Word processors are computer programs whose main function is the processing of text based documents. They are used to encode, edit and even print text documents.
Word processors create documents in digital format. Instead of typing onto a page, the information is stored in computer memory. Once text has been entered, formatting changes can be applied universally using a few simple steps, giving the user maximum flexibility.
Since the word processor stores the document electronically, it can be output into a variety of formats. In addition to simply printing finished documents, the electronic version can be shared by email or other electronic transfer mechanisms. Most word processors now give the option of outputting a document to a PDF format, which allows nearly anyone to open it, and can prevent recipients from altering the finished document.