Write short notes on the following concepts Icons, Desktop, Taskbar, Windows and Mouse

1. Write short notes on the following concepts Icons, Desktop, Taskbar, Windows and Mouse
(a) Icons: An icon is a small graphical representation of a program or files that, when clicked on, will be run or opened. For example, if you were to double-click on the My Computer icon, it would open Windows Explorer and double-clicking a document or file icon would open that document in the associated program.
(b) Desktop: A desktop is a personal computer that fits on or under a desk. They usually consist of a monitor, keyboard, mouse and either a horizontal or vertical (tower) form factor. Unlike a laptop, which is portable, a desktop computer is meant to stay at one location.
(c) Taskbar: A Taskbar is a visual device on the desktop that typically shows the user which applications (tasks) are currently active and running. Also includes icons for commonly-used utilities such as the system clock and antivirus software.
 The taskbar is a movable, concealable icon bar that is set on the very edge of the graphical user interface (GUI) desktop and serves as a launching pad for applications as well as a holder for icons indicating running programs.
(d) Windows: The window is a separate viewing area on a computer display screen in a system that allows multiple viewing areas as part of a graphical user interface. Windows are managed by a windows manager as part of a windowing system. A window can usually be resized by the user. For example, it can be stretched on any side, minimized, maximized, and closed.
(e) Mouse: A mouse refers to a small device used to point to and select items on your computer screen. Mice are of many shapes. It's small, oblong, and connected to the system unit by a long wire that resembles a tail. Some are wireless. A mouse usually has two buttons: the left button right button. Many mice also have a wheel between the two buttons, which allows you to scroll smoothly through screens of information.