When we execute any application or program in Windows, a window for that application or program opens. The window contents differ from program to program but the interface of all windows is same. All windows have following common components:
Title bar is the horizontal bar across the top of a window and display the name of the program. The window can be moved anywhere on the screen by clicking left mouse button on the title bar and holding down and dragging the mouse to the desired location on the screen. Double click on title bar of a window will maximize/restore down the window.
The color of the title bar of an active window is bright and it is dull or grey when the window is inactive.
A click on the box with '-' sign minimizes the window but keeps it running in the memory.
A click on thebox with two small overlapping squares restores down the window (reduces its dimensions).
A click on the box with one square maximizes the window.
A click on thebox with 'x' sign closes that window and ends that window's task.
When a window has been restored down, it can be resized manually by bringing the mouse to the edges of the window until the mouse cursor turns into a double headed arrow and then holding the mouse and dragging the edges of the window to the desired size. Resizing from the bottom right corner of the window adjusts width and height of the windowsimultaneously.
Menu bar is a located below the Title bar and contains Menu items for the program/application. Each menu item in Menu bar has a hot letter, which is underlined. These menu items can be opened by mouse click or by pressing 'Alt and the hot letter (F in case of File)'.
Toolbars are by default located below menubar and contain icons for tools for the program/application. The program/applications usually have many toolbars and we can add or remove toolbars from the window by using menu item 'View >> Toolbars' in Menu bar.
If the size of a window is smaller and unable to occupy the content of the work area 'Horizontal Scroll bar' and/ or 'Vertical Scroll bar' will appear to scroll and view the contents of the work area by dragging the scroller with mouse or by using cursor keys.