Background things beyond copy and paste

Actually any program or software or anyother thing will use a temporary memory .Everyone knows how to copy and paste so I don't need to explain that thing so I am going to the topic without boring you.When you copy from one place ,actually
it will be copied to the intermediate memory called clipbookviewer ,just try to copy some content and open command prompt and type
c:\>clipbrd
and press enter key on the keyboard
and you can see the clipbookviewer ,that is the temporary memory where your contents that you copied are stored.(It is also called as clipboard )
Hope this will be an informative one