What is the advantage of processor affinity on smp computers ?

Which option allows you to view slides on the full computer screen?

Use a physical stopwatch to record the length of time it takes to run the program. calculate the difference obtained by calls to the method system.currenttimemillis() just before the start of the algorithm and just after the end of the algorithm. calculate the difference obtained by calls to the method system.currenttimemillis() at the start of the program and at the end of the program so that the elapsed time includes the display of the result. use the value returned by the method system.currenttimemillis() just after the end of the algorithm as the elapsed time.

Hazel has just finished adding pictures to her holiday newsletter. she decides to crop an image. what is cropping an image?