Answer:
CPU
Explanation:
CPU stands for Central Processing Unit, also called: Central Processor or Main Processor.
The CPU is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logic, controlling, and input/output operations specified by the instructions.
The answer is online commercial banking :)
13? 13 is most minimum ages however, I don't understand this question all that well.
