Another way, when the hard drive icon and name is visible on the desktop, is to
single-click the icon to highlight it, then use Get Info from the main File dropdown
menu in the Finder. This will open an information box on the selected item.
Or highlight item, and use keyboard Command + i keys to expose the information box.
{If the hard drive icon and name, usually Macintosh HD, is not visible on the desktop, you
could click on Finder in the main desktop window and view in the drop-down menu, the
Finder Preferences, and see how you can make the hard drive icon appear on desktop.}
Another way around most Mac OS X, is to choose 'About this Mac' from within the Apple
menu under , and then use the "More Info" box that will open System Profiler.
Most everything about the computer, both hardware and software, is within this area.
Usually your Help Viewer in the computer (see Help) in the main Finder window can
be used to answer these basic questions when offline, as part of the built-in help.
Or a search engine and carefully chosen words to limit random results, online.
Good luck & happy computing! 🙂