This document is a webquest that guides students through learning about computer output devices. It begins with an introductory story about a grandmother doing research on a computer but not knowing how to access the information in a tangible form. The webquest then outlines the task of helping the grandmother understand output devices, identifies different types, and categorizes them as either hardcopy or softcopy. Students work through the process of researching output devices in groups and presenting their findings. They are evaluated based on the authenticity of their research and the creativity of their presentation.

1. GO TO
HOME PAGE

2. HOME
CLICK ON ANY OF THE LINKS BELOW TO EXPLORE THE CATEGORIES OF THIS WEBQUEST
WELCOME
EVALUATION
CONCLUSION
INTRODUCTION
PROCESS
AND
RESOURCES
BIBLIOGRAPHY
TASK
TEACHERS
PAGE

3. WELCOME
Thank you for your interest in coming to class,
and thank you for being early and fully
Prepared. I urge your full attention,
participation and support in our class discussion
and activities.
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4. INTRODUCTION
Lets read
My poor little grandmother have been around
the computer for hours. She has been typing and
researching but guess what!! she has no idea of
how to get the material in a tangible
form. Oh no!!! my grandma is getting so irritated.
Thanks to the use of output devices her day will
be saved. Let us tell grandma what output
devices are, the different types and how they can
be categorized to get her information on
tangible materials.
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5. TASK
You are required to help your grandmother to
fully understand what is meant by the term
output devices, identify for her the types of
output devices used on a daily basis and
categorize the different types into hardcopy
and softcopy.
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6. PROCESS/RESOURCES
In your groups you are required to do the
following:
Procedure 1: In your groups you are both
required to look at the definition of output
device.
Procedure 2: Each member of the group is
required to choose a type of out put device
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7. and analyze what it is and see which
category of hardcopy or softcopy it fits.
Procedure 3: You are required to make your own
notes for further references.
Procedure 4: At the end of your research, the
different groups will be asked to present to the
class their findings in any creative way of their
choice.
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8. Procedure 5: click on this link to access a
resource sheet with the definition, types, and
the categories of output devices.
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9. Output devices are pieces of computer hardware
that allow a computer system to communicate
information to a user or another system. This
information can be in any form, and includes
sound, images, and even tactile experiences.
Output devices can usually only be used to send
data from the computer; items called input
devices allow users and other systems to send
data to the computer. Output devices of
computer are types

10. of peripheral hardware connected to the
computer either using cables or over a wireless
network. An output given by the computer can
be in the form of a display on the screen or a
printed document or a song that is played.
Immaterial of whether you have desktop
computers, laptop computers or
supercomputers, you will require at least one
output device.

11. Monitor
A monitor is also called video display terminal
(VDT). The users can view the visual display of the
processed data on the monitor. Computer
monitors come in a variety of screen sizes and not
to forget, visual resolutions. All monitors have a
video card, which processes the data into images,
to be eventually displayed. Cathode Ray Tube
(CRT) and flat panel displays are the two types of
monitors

12. CRTs are cheaper, and have good viewing
angle. They are also bulkier and consume more
power. On the other hand, the flat panel
displays have no magnetic interference and
lighter. They are also costlier.
Computer Display (Monitors)
A computer display is also called a display
screen or video display terminal (VDT). A
monitor is a screen used to display the

13. output. Images are represented on monitors by
individual dots called pixels. A pixel is the
smallest unit on the screen that can be turned on
and off or made different shades. The density of
the dots determines the clarity of the images,
the resolution.

14. Screen resolution: This is the degree of
sharpness of a displayed character or image.
The screen resolution is usually expressed as
the number of columns by the number rows. A
1024x768 resolution means that it has 1024 dots
in a line and 768 lines. A smaller screen looks
sharper on the same resolution. Another
measure of display resolution is a dot pitch.

15. Interlaced/Non-interlaced: An interlaced
technique refreshes the lines of the screen by
exposing all odd lines first then all even lines
next. A non-interlaced technology that is
developed later refreshes all the lines on the
screen form top to bottom. The non- interlaced
method gives more stable video display than
interlaced method. It also requires twice as much
signal information as interlaced technology.

16. There are two forms of display: cathode-ray
tubes (CRTs) and flat-panel display.
 Cathode Ray Tubes (CRT)
A CRT is a vacuum tube used as a display screen
for a computer output device. Although the CRT
means only a tube, it usually refers to all
monitors. IBM and IBM compatible
microcomputers operate two modes unlike
Macintosh based entirely on graphics mode.

17. They are a text mode and a graphics mode.
Application programs switch computers into
appropriate display mode.
 Flat Panel Displays
Portable computers such as a lap top use flat
panel displays, because they are more compact
and consume less power than CRTs. Portable
computers use several kinds of flat panel
screens:

18. EVALUATION
Your performance will be evaluated based on
how authentic your research is and how
creative you deliver the content to the rest of
the class.
Rubric:
Students collaboration 3marks
Content 5marks
Creativity 3marks
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19. CONCLUSION
Based on the WebQuest that you have read,
please copy and complete the following
questions in your note books. This will assist
me in determining how much you have grasped
or understand output devices.
 What is an output device?
 List three (3) types of output devices.
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20.  Output devices provides either _________
output or _________ output.
 List one output device that produce hardcopy
and one that produce softcopy.
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21. TEACHERS PAGE
Title: "An Output Devices WebQuest"
Author: Melecia Facey
Contact: meleciafacey@yahoo.com
Course: Information Technology
Topic: This WebQuest can be used in any
introduction to computer class. It was designed
for middle/high school students to be used in
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22. conjunction with teaching the fundamentals of
computer hardware and software devices.
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23. BIBLIOGRAPHY
http://teachlogy.wordpress.com/lesson/Outputdevices/group discussion
http://www.teachict.com/gcse_computing/ocr/
212_computing_hardware/output_devices/quiz
/invaders_output.htm
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24. CREDITS
All images on the WebQuest were
obtained at http://google.com/images.
Director
Kereen Tatham
Head of Department
Isaac Onywere
Presenter
Melecia Facey
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