Microprocessor
A high on RESET OUT signifies that

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

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Microprocessor
When referring to instruction words, a mnemonic is

 shorthand for machine language.
 a short abbreviation for the operand address.
 a short abbreviation for the operation to be performed.
 a short abbreviation for the data word stored at the operand address.

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Microprocessor
PUSH B instruction in 8085 microprocessor causes

 the contents of registers B & C to be transferred in the stack and and the registers get cleared
 the contents of register B & C to be copied in the stack
 registers B & C to be cleared
 the contents of register B only to be copied in the stack

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