1. Name=Amanjot kaur
Roll no.=115337
Section=N2
Topic= Weaknesses And
Strengths of Computer
2. INTRODUCTION TO
COMPUTER
• COMPUTERs are machines that perform tasks or
calculations according to a set of instructions,
or programs. The first fully electronic computers,
introduced in the 1940s, were huge machines that
required teams of people to operate. Compared to
those early machines, today's computers are amazing.
Not only are they thousands of times faster, they can
fit on your desk, in your lap, or even in your pocket.
4. What can you do
with computers?
• In the workplace, many people use computers
to keep records, analyze data, do research, and
manage projects. At home, you can use
computers to find information, store pictures
and music, track finances, play games, and
communicate with others
5. WHAT YOU CAN DO WITH
COMPUTER
• You can also use your computer to connect to
the Internet, a network that links computers around
the world. Internet access is available for a monthly
fee in most urban areas, and increasingly, in less
populated areas. With Internet access, you can
communicate with people all over the world and
find a vast amount of information.
Here are some other things to do with computers:-
• The web
• E-mail
• Instant messaging
• Pictures ,movies and music
6. THE WEB
• The World Wide Web (usually called the Web, or web) is
a gigantic storehouse of information. The web is the
most popular part of the Internet, partly because it
displays most information in a visually appealing format.
Headlines, text, and pictures can be combined on a
single webpage—much like a page in a magazine—along
with sounds and animation. A website is a collection of
interconnected webpages. The web contains millions of
websites and billions of webpages.
7. E-mail
• E-mail (short for electronic mail) is a convenient
way to communicate with others. When you send
an e-mail message, it arrives almost instantly in
the recipient's e-mail inbox. You can send e-mail
to many people simultaneously, and you can
save, print, and forward e-mail to others. You can
send almost any type of file in an e-mail message,
including documents, pictures, and music files.
8. INSTANT MESSAGING
• Instant messaging is like having a real-time
conversation with another person or a group
of people. When you type and send an instant
message, the message is immediately visible
to all participants. Unlike e-mail, all
participants have to be online (connected to
the Internet) and in front of their computers
at the same time. Communicating by means of
instant messaging is called chatting.
9. PICTURES, MOVIES AND
MUSIC
• If you have a digital camera, you can move your
pictures from the camera to your computer. Then
you can print them, create slide shows, or share
them with others by e-mail or by posting them on
a website. You can also listen to music on your
computer, either by importing (transferring to your
computer) music from audio CDs or by purchasing
songs from a music website. Or, tune in to one of
the thousands of radio stations that broadcast over
the Internet. If your computer comes with a DVD
player, you can watch movies.
10. CHARACTERISTICS OF COMPUTER
• Computer technology offers fast, effective access to worldwide information
and is therefore an important educational method with rapidly expanding
universal appeal. While the cost of hardware is restrictive for many, most
educational institutions, and many workplaces and public information
centres, now have computer facilities. If your target group has access to
computer technology you may consider using this method.
• The Internet is a worldwide communications and information network
linking millions of computers around the globe. It provides access to online
information services through documents and databases and, through
electronic mail (e-mail), allows Internet users to communicate with other e-
mail users in a most cost- and time-efficient manner. The Internet is one of
the word's largest and fastest growing computer networks.
• CD-ROMs are laser discs that allow enormous amounts and variety of
information to be stored and retrieved—including text, photographs,
drawings, film, video and audio material. Their use as an educational tool is
rapidly expanding in schools, universities and industry.
11. STRENGTHS OF INTERNAL
COMPUTER PACKAGES
• can be interesting and fun
• cater for individual
learning
• are interactive
• take a discovery-based
approach.
12. Weakness of internal computer
packages
• many people have limited access
• systems breakdowns
• it can be expensive to develop
CD-ROMs
• hardware is expensive.
13. Strengths of television
and computer?
• Strength is that they can
commute information to
everyone efficiently and
effectively. It also can be a form
of entertainment or education
to everyone.
14. WEAKNESS OF TELEVISION AND
COMPUTER
• Weakness is that people misusing
the concept to commute bad and
misleading information to
everyone. Too easily accesible by
anyone at any age at anytime of
the day.
15. Strengths of Electronic
Surveys
• Cost-savings: It is less expensive to send questionnaires
online than to pay for postage or for interviewers.
• Ease of Editing/Analysis: It is easier to make changes to
questionnaire, and to copy and sort data.
• Faster Transmission Time: Questionnaires can be
delivered to recipients in seconds, rather than in days
as with traditional mail.
• Easy Use of Preletters: You may send invitations and
receive responses in a very short time and thus receive
participation level estimates.
16. STRENGTHS
• Higher Response Rate: Research shows that
response rates on private networks are higher with
electronic surveys than with paper surveys or
interviews.
• More Candid Responses: Research shows that
respondents may answer more honestly with electronic
surveys than with paper surveys or interviews.
• Potentially Quicker Response Time with
Wider Magnitude of Coverage: Due to the
speed of online networks, participants can answer in
minutes or hours, and coverage can be global.
17. WEAKNESS OF ELECTRONIC
SURVEYS
• Sample Demographic Limitations: Population
and sample limited to those with access to
computer and online network.
• Lower Levels of Confidentiality: Due to the
open nature of most online networks, it is difficult
to guarantee anonymity and confidentiality.
• Layout and Presentation issues: Constructing
the format of a computer questionnaire can be
more difficult the first few times, due to a
researcher's lack of experien
18. WEAKNESS
• Additional Orientation/Instructions: More instruction and
orientation to the computer online systems may be necessary
for respondents to complete the questionnaire.
• Potential Technical Problems with Hardware and
Software: As most of us (perhaps all of us) know all too well,
computers have a much greater likelihood of "glitches" than
oral or written forms of communication.
• Response Rate: Even though research shows that e-mail
response rates are higher, Opermann (1995) warns that most
of these studies found response rates higher only during the
first few days; thereafter, the rates were not significantly
higher.
19. STRENGTHS OF COMPUTER
• SPEED:-Computers are much faster as compared
to humans beings . A computer can perform a
task in a minute that may take days if
performed manually . A modern computer can
execute millions of instructions in one second .
• High storage capacity :-computers can store a large
amount of information in a very small space . A
CDROM of 4.7 inch diameter can store all the 33
volumes of Encyclopedia Britannica and will
still have room to store more information.
20. STRENGTHS OF
COMPUTER
• Accuracy:- Computer can perform all the
calculations and comparisons accurately provided
the hardware does not malfunction.
• Reliability:- computer are immune to tiredness and
Boredom or fatigue. Thus they are more reliable than
human beings.
• Versatility:-computers can perform repetitive jobs
efficiently they can solve labour problem or do
hazardous jobs in enviornment
21. WEAKNESS OF COMPUTER
• Lack of decision making
power :-computer cannot decide on
their own. They do not possess power
which is a great asset of human being.
• IQ zero:- computers are dumb machines
with zero IQ. They need to be told each
and every step .
