(i) The Title Bar and control buttons - The title bar will display the name of the program and the name of the document that has been currently opened and also contains control buttons like Minimize, MaximizelRestore and Close buttons.
(ii) The Menu bar - The menu bar is seen under the title bar. Menus in the menu bar can be accessed through shortcuts involving the Alt key and the mnemonic letter that appears underlined in the menu title. Additionally, pressing Alt or F 10 brings the focus on the first menu of the menu bar.

(iii) In Windows 7, in the absence of the menu bar, you have to click organize and in the sub menu list, click the layout option from it and then select the desired item from that list.
(iv) The Workspace: The Workspace is the area in the document window where you enter or type the text of document. It is the point of insertion for typing within the document.
(v) The Scroll bars: A scrollbar is an interaction technique in which continuous text, pictures, or any other content can be scrolled in a predetermined direction (up, down, left, or right) on a computer display so that all contents can be viewed, even if only a fraction of the content can be seen on a device's screen at a time. Refer figure 5.10 to view the Scroll bars.
(vi) Corners and borders: The corners and borders of the windows help to drag and hence help to resize the Windows. The mouse cursor changes to a double arrow when positioned over a border or a corner. Drag the border or corner in the direction indicated by the double arrow to the desired shape.
(a) The corners can be resized diagonally by dragging it across any of the corners. It will resize the window on all the sides simultaneously.
(b) On the other hand, the borders will let you to resize the window by either dragging it in left side, right side, from the top or from the bottom of the window.
(c) It will change the size of the window at one side only depending on the side in which the dragging is made.

Application Icons:
(i) These icons are representing Software package's logo. Double-click over this icon, the related application gets invoked.
(ii) Shortcut Icons: These icons point to a particular application or file or folder. By double clicking over them the related application or file or folder will open. This represents the shortcut form to open a particular application.
(iii) Document Icons: Active document window which is a window within an application window is called as the document icon.

The functions of Windows operating system which allows you to do are:
(i) Access applications (programs) on computer (word processing, games, spread sheets, calculators and so on).
(ii) Load any new programs on to the computer.
(iii) Manage hardware such as printers, scanners, mouse, digital cameras etc.
(iv) Manage how files are stored on your computer.
(v) Change computer settings such as colour schemes, screen savers and the resolution of monitor.

The important functions of an operating System.
(i) Memory Management
(ii) Processor Management
(iii) Device Management
(iv) File Management
(v) Security
(vi) Control over system performance
(vii) Job accounting
(viii) Error detecting aids
(ix) Coordination between other software and users