What steps are involved in the interrupthandling

Interrupt handling-It is a method that kernel runs for a particular interrupt request.

Steps-

The Interrupt handler accept the requests from the  I/O devices and check whether the requests is of the higher priority than the ongoing request serviced by CPU. Interrupt is issued to the CPU based on priorities,if the request is of higher priority than ongoing service then Interrupt will be issued the ongoing service will pause and the new request will be processed. If new request has less priority then no interrupt will be issued, New request will wait for CPU to free.    

it most likely is charging, however when using a hot spot, it drains straight through battery life.

the today function returns a valid value without any arguments.

the today function returns the current date based on the computer's date setting and formatted as a date. today takes no parameters, but requires that you use empty parentheses