A lot of people use the term "Memory" when talking about the hard drive. It is a common error that I am here to help you with.

So what is ROM and what is RAM?

ROM or Read Only Memory is where all of your programs are stored till needed; this is the hard drive. Programs stay on the ROM until you delete them.

RAM or Random Access Memory is where all the programs that are currently being used are held. The RAM is cleared when you lose power or you shut down you computer.

Here is an example,
Think of the ROM as a filing cabinet, and think of RAM as a desk or table. When you need to use something from the ROM or the Filing Cabinet you take it out and put it on the RAM or the Desk and begin to work.

If you lose power to your computer, it is all lost. Think of a door opening and a strong gust of wind blows everything away before you put it up.

I hope I was able to help clear these things up.