WP has a adequate discussion of paging, which I think I understand.. However I am confused by the articles repeated use of the term Page Frame.I thought frames and pages were different things.  Could someone please clarify the difference.
What is the difference between a 'page' or memory and a 'frame' of memory?
memory management
Short version: page means virtual page (i.e. a chunk of virtual address space) and page frame means physical page (i.e. a chunk of physical memory).That's it, pretty much. It's important to keep the two concepts distinct because at any given time, a page may not be backed by a page frame (it could be a zero-fill page which hasn't been accessed, or paged out to secondary memory), and a page frame may back multiple pages (sometimes in different address spaces, e.g. shared memory or memory-mapped files).