On June 12, 1812, the United States declared war on Great as a result of numerous disputes between the two countries. The British continuously engaged in impressment and forced US citizens to serve in the Royal Navy. The British also attacked the USS Chesapeake and this nearly caused a war two year earlier. Additionally, disputes continued with Great Britain over the Northwest Territories and the border with Canada. Finally, Great Britain's blockade of France during the Napoleonic Wars served as a constant source of conflict with the United States.
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Answer:polling and interrupt
Explanation: polling is a protocol in which the CPU constantly checked if a device request an important attention based on a request. The polling process unit constantly scans the device. Example of polling is when a parallel printer port is pulled to check whether it is ready for another character which involves examining as little as one bit of a byte.
interrupt is a mechanism whereby a device notifies a CPU that it requires a response based on a request. The CPU gets an interrupt signal via an interrupt request line allowing the CPU to spot it's current process and give priority to the interrupt request at that point in time. Example of interrupt is pressing a key on a keyboard which in turn triggers a specific interrupt handler.
