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

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

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Microprocessor
The interrupt facility is provided in microprocessor to

 stop the microprocessor when it starts malfunctioning
 keep a control on the working of the microprocessor
 change the sequence of the instructions being executed
 stop the microprocessor when desired

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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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