Windows OS

2.  Windows is a series of operating
systems developed by Microsoft.
 Each version of Windows includes a
graphical user interface, with a desktop that
allows users to view files and folders
in windows.
 For the past two decades, Windows has
been the most widely used operating
system for personal computers PCs.

3.  The original Windows 1 was released in
November 1985 and was Microsoft's first true
attempt at a graphical user interface in 16-bit.
Development was spearheaded by Microsoft
founder Bill Gates and ran on top of MS-DOS,
which relied on command-line input.

5.  TaskBar
 SystemTray

8. Window screen is divided into two parts; the upper layer which contains several icons and
the lower layer called the status /bar which contain the: start button, task bar and time.
Status Bar: This is the lower part of the windows. It consists’ of the start button, task bar
and time.
Start Button: it contain everything needed to work with windows, start icon of the
windows consists of several options in form of sub-menu. Hence, when you click on
start button, a sup-menu appears as follows:
(i) Program: it displays the list of software available in the windows environment for
the user to utilize.
(ii) Document: it displays the list of documents that have been opened previously.
(iii) Setting: it list out all the computer components which their setting can be changed
.e.g. setting date and time, changing window screen etc.
(iv) Find: it is used to find and locate a particular file, folder and e-mail messages.
(v) Help: it shows the steps involve in performing a particular task. It equally serves as
a tutor.

9. (vi) Run: it is mainly used to run or execute Ms-command and other
application
packages.
(vii) Shut Down: it is used to shut down or re-start the computer. It should
be noted that the system must be properly shut down before switching
off the system.
Task Bar -Each time an operation is performed, a button representing that
window appears on the task bar. To switch from the window to another
click on the button for the window you want in the task bar.
Notification Area
It shows at the extreme end of the status bar. It displays the current time.
Folder -A folder is a directory, which stores files and other folders. Or a
folder is a directory through which users can access files and other
folders.

10. A window screen always contains various items or ICON depending on the window
version.
Major icons and other additional icons are
(i) My computer Icon: This is a container for disk drives. My computer icon displays
window with Icons representing object in the computer system. Such as folder, files,
disk-drive.
(ii) Internet Explorer: This is a shortcut for launching the internet explorer program,
which is web browser. A web browser is a software program for navigating,
WWW(World Wide Web).
(iii) Network Neighbourhood: Network neighbourhood icon serves as container for
network resources of other, computer it might include items such as; disk drive,
printer and CD-ROMS.
(iv) Network: A network is a collection of several computer connected together with the
aim of sharing the same resources and component e.g. printer.
(v) Recycle Bin: This is a computer object for files that are no longer needed the
computer or, this is a temporary storage location where all files are kept. One can
retrieve such file if deleted by error.

13. An icon is an image or picture representing a particular function on the window’s
screen. It is like a command or instruction to perform a particular task.

14.  Control Panel
 Device Manager
 Disk Cleanup
 File Explorer
 Microsoft Paint
 Notepad & etc….

15.  The Control Panel is a component of
MicrosoftWindows that provides the ability
to view and change system settings. It
consists of a set of applets that include
adding or removing hardware and software,
controlling user accounts, changing
accessibility options, and accessing
networking settings.

17.  The Device Manager lists the
hardware devices installed in a
computer. It allows users to see
what hardware is installed, view
and update hardware drivers,
and uninstall hardware through
the Device Manager.
 You can open the Device
Manager from the Power User
Tasks Menu (Win+X, then
press M).

18.  The Disk Cleanup utility
helps increase free disk space
on your computer by
removing temporary or
unnecessary files. Running
Disk Cleanup can help
improve your computer's
performance, and create
additional space to store
your downloads, documents,
and programs.
 You can access Disk Cleanup
from the File Explorer.
 Press Win+E to open an
Explorer window.
 On the left side of the
window, find This PC or My
Computer, and select it by
clicking once.
 Then, on the right side, right-
click any disk drive on your
computer (C:, for example).
 Select Properties.
 Under the General tab,
click Disk Cleanup.

20.  The File Explorer, also called
Windows Explorer, provides you
with a view of the files and folders
on the computer. You can browse
the contents of your SSD, hard drive,
and attached removable disks. You
can search for files and folders, and
open, rename, or delete them from
the File Explorer.

To open a new File Explorer
window, press Win+E. You can open
more than one Explorer window at
the same time, which helps with
viewing multiple folders at once, or
copying/moving files from one to
the other.

21.  Microsoft Paint Included in Windows since November 1985, Microsoft
Paint is a simple image editor that you can use to create, view, and edit digital
images. It provides basic functionality to draw and paint pictures, resize and
rotate photographs, and save pictures as different file types.

22.  Notepad is a simple text editor. You can use it to create, view, and edit text files.
For instance, you can use Notepad to write a batch file, or a web page written
in HTML.

23. 1. Windows 1.0- 2.0 (1985-1992). Window 1.0 allowed users to point and click to access
the windows. Window 2.0 added icons, keyboard shortcuts and improved graphics.
2. Windows 3.0-3.1 (1990-1994). Support better icons and program manager (1st version
of “look and feel” screen of Microsoft windows).
3. Windows 95 (August 1995). It runs faster and has ability to automatically delete and
configure installed hardware (plug and play).
4. Windows 98 (June 1998). It offers supports for new technology FAT32, AGP, MMX,
USB, DVD. It is an active desktop which integrates the web browser (internet
Explorer).
5. Windows ME- Millennium Edition (September 2000). Booting is in Dos option.
6. Windows NT 3.1-4.0 (1993-1996). It supports pre-emptive multi tasking. They are
Windows NT and Windows NT SERVER.
7. Windows 2000 or W2k. (February 2000). It is an operating system for business desktop
and laptop systems to run software applications.
8. Windows XP (October 2001). It has a better look and feel. There are two versions Home
and professional.
9. Windows Vista (November 2006). It offered an advancement in reliability, security
and ease of deployment & etc…

24.  Speed.
 Compatibility.
 Lower Hardware Requirements.
 Search and Organization.
 Safety and Security.
 Interface and Desktop.
 Taskbar/Start menu.