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Curabitur et lectus vitae purus tincidunt laoreet sit amet ac ipsum. Proin tincidunt mattis nisi a scelerisque. Aliquam placerat dapibus eros non ullamcorper. Integer interdum ullamcorper venenatis. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.

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Curabitur et lectus vitae purus tincidunt laoreet sit amet ac ipsum. Proin tincidunt mattis nisi a scelerisque. Aliquam placerat dapibus eros non ullamcorper. Integer interdum ullamcorper venenatis. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.

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Curabitur et lectus vitae purus tincidunt laoreet sit amet ac ipsum. Proin tincidunt mattis nisi a scelerisque. Aliquam placerat dapibus eros non ullamcorper. Integer interdum ullamcorper venenatis. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.

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Curabitur et lectus vitae purus tincidunt laoreet sit amet ac ipsum. Proin tincidunt mattis nisi a scelerisque. Aliquam placerat dapibus eros non ullamcorper. Integer interdum ullamcorper venenatis. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.

Tuesday, February 5, 2013

Asia political


Some of the world’s first great civilizations sprang up in Asia from 3500 BC onwards. Their riches attracted trade and conquering armies. Over the centuries peoples such as the Mongols and the Turks built up and then lost vast empires. From the 1800’s much of Asia was colonized by European countries. These new rulers took away wealth, but did not help the colonies develop their industries.

Great social changes have taken place in Asia during this century. Many colonies freed themselves from their European rulers, creating independent nation such as India and Jordan. In countries where a large majority of poor people were ruled by a wealthy few, communism seemed to be the answer. Communist governments set prices for goods and labour. They also owned all property. The idea was that people would share the profits as well as the work. However, the spread of communism often caused wars with capitalist countries where individuals were able to own property and to set all prices. In 1991, the Soviet Union abandoned communism and , as it broke up, republics such as Kazakhstan and Uzbekistan become independent countries. Some Asian countries still have communist governments, although a number have recently held democratic elections for the first time. Many Asian governments are now improving the economies of their countries by creating new industries and improving old ones. They are using both government money and foreign aid.

Animal of all shapes and sizes are found throughout Asia. They include the Asian elephant, the Bactrian camel and the giant panda. 

The word’s  largest and smallest bats are also found on this continent. The tiny Kitti’s  hognosed bat lives in caves in Thailand , while the large Bismark  fying fox is found in Indonesia. In the waters off southern Japan lurks the giant spider crab with a massive caw span of up to four metres.

Friday, February 1, 2013

Fourth Generation Computer Languages

When you use a third generation language to perform a task you need to provide a detail description of how this task should be carried out. For very narrow domains (specific areas) fourth generation programming languages have been developed, where you only needed to describe what is required. The most famous example of a fourth generation language is the Structured Query Language (SQL) which is used with databases.

Using SQL you can retrieve data from a database in different formats for various conditions just by specifying the headings you need, where they are stored (tables), and the conditions.

Fig 4.3 compares the differences when instructing a computer using SQL and Visual Basic (Third Generation Language) to retrieve data from a database. The example prints a list of students who have obtained an Avg above 75 from a database. In the Visual Basic example you are required to write all the details on how the data should be retrieved. In the SQL example only the requirements need to be specified.

Computer Languages
Third Generation vs Fourth Generation

Fifth Generation Computer Languages

Computer Languages which are related to Artificial Intelligence e.g. Prolog is an example of Fifth Generation Languages. Prolog is used to develop Expert Systems.