MS word

Why is Microsoft Windows called Windows?
Before the release of Microsoft Windows, Microsoft users were used to the single-task command line operating system MS-DOS. Because Microsoft names most of its products with one word, it needed a word that best described its new GUI operating system. Microsoft chose "Windows" because of the multiple windowsthat allow different tasks and programs to be run at the same time. Because you cannot trademark a common name like "Windows" it is officially known as "Microsoft Windows". The first version of Microsoft Windows was version 1.0, released in 1985.
file and folder
All the data on your hard drive consists of files and folders. The basic difference between the two is that files store data, while folders store files and other folders. The folders, often referred to as directories, are used to organize files on your computer. The folders themselves take up virtually no space on the hard drive. Files, on the other hand, can range from a few bytes to several gigabytes. They can be documents, programs, libraries, and other compilations of data.
File
A file is a collection of data stored in one unit, identified by a filename. It can be a document, picture, audio or video stream, data library, application, or other collection of data. The following is a brief description of each file type.
A collection of data or information that has a name, called the filename. Almost all information stored in a computer must be in a file. There are many different types of files: datafiles, text files, program files, directoryfiles, and so on. Different types of files store different types of information. For example, program files store programs, whereas text files store text.
Documents include text files, such as a Word documents, RTF (Rich Text Format) documents, PDFsWeb pages, and others. Pictures include JPEGs,  GIFs, BMPs, and layered image files, such as Photoshop documents (PSDs). Audio files include MP3s, AACs, WAVs, AIFs, and several others. Video files can be encoded in MPEG, MOV, WMV, or DV formats, just to name a few.
 Documents include text files, such as a Word documents, RTF (Rich Text Format) documents, PDFs, Web pages, and others. Pictures include JPEGs, GIFs, BMPs, and layered image files, such as Photoshop documents (PSDs). Audio files include MP3s, AACs, WAVs, AIFs, and several others. Video files can be encoded in MPEG, MOV, WMV, or DV formats, just to name a few.
A library file is a unit of data that is referenced by a specific program or the operating system itself. These include plugins, components, scripts, and many others. An application is a program, or executable file. Programs such as Microsoft Internet Explorer and Apple iTunes are both applications, but are also files.
Files can be opened, saved, deleted, and moved to different folders. They can also be transferred across network connections or downloaded from the Internet. A file's type can be determined by viewing the file's iconor by reading the file extension. If the file type is associated with a specific application, double-clicking the file will typically open the file within the program.
Folder and file management
. Use My Documents. For many reasons, it's smart to take advantage of My Documents feature in Microsoft Windows. To open My Documents in Windows, click Start, and then click My Documents. My Documents provides an easy way for you to store your personal documents. By using My Documents, you will be better able to: