Most modern computer programs use special icons on their toolbar buttons to provide quick and easy access to the most commonly used functions. The image below shows examples of some of them.

Notes:

The Save As button allows the current document to be saved with a different filename.

Most modern computers provide something called the clipboard which is a place for storing limited quantities of information, (data), from one or more open documents.

The Cut Selection button removes the selected content from the current document after it has been copied to the clipboard. The Copy button leaves the selected content unaffected.

The Paste button inserts the current clipboard contents into the current document at the current cursor position.

Each piece of data copied (or cut) to the clipboard normally overwrites it's previous contents. (However, some clipboards do allow multiple pieces to be stored and selected when pasting.)