from instruction immediately following the call instruction and also the PC will be incremented after the execution of the instruction.
 the PC will be incremented after the execution of the instruction.
 without any operation, the calling program would resume from instruction immediately following the call instruction.

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