Strengths and Limitations of Computers
· 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 words 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.
· STRENGTHS OF
INTERNAL COMPUTER PACKAGES• can be interesting and fun• cater for individual
learning• are interactive• take a discovery-based approach.
· Weakness of internal
computer packages• many people have limited access• systems breakdowns• it can
be expensive to develop CD-ROMs• hardware is expensive.
· 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.
· 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.
· 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.
· 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.
· 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 researchers lack of experien
· 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.
· 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.
· 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
· 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.Source: http://www.slideshare.net/Amanjot_kaur/weakness-and-strengths-of-computer
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