8 UNIT 1 Computer Users
'\JI'.l'Ai'--'(;.-' v.s-:> of devices that use
'computers chip',
2 What uses of handheld computers are mentioned in the text?
What are the benefits of using computers with the following items?
a Security systems
b Cars
c Phones
4 What smart devices are mentioned in the
text?
5 What are smart cards used for?
6 What are the advantages of multimedia? 7 What can medicai expert systems do?
8 How can computers help the disabled?
9 What types of computing systems are made
available to people in remote locations using electronic classrooms or boardrooms? What aspects of computing can people power determine?
Computers Ma!\2 the VVorld
alter and Smarter
The ability of tiny computing devices to control complex operations has transformed the way many tasks are performed, ranging from scientific research to producing consumer products. Tiny 'computers on a chip' are used in medical equipment, home appliances, cars and toys. Workers use handheld computing devices to collect data at a customer site, to generate forms, to control
to inventory, and to serve as desktop organisers.
Not only is computing equipment getting smaller, it is getting more sophisticated. Computers are part of many machines and devices that once required continual human
15 supervision and control. Today, computers in security systems result in safer environments, computers in cars improve energy efficiency, and computers in phones provide features such as call forwarding, call monitoring, and
zo call answering.
These smart machines are designed to take over some of the basic tasks previously performed by people; by so doing, they make life a little easier and a little more pleasant. Smart cards store vital information such as health records, drivers' licenses, bank balances, and 50 on. Smart phones, cars, and appliances with built in computers can be programmed to better meet individual needs. A smart house has a built-in monitoring system that can turn lights on and off, open and close windows, operate the oven, and more.
With small computing devices available for performing smart tasks like cooking dinner, programming the DVD recorder, and controlling the flow of information in an organization, people are able to spend more time doing what they often do best - being creative. Computers
'1(1 can help people work more creatively.
Multimedia systems are known for their educational and entertainment value, which we call 'edutainment'. Multimedia combines
text with sound, video, animation, and graphics, which greatly enhances the interaction between user and machine and can make information more interesting and appealing to people. Expert systems software enables computers to 'think' like experts. Medical diagnosis expert systems, for example, can help doctors pinpoint a patient's illness, suggest further tests, and prescribe appropriate drugs.
Connectivity enables computers and software that might otherwise be incompatible to communicate and to share resources. Now that computers are proliferating in many areas and networks are available for people to access data and communicate with others, personal computers are becoming interpersonal PCs. They have the potential to significantly improve the way we relate to each other. Many people today telecommute that is, use their computers to stay in touch with the office while they are working at home. With the proper tools, hospital staff can get a diagnosis from a medical expert hundreds or thousands of miles away.
Similarly, the disabled can communicate more effectively with others using computers.
Distance learning and videoconferencing are concepts made possible with the use of an electronic classroom or boardroom accessible to people in remote locations. Vast databases of information are currently available to users of the Internet, all of whom can send mail messages to each other. The information superhighway is designed to significantly expand this interactive connectivity so that
eo people all over the world will have free access to all these resources.
People power is critical to ensuring that hardware, software, and connectivity are effectively integrated in a socially responsible way. People - computer users and computer professionals - are the ones who will decide which hardware, software, and networks endure and how great an impact they will have on our lives. Ultimately people power
')U must be exercised to ensure that computers are used not only efficiently but in a socially responsible way.
[Adapted from 'Computing in the Information Age', 2nd edition. Nancy Stern & Robert A. Stern, (Wiley), pages 19-22J
UNIT 1 Computer Users 9
1 Match the terms in Table A with the statements in Table B.
Table A
Edutainment Multimedia Expert system Telecommute
Information superhighway
Table B
Software that enables computers to 'think' like experts
Use computers to stay in touch with the office while working at home
iii Internet system designed to provide free, interactive access to vast resources for people allover the world
iv Multimedia materials with a combination of educational and entertainment content v A combination of text with sound, video, animation, and graphics
2 Marl< the following statements as True or False:
Desktop organisers are programs that require desktop computers.
b Computers are sometimes used to monitor systems that previously needed human supervision.
Networking is a way of allowing otherwise incompatible systems to communicate and share resources.
The use of computers prevents people from being creative.
Computer users do not have much influence over the way that computing develops.
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