Clipboard.

The clipboard is used by typically selecting some object or text and copying it to the clipboard using Ctrl-C, or cutting it to the clipboard using Ctrl-X. Next you can move to another application and pasted the object or text into it by using Ctrl-V. Conceptually, the clipboard is a memory region which holds on to a copy of the object or text that was copied or cut. This memory region will continue to exist until it is replaced by another clipboard copy or cut operation, either in the same application or in another application; there is conceptually only one single memory region serving all applications on the desktop.