The desktop is the main screen where programs and files are opened. Icons represent programs and files, which can be arranged on the desktop. Programs perform tasks when run, files contain information, and folders store files. The taskbar at the bottom provides quick access to programs, files, and settings. Mouse functions include clicking, dragging, and scrolling to interact with items on the desktop. Windows contain title bars, menus, buttons, and scroll bars and can be moved, resized, minimized, maximized, and switched between using the mouse and taskbar.

2. The
desktop

3. Desktop
Is the main screen that you can see after turning
on your computer and longing to Windows.
Whenever you open a program, file, or folder, it
appears on the desktop in a box called a window.
You can also put anything on the desktop such as
a file, folder, gadget, or shortcut to software
applications.

5. ICON
These are small objects that denote
programs, files, and folders. They
are stacked by windows in columns
usually on the left side of the desktop.
However, you can arrange them in
any way you want.

7. PROGRA
M
Is an application that consists of a set of
instructions that the computer uses to perform a
task. An example of a program is Microsoft office
word 2007 which is used to create and edit
documents.

8. FILE
Is an item that contains information such as text,
images, audio or videos.

9. FOLDER
Is a container used to store files.

10. DESKTOP
BACKGROUND
This refers to the picture setting of the desktop. It is
sometimes called desktop wallpaper. It can be
customized to suit your own setting.

11. TASK
BAR
It is the long horizontal bar at the bottom of the
screen. It has three main sections:
The start button opens the start menu that
provides a list of programs folders and settings.

12. TASK
BAR
The middle section shows you which programs
and files you have opened and allows you to
quickly switch between them.
The notification area includes and icons that
communicate the status of certain programs and
computer settings. It is sometimes called the
status area.

16. The mouse

17. A mouse is a pointing device that functions by
detecting two-dimensional motion relative to its
supporting surface.

18. MOUSE
TYPES
There are various types of Mouse now available on
the market. New designs are being developed as
technology advances. Let us start looking at the
following mouse and find out what is common to
them.

19. Mechanical
Mouse
This mouse contains a
metal or rubber ball
under it, when rolled, the
sensor detects this
motion and moves the
mouse pointer on the
screen in the same
direction. It normally has
two buttons, the left, and
the right buttons.

20. Optic Mouse
The optical mouse uses a
Light Emitting Diode
(LED) which is frequently
red in color. It normally
has a scroll wheel
between its two buttons.

21. Laser Mouse
This is actually a type of
optical mouse that uses
a laser beam. It has
greater tracking ability
than any other type of
mouse. It normally has
more than two buttons.

22. Mouse Buttons
Most mouse devices now come with more than 2 buttons.
But typically, it only has two buttons: the left and the right.
The left button is used to select an item (such as a folder,
file, or command button) or open a menu while the right
button is used to pop up or display a menu.

23. Mouse Buttons

24. Mouse
Buttons
• Your mouse should be positioned at elbow level and your
upper arms and fingers should be kept relaxed.
• Do not hold your mouse tightly.
• Click the mouse button lightly.

25. Appearances of a mouse
Pointer
• The arrow that you see on your desktop is called the
mouse pointer or simply, pointer. The appearance,
however, changes depending on what you are pointing to
and the setting of your mouse as well. Below are the
three common appearances of a mouse pointer.

26. Appearances of a mouse
Pointer
This is the appearance of your pointer if you are
pointing to an icon, button, or an empty space in the desktop
or window.
you will see an I-beam if you are pointing to text in a
document, textbox, or any location that allows you to enter
text.
A pointer hand will appear if you are pointing to a link.

27. Mouse Operations
 Clicking –the process of pressing and releasing a
button of the mouse. It can be any of the following:
* Single click is the method of pressing the left
button of the mouse called the main button.
* Right Click is the method of pressing the right
button of the mouse called the secondary button.
* Double Click is the method of pressing the left
button of the mouse twice in quick succession.

28. Mouse Operations
 Dragging – is the process and holding the left
button of the mouse while moving it in a particular
direction. If you run out of room to move your mouse
on your desk or mouse pad, just pick up the mouse
and bring it back closer to you.
 Chording –a mouse operation that involves the
combination of clicking and either pressing a
keyboard letter or rolling the mouse wheel.

30. Parts of a
Typical
Window

31. Parts of a Typical
Window
Windows actually vary in content but they all have
parts in common. Typically a window has the following
parts as shown.

33. Parts of a Typical
Window
Title Bar. It displays the program name and
the name of the documents.
Menu Bar. It contains items to choose from
when working in a program.
Minimize Button. It shrinks the window to a
button on the taskbar. To reopen it, just click
its button on the taskbar.

34. Parts of a Typical
Window
Maximize Button. This button enlarges the
program window filling the entire screen. As
you click this button, it changes to the
Restore Down Button which is used to bring
back the original size of the window.
Close Button. It exists the application
window

35. Parts of a Typical
Window
Scroll Bar. This is used to scroll the contents
of a window so that information that is
currently out of view can be seen.
Border. This is what you drag when you went
to resize the window.

36. Accessing a Program Using the
Mouse
Microsoft Office 2019 consists of several
application programs; hence it was called an
integrated Software Suite. Three of the most
popular application programs are Microsoft
word, Microsoft Excel and Microsoft
PowerPoint. There are also other programs
installed on your computer aside from these.

37. Accessing a Program Using the
Mouse
All the programs installed on a computer can
be launched using the start button.
1. Click the start button.
2. Click all programs.
3. Click a particular folder where the program
is located.
4. Click the program.

38. Accessing a Program Using the
Mouse
In case the program has a shortcut icon on the
desktop, you can access it by double-clicking
the icon.

39. Working with
Windows
Aside from the minimize and maximize buttons
that hide the windows and enlarge them to fill
the screen respectively, you can also work
with windows using the following steps:

40. Moving a
window
Point to the title bar, and then drag the window
using the arrow pointer to the location that you
want. With windows 2019, you can make use
of the snap and shake features where you
can arrange and resize windows using simple
mouse movements.

41. Snap
This means dragging the title bar of the
window to any of the following directions on
the desktop:
• Left – the window will be aligned to the left.
• Right – the window will be aligned to the
right.
• Top – the window will be maximized.

42. Shak
e
This means to click the title bar of the window
you want to keep open then shake (dragging
back and forth) so that all other open windows
will be minimized.

43. Resizing a
Window
Point to any of the border or corner of the
window until a double-headed arrow
appears, then drag the border or corner until
the desired size has been reached.

44. Switching Between
Windows
To switch to another window, just click the
taskbar button of the open program. Pointing
to the taskbar button will give you a thumbnail-
sized preview of the window.

45. Switching Between
Windows