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.
Answer:
The climate regions of the central and south america can be divided into four distinct regions which are tropical, arid, dry and cold climatic zones.
Explanation:
The tropical climate zones of the region produce both rain forests and the tree-dotted grasslands known as savannas. Rain forests are abundant in Central America, the Caribbean, and South America. Savannas are found in South America. Central America has an overall humid, tropical climate with distinct dry and rainy seasons throughout the region.
However, the weather can vary from country to country, and some countries have multiple climate zones. Central America is the isthmus that connects North America to South America. An isthmus is 'a narrow strip of land surrounded by sea which connects two larger landmasses'. South America can be divided into four major climatic regions—tropical, temperate, arid, and cold. Savanna grassy lands inn south america experiences high temperature but receives wet precipitation.
Explanation:
Answer:
March 4, 1829. Jackson Inaugurated.
April 13, 1830. Tensions between Jackson and Calhoun.
May 26, 1830. Indian Removal Act.
May 27, 1830. Jackson vetoes Maysville Road bill.
April 1, 1831. Peggy Eaton Affair.
July 4, 1831. French spoliation claims.
July 10, 1832. Jackson opposes Second Bank of the United States.
Answer:
The Spanish retreated farther to the south to what is
now Florida.
Explanation:
