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Ctss Cpa 3A3 3A3 Frans 06

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frans dariq

on 6 April 2011

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Transcript of Ctss Cpa 3A3 3A3 Frans 06

Computers In Everday Life Computers and productivity Mass production is the manufacture of large amounts
of standardised products on production lines. It was
popularised by Henry in the early 20th century. Mass production increases the amount of things that a
company can produce, and help increase productivity. Mass production is so common nowadays that some parts in your
daily appliances may actually come from the same factory. That is
why the computers that you use are cheaper because of mass
production Production line helped to reduce the cost of goods and improve
productivity, it had a few disadvantages

1. Requires a large workforce
Because a production line has many steps, it requires a large
number of people to support these steps.

2. Repetitive boring work
Work in a production line in repetitive and tends to be boring Automation can overcome these disadvantages.
(Automation occurs when machines are used to carry out
a processs or and activity with minimum human effor
or supervision) In early part of the 20th century, automation was initially done
using mechanical machine. These machines were cleverly
designed to perform only some parts of the production line
automatically One common way toachieve automation is by using machines
that contain embedded processors. Embadded processors are
found on circuit boards of computerised machines. Such
machines include computers and robots A processor is a part of the computer that follow instruction and carries out actions. It is like the "brain" of a computer Benefits of using robots

1. Robots work at fast speed, products are made in a shorter time. So, with robots, productivity is high.

2. Robots are accurate and consisten, consistency and quality of products can be ensured.

3. The costs of producing goods are reduced in the long run.

4. Workers do not have to exposed to conditions that are dangerous or harmful to their health Publishing and Prin Industries Computers are used to automate processes in various
industries. Publishing is the acitivty of putting information in the public arena. (E.G. Newspapers, Magazines, Books).

Printing is part of publishing. It is an industrial process for the production of text and images with ink on paper uising a printing press. 1. Graphics can be changed more easily that before. ( In the past, graphics are drawn on paper. Once inked, it is difficult to correct. )

2. The spelling and grammer checker in word processors helps to reduce mistakes in manuscripts.

3. In the past, layout was done manually ( I.E cutting and pasting ). A desktop publisher considerably improvers productivity in doing layout. Theres is a new types of process called " computers-to-plate "
(CTP). It is a type of printing process which skips the film-producing step. In this method, the digital image, which is also in the CMYK format, is transmitted directly from the computer to a plate. Benefits of CTP

1. CTP technology saves money and time in producing films and shooting plates from films.
This increases productivity.

2. Without having to arrange the films to shoot plates, it reduces the risk of human error. Computers are also used to improve productivity in public services.
Postal mail sorting is a good example. Benefits of using computers in postal mail sorting.

Less manpower is used because of the use of computerised machines. This shortens the time taken to process mail and so the envelopes reach their destinations earlier. Sorting envelops manually requires a lot of manpower and is time consuming. Also, more mistakes may occur. Computters at the airport.

Airports are important hubs for travel. Improvements in aircraft technology
mean that more and mroe people are travelling by plane.

As the volume of air traffic increased, computers were slowly roped in to
perform some of the repetitive tasks and, subsequently, some of the more
sophisticated tasks. Designing Airports

Compyuters can be used for designing airports. For example, using computers,
different designs can be simulated on a computer to test their effectiveness. Simulations may be used to test the amount air traffic that the airport can handle based on airspace capacities, comparisons of alternative sites, airfield layouts, and passenger-and-baggage flow patterns. Simulations can also check how airports react to stress, for example, in cases where the runways are full and there are still airplanes trying to land. Travel/flight information

The travel/flight information board is very important in modern airports because passgengers base their plans on them.

In small airports, there is no need to use computers to update travel/flight information boards because the number of flights arriving/departing is small ( less than 20 per day ). In such cases travel/flight information boards can be updated manually, perhaps once every 4 hours. Large airports may handle hundreds of flight per hour. Doing this manually would involve many people running around updating the travel/flight information boards. This is labour intensive and vulnerable to human errors. Customer Database

Computers are also widely used to automate the collection of customer information. For example, when booking online, the customer's information is colled and stored on a computer. Advantages of customer database.

Save time
Storing the customer's information in a database allows this information to be retrieved or updated very easily and quickly.

Data mining
Data mining refers to extracting information from data. This information helps to reveal hidden paterns in the data that can be used to predict the future. Data Mining is becoming more popular with marketeers who try to extract information about consumer behaviour from data. Disadvantages of customer database

Cost
The equipment and software to support a customer database may be expensive.

Cost of failure
Storing the information in a customer database may lead to a high cost of failure when the database is down. Baggage registration

There are at least 200 000 pieces of baggage flying around the world at ever moment. Kepping track of baggage becomes a challenge. Computers are used to make this process smoother and reliable. Every piece of luggage is given a barcode tag with a nuique number that identifies the lugage. Entertainment

Air travel can be very tiring, especially if you have to wair in transit. Transit waits can last for hours and computers can be used to entertain people. Computers also allow people to remain connected to the rest of the word through means like e-mail and instant messaging Terminal control

Busy airports can have 20 moving aircrafts at any one time. Information is constantly changing and is difficult to track manually. This is why modern airport control cenre relies heavily on computers. Disadvantages of using computers in airports
Relying and computers does have problmes.

Failure
Whikle airports typically have a manual operation plan should computers fail, the increased reliance on computer means that airports are operating at traffic levels that require computerised assistance .

Theft
Computers are capable of storing huge amounts of data. They are alos capable of transferring large amounts of data within a short period of time. These characteistics make computers susceptible to theft. Benefits of using computers in publishing.
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