Microprocessor
In an intel 8085A, which is the first machine cycle of an instruction?

 A memory write cycle
 A memory read cycle
 An op-code fetch cycle
 An I/O read cycle

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Microprocessor
Which of the following statements for intel 8085 is correct?

 PC specifies the address of the instruction to be executed
 PC specifies the number of instructions executed so far
 Program Counter (PC) specifies the address of the instruction last executed
 PC specifies the address of the instruction being executed

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