Microprocessor
The first machine cycle of an instruction is always

 A fetch cycle
 A memory write cycle
 An I/O read cycle
 A memory read cycle

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

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

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