Application opened in ms word what is process going on when we hit tab key as the cursor moving a bit?

What happens when an application is opened as like an MS Word and u press Tab key then the response seen

is the cursor moving a bit on the Word document.So,what r the processes (no jargon,give the proper technical terms) behind this whole thing happening?Application opened in ms word what is process going on when we hit tab key as the cursor moving a bit?
The tab key is used to make the cursor go to wherever you want on the line. This eliminates using multiple spaces, and prevents uneven spacing. Read the Word help, there are settings available to control how far each press goes. It is very useful if you regularly type similar letters or other documents, you can set up tab spacing in the template for the document and each time you use it the documents will all space the same.Application opened in ms word what is process going on when we hit tab key as the cursor moving a bit?
it is one of the bug in msword. try using openoffice. it is same as msoffice. it is more than that. one more thing it is totally free