Answer:
A set of instructions, written by a programmer, that is used by computers to perform tasks
What the hell is the point of this, just to waist people's time?
Physical storage is like your Hard Drive, Virtual is what is called the Cloud. Hard drives are able to pull information directly from inside the computer while the cloud has to do over the internet.
Answer:
To calculate it, you have to break it apart. Sorry for the bad writing but after you break it apart, you multiply the smaller squares. Then with all of the smaller areas, add them together for the final answer which in this case is 456.