Question

write about the poling method.​

Answer 1

Answer:

Poling is a metallurgical method employed in the purification of copper which contains copper oxide as an impurity and also in the purification of tin ("Sn") which contains tin oxide (stannic oxide or "SnO2") as an impurity.

Answer 2

Answer:

Polling is the process where the computer or controlling device waits for an external device to check for its readiness or state, often with low-level hardware. ... Polling also refers to the situation where a device is repeatedly checked for readiness, and if it is not, the computer returns to a different task.